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-rw-r--r--llvm/test/CodeGen/ARM/loop-indexing.ll1190
1 files changed, 1190 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM/loop-indexing.ll b/llvm/test/CodeGen/ARM/loop-indexing.ll
new file mode 100644
index 00000000000..0c364a76969
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/loop-indexing.ll
@@ -0,0 +1,1190 @@
+; RUN: llc -mtriple=thumbv7em -mattr=+fp-armv8 %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-BASE --check-prefix=CHECK-DEFAULT --check-prefix=CHECK-T2
+; RUN: llc -mtriple=thumbv8m.main -mattr=+fp-armv8,+dsp %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-DEFAULT --check-prefix=CHECK-T2
+; RUN: llc -mtriple=thumbv8m.main -mattr=+fp-armv8,+dsp -lsr-backedge-indexing=false %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=DISABLED
+; RUN: llc -mtriple=thumbv8m.base %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=DISABLED
+; RUN: llc -mtriple=thumbv8 %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=DISABLED
+; RUN: llc -mtriple=thumbv8m.main -mattr=+fp-armv8,+dsp -lsr-complexity-limit=2147483647 %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-COMPLEX --check-prefix=CHECK-T2
+
+; Tests to check that post increment addressing modes are used instead of
+; updating base pointers with add instructions.
+
+; TODO: I think we should be able to use post inc addressing with VLDM
+; instructions.
+; CHECK-LABEL: test_fma
+; CHECK: @ %loop
+
+; CHECK-BASE: vldr s{{.*}}, #8]
+; CHECK-BASE: vldr s{{.*}}, #8]
+; CHECK-BASE: vldr s{{.*}}, #12]
+; CHECK-BASE: vldr s{{.*}}, #12]
+
+; CHECK-COMPLEX: vldr s{{.*}}, #8]
+; CHECK-COMPLEX: vldr s{{.*}}, #8]
+; CHECK-COMPLEX: vldr s{{.*}}, #12]
+; CHECK-COMPLEX: vldr s{{.*}}, #12]
+
+define float @test_fma(float* %a, float* %b, i32 %N) {
+entry:
+ br label %loop
+
+loop:
+ %i = phi i32 [ 0, %entry ], [ %i.next, %loop ]
+ %idx.1 = phi i32 [ 0, %entry ], [ %idx.next, %loop ]
+ %res = phi float [ 0.0, %entry ], [ %fma.2, %loop ]
+ %gep.a.1 = getelementptr inbounds float, float* %a, i32 %idx.1
+ %a.1 = load float, float* %gep.a.1
+ %gep.b.1 = getelementptr inbounds float, float* %b, i32 %idx.1
+ %b.1 = load float, float* %gep.b.1
+ %fmul.1 = fmul float %a.1, %b.1
+ %fma.1 = fadd float %fmul.1, %res
+ %idx.2 = or i32 %idx.1, 1
+ %gep.a.2 = getelementptr inbounds float, float* %a, i32 %idx.2
+ %a.2 = load float, float* %gep.a.2
+ %gep.b.2 = getelementptr inbounds float, float* %b, i32 %idx.2
+ %b.2 = load float, float* %gep.b.2
+ %fmul.2 = fmul float %a.2, %b.2
+ %fma.2 = fadd float %fmul.2, %fma.1
+ %i.next = add nsw nuw i32 %i, -2
+ %idx.next = add nsw nuw i32 %idx.1, 2
+ %cmp = icmp ult i32 %i.next, %N
+ br i1 %cmp, label %loop, label %exit
+
+exit:
+ ret float %fma.2
+}
+
+; CHECK-LABEL: convolve_16bit
+; TODO: Both arrays should use indexing
+; CHECK-DEFAULT: ldr{{.*}}, #8]!
+; CHECK-DEFAULT: ldr{{.*}}, #10]
+; CHECK-DEFAULT: ldr{{.*}}, #4]
+; CHECK-DEFAULT: ldr{{.*}}, #6]
+
+; CHECK-COMPLEX: ldr{{.*}}, #8]!
+; CHECK-COMPLEX: ldr{{.*}}, #10]
+; CHECK-COMPLEX: ldr{{.*}}, #4]
+; CHECK-COMPLEX: ldr{{.*}}, #6]
+
+; DISABLED-NOT: ldr{{.*}}]!
+; DISABLED-NOT: str{{.*}}]!
+
+define void @convolve_16bit(i16** nocapture readonly %input_image, i16** nocapture readonly %filter,
+ i32 %filter_dim, i32 %out_width, i32 %out_height,
+ i32** nocapture readonly %convolved) {
+entry:
+ %cmp92 = icmp eq i32 %out_height, 0
+ br i1 %cmp92, label %for.cond.cleanup, label %for.cond1.preheader.lr.ph
+
+for.cond1.preheader.lr.ph: ; preds = %entry
+ %xtraiter = and i32 %filter_dim, 3
+ %unroll_iter = sub i32 %filter_dim, %xtraiter
+ br label %for.cond1.preheader
+
+for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
+ %res_y.093 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %add28, %for.cond.cleanup3 ]
+ %arrayidx22 = getelementptr inbounds i32*, i32** %convolved, i32 %res_y.093
+ %tmp3 = load i32*, i32** %arrayidx22, align 4
+ br label %for.cond9.preheader.us.us.preheader
+
+for.cond9.preheader.us.us.preheader: ; preds = %for.cond5.for.cond.cleanup7_crit_edge.us, %for.cond5.preheader.lr.ph
+ %res_x.060.us = phi i32 [ %add25.us, %for.cond5.for.cond.cleanup7_crit_edge.us ], [ 0, %for.cond1.preheader ]
+ br label %for.cond9.preheader.us.us
+
+for.cond9.preheader.us.us: ; preds = %for.cond9.for.cond.cleanup11_crit_edge.us.us, %for.cond9.preheader.us.us.preheader
+ %filter_y.056.us.us = phi i32 [ %inc20.us.us, %for.cond9.for.cond.cleanup11_crit_edge.us.us.unr-lcssa ], [ 0, %for.cond9.preheader.us.us.preheader ]
+ %result_element.055.us.us = phi i32 [ %add18.us.us.3, %for.cond9.for.cond.cleanup11_crit_edge.us.us.unr-lcssa ], [ 0, %for.cond9.preheader.us.us.preheader ]
+ %add.us.us = add i32 %filter_y.056.us.us, %res_y.093
+ %arrayidx.us.us = getelementptr inbounds i16*, i16** %filter, i32 %filter_y.056.us.us
+ %tmp5 = load i16*, i16** %arrayidx.us.us, align 4
+ %arrayidx15.us.us = getelementptr inbounds i16*, i16** %input_image, i32 %add.us.us
+ %tmp6 = load i16*, i16** %arrayidx15.us.us, align 4
+ br label %for.body12.us.us
+
+for.body12.us.us: ; preds = %for.body12.us.us, %for.cond9.preheader.us.us
+ %filter_x.053.us.us = phi i32 [ %inc.us.us.3, %for.body12.us.us ], [ 0, %for.cond9.preheader.us.us ]
+ %result_element.152.us.us = phi i32 [ %add18.us.us.3, %for.body12.us.us ], [ %result_element.055.us.us, %for.cond9.preheader.us.us ]
+ %niter = phi i32 [ %niter.nsub.3, %for.body12.us.us ], [ %unroll_iter, %for.cond9.preheader.us.us ]
+ %add13.us.us = add i32 %filter_x.053.us.us, %res_x.060.us
+ %arrayidx14.us.us = getelementptr inbounds i16, i16* %tmp5, i32 %filter_x.053.us.us
+ %tmp9 = load i16, i16* %arrayidx14.us.us, align 2
+ %conv.us.us = sext i16 %tmp9 to i32
+ %arrayidx16.us.us = getelementptr inbounds i16, i16* %tmp6, i32 %add13.us.us
+ %tmp10 = load i16, i16* %arrayidx16.us.us, align 2
+ %conv17.us.us = sext i16 %tmp10 to i32
+ %mul.us.us = mul nsw i32 %conv17.us.us, %conv.us.us
+ %add18.us.us = add nsw i32 %mul.us.us, %result_element.152.us.us
+ %inc.us.us = or i32 %filter_x.053.us.us, 1
+ %add13.us.us.1 = add i32 %inc.us.us, %res_x.060.us
+ %arrayidx14.us.us.1 = getelementptr inbounds i16, i16* %tmp5, i32 %inc.us.us
+ %tmp11 = load i16, i16* %arrayidx14.us.us.1, align 2
+ %conv.us.us.1 = sext i16 %tmp11 to i32
+ %arrayidx16.us.us.1 = getelementptr inbounds i16, i16* %tmp6, i32 %add13.us.us.1
+ %tmp12 = load i16, i16* %arrayidx16.us.us.1, align 2
+ %conv17.us.us.1 = sext i16 %tmp12 to i32
+ %mul.us.us.1 = mul nsw i32 %conv17.us.us.1, %conv.us.us.1
+ %add18.us.us.1 = add nsw i32 %mul.us.us.1, %add18.us.us
+ %inc.us.us.1 = or i32 %filter_x.053.us.us, 2
+ %add13.us.us.2 = add i32 %inc.us.us.1, %res_x.060.us
+ %arrayidx14.us.us.2 = getelementptr inbounds i16, i16* %tmp5, i32 %inc.us.us.1
+ %tmp13 = load i16, i16* %arrayidx14.us.us.2, align 2
+ %conv.us.us.2 = sext i16 %tmp13 to i32
+ %arrayidx16.us.us.2 = getelementptr inbounds i16, i16* %tmp6, i32 %add13.us.us.2
+ %tmp14 = load i16, i16* %arrayidx16.us.us.2, align 2
+ %conv17.us.us.2 = sext i16 %tmp14 to i32
+ %mul.us.us.2 = mul nsw i32 %conv17.us.us.2, %conv.us.us.2
+ %add18.us.us.2 = add nsw i32 %mul.us.us.2, %add18.us.us.1
+ %inc.us.us.2 = or i32 %filter_x.053.us.us, 3
+ %add13.us.us.3 = add i32 %inc.us.us.2, %res_x.060.us
+ %arrayidx14.us.us.3 = getelementptr inbounds i16, i16* %tmp5, i32 %inc.us.us.2
+ %tmp15 = load i16, i16* %arrayidx14.us.us.3, align 2
+ %conv.us.us.3 = sext i16 %tmp15 to i32
+ %arrayidx16.us.us.3 = getelementptr inbounds i16, i16* %tmp6, i32 %add13.us.us.3
+ %tmp16 = load i16, i16* %arrayidx16.us.us.3, align 2
+ %conv17.us.us.3 = sext i16 %tmp16 to i32
+ %mul.us.us.3 = mul nsw i32 %conv17.us.us.3, %conv.us.us.3
+ %add18.us.us.3 = add nsw i32 %mul.us.us.3, %add18.us.us.2
+ %inc.us.us.3 = add i32 %filter_x.053.us.us, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond9.for.cond.cleanup11_crit_edge.us.us.unr-lcssa, label %for.body12.us.us
+
+for.cond9.for.cond.cleanup11_crit_edge.us.us.unr-lcssa: ; preds = %for.body12.us.us, %for.cond9.preheader.us.us
+ %inc20.us.us = add nuw i32 %filter_y.056.us.us, 1
+ %exitcond98 = icmp eq i32 %inc20.us.us, %filter_dim
+ br i1 %exitcond98, label %for.cond5.for.cond.cleanup7_crit_edge.us, label %for.cond9.preheader.us.us
+
+for.cond5.for.cond.cleanup7_crit_edge.us: ; preds = %for.cond9.for.cond.cleanup11_crit_edge.us.us
+ %arrayidx23.us = getelementptr inbounds i32, i32* %tmp3, i32 %res_x.060.us
+ store i32 %add18.us.us.3, i32* %arrayidx23.us, align 4
+ %add25.us = add nuw i32 %res_x.060.us, 1
+ %exitcond99 = icmp eq i32 %add25.us, %out_width
+ br i1 %exitcond99, label %for.cond.cleanup3, label %for.cond9.preheader.us.us.preheader
+
+for.cond.cleanup3: ; preds = %for.cond5.for.cond.cleanup7_crit_edge.us, %for.cond5.preheader.preheader, %for.cond1.preheader
+ %add28 = add nuw i32 %res_y.093, 1
+ %exitcond100 = icmp eq i32 %add28, %out_height
+ br i1 %exitcond100, label %for.cond.cleanup, label %for.cond1.preheader
+
+for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
+ ret void
+}
+
+; CHECK-LABEL: mul_8x8
+; CHECK: @ %for.body
+
+; CHECK-DEFAULT: ldrb{{.*}}, #3]
+; CHECK-DEFAULT: ldrb{{.*}}, #3]
+; CHECK-DEFAULT: str{{.*}}, #16]!
+; CHECK-DEFAULT: ldrb{{.*}}, #4]!
+; CHECK-DEFAULT: ldrb{{.*}}, #4]!
+; CHECK-DEFAULT: str{{.*}}, #4]
+; CHECK-DEFAULT: ldrb{{.*}}, #1]
+; CHECK-DEFAULT: ldrb{{.*}}, #1]
+; CHECK-DEFAULT: str{{.*}}, #8]
+; CHECK-DEFAULT: ldrb{{.*}}, #2]
+; CHECK-DEFAULT: ldrb{{.*}}, #2]
+; CHECK-DEFAULT: str{{.*}}, #12]
+
+; CHECK-COMPLEX: ldrb{{.*}}, #3]
+; CHECK-COMPLEX: ldrb{{.*}}, #3]
+; CHECK-COMPLEX: str{{.*}}, #16]!
+; CHECK-COMPLEX: ldrb{{.*}}, #4]!
+; CHECK-COMPLEX: ldrb{{.*}}, #4]!
+; CHECK-COMPLEX: str{{.*}}, #4]
+; CHECK-COMPLEX: ldrb{{.*}}, #1]
+; CHECK-COMPLEX: ldrb{{.*}}, #1]
+; CHECK-COMPLEX: str{{.*}}, #8]
+; CHECK-COMPLEX: ldrb{{.*}}, #2]
+; CHECK-COMPLEX: ldrb{{.*}}, #2]
+; CHECK-COMPLEX: str{{.*}}, #12]
+
+; DISABLED-NOT: ldr{{.*}}]!
+; DISABLED-NOT: str{{.*}}]!
+
+; CHECK-T2: @ %for.body.epil
+; CHECK-T2: ldrb{{.*}}, #1]!
+; CHECK-T2: ldrb{{.*}}, #1]!
+; CHECK-T2: str{{.*}}, #4]!
+
+define void @mul_8x8(i8* nocapture readonly %A, i8* nocapture readonly %B, i32* nocapture %C, i32 %N) {
+entry:
+ %cmp9 = icmp eq i32 %N, 0
+ br i1 %cmp9, label %for.cond.cleanup, label %for.body.preheader
+
+for.body.preheader: ; preds = %entry
+ %tmp = add i32 %N, -1
+ %xtraiter = and i32 %N, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ br i1 %tmp1, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body.preheader.new
+
+for.body.preheader.new: ; preds = %for.body.preheader
+ %unroll_iter = sub i32 %N, %xtraiter
+ br label %for.body
+
+for.cond.cleanup.loopexit.unr-lcssa: ; preds = %for.body, %for.body.preheader
+ %i.010.unr = phi i32 [ 0, %for.body.preheader ], [ %inc.3, %for.body ]
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br i1 %lcmp.mod, label %for.cond.cleanup, label %for.body.epil
+
+for.body.epil: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa
+ %i.010.epil = phi i32 [ %inc.epil, %for.body.epil ], [ %i.010.unr, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body.epil ], [ %xtraiter, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %arrayidx.epil = getelementptr inbounds i8, i8* %A, i32 %i.010.epil
+ %tmp2 = load i8, i8* %arrayidx.epil, align 1
+ %conv.epil = zext i8 %tmp2 to i32
+ %arrayidx1.epil = getelementptr inbounds i8, i8* %B, i32 %i.010.epil
+ %tmp3 = load i8, i8* %arrayidx1.epil, align 1
+ %conv2.epil = zext i8 %tmp3 to i32
+ %mul.epil = mul nuw nsw i32 %conv2.epil, %conv.epil
+ %arrayidx3.epil = getelementptr inbounds i32, i32* %C, i32 %i.010.epil
+ store i32 %mul.epil, i32* %arrayidx3.epil, align 4
+ %inc.epil = add nuw i32 %i.010.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond.cleanup, label %for.body.epil
+
+for.cond.cleanup: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa, %entry
+ ret void
+
+for.body: ; preds = %for.body, %for.body.preheader.new
+ %i.010 = phi i32 [ 0, %for.body.preheader.new ], [ %inc.3, %for.body ]
+ %niter = phi i32 [ %unroll_iter, %for.body.preheader.new ], [ %niter.nsub.3, %for.body ]
+ %arrayidx = getelementptr inbounds i8, i8* %A, i32 %i.010
+ %tmp4 = load i8, i8* %arrayidx, align 1
+ %conv = zext i8 %tmp4 to i32
+ %arrayidx1 = getelementptr inbounds i8, i8* %B, i32 %i.010
+ %tmp5 = load i8, i8* %arrayidx1, align 1
+ %conv2 = zext i8 %tmp5 to i32
+ %mul = mul nuw nsw i32 %conv2, %conv
+ %arrayidx3 = getelementptr inbounds i32, i32* %C, i32 %i.010
+ store i32 %mul, i32* %arrayidx3, align 4
+ %inc = or i32 %i.010, 1
+ %arrayidx.1 = getelementptr inbounds i8, i8* %A, i32 %inc
+ %tmp6 = load i8, i8* %arrayidx.1, align 1
+ %conv.1 = zext i8 %tmp6 to i32
+ %arrayidx1.1 = getelementptr inbounds i8, i8* %B, i32 %inc
+ %tmp7 = load i8, i8* %arrayidx1.1, align 1
+ %conv2.1 = zext i8 %tmp7 to i32
+ %mul.1 = mul nuw nsw i32 %conv2.1, %conv.1
+ %arrayidx3.1 = getelementptr inbounds i32, i32* %C, i32 %inc
+ store i32 %mul.1, i32* %arrayidx3.1, align 4
+ %inc.1 = or i32 %i.010, 2
+ %arrayidx.2 = getelementptr inbounds i8, i8* %A, i32 %inc.1
+ %tmp8 = load i8, i8* %arrayidx.2, align 1
+ %conv.2 = zext i8 %tmp8 to i32
+ %arrayidx1.2 = getelementptr inbounds i8, i8* %B, i32 %inc.1
+ %tmp9 = load i8, i8* %arrayidx1.2, align 1
+ %conv2.2 = zext i8 %tmp9 to i32
+ %mul.2 = mul nuw nsw i32 %conv2.2, %conv.2
+ %arrayidx3.2 = getelementptr inbounds i32, i32* %C, i32 %inc.1
+ store i32 %mul.2, i32* %arrayidx3.2, align 4
+ %inc.2 = or i32 %i.010, 3
+ %arrayidx.3 = getelementptr inbounds i8, i8* %A, i32 %inc.2
+ %tmp10 = load i8, i8* %arrayidx.3, align 1
+ %conv.3 = zext i8 %tmp10 to i32
+ %arrayidx1.3 = getelementptr inbounds i8, i8* %B, i32 %inc.2
+ %tmp11 = load i8, i8* %arrayidx1.3, align 1
+ %conv2.3 = zext i8 %tmp11 to i32
+ %mul.3 = mul nuw nsw i32 %conv2.3, %conv.3
+ %arrayidx3.3 = getelementptr inbounds i32, i32* %C, i32 %inc.2
+ store i32 %mul.3, i32* %arrayidx3.3, align 4
+ %inc.3 = add i32 %i.010, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body
+}
+
+; CHECK-LABEL: mul_16x8
+; CHECK: @ %for.body
+
+; CHECK-DEFAULT: ldrsh{{.*}}, #2]
+; CHECK-DEFAULT: ldrb{{.*}}, #-1]
+; CHECK-DEFAULT: str{{.*}}, #16]!
+; CHECK-DEFAULT: ldrb{{.*}},
+; CHECK-DEFAULT: ldrsh{{.*}}, #2]
+; CHECK-DEFAULT: str{{.*}}, #4]
+; CHECK-DEFAULT: ldrsh{{.*}}, #4]
+; CHECK-DEFAULT: ldrb{{.*}}, #1]
+; CHECK-DEFAULT: str{{.*}}, #8]
+; CHECK-DEFAULT: ldrsh{{.*}}, #8]!
+; CHECK-DEFAULT: ldrb{{.*}}, #2]
+; CHECK-DEFAULT: str{{.*}}, #12]
+
+; CHECK-COMPLEX: ldrsh{{.*}}, #8]!
+; CHECK-COMPLEX: str{{.*}}, #16]!
+; CHECK-COMPLEX: ldrb{{.*}}, #4]!
+
+; DISABLED-NOT: ldr{{.*}}]!
+; DISABLED-NOT: str{{.*}}]!
+
+; CHECK-T2: @ %for.body.epil
+; CHECK-T2: ldrsh{{.*}}, #2]!
+; CHECK-T2: ldrb{{.*}}, #1]!
+; CHECK-T2: str{{.*}}, #4]!
+
+define void @mul_16x8(i16* nocapture readonly %A, i8* nocapture readonly %B, i32* nocapture %C, i32 %N) {
+entry:
+ %cmp9 = icmp eq i32 %N, 0
+ br i1 %cmp9, label %for.cond.cleanup, label %for.body.preheader
+
+for.body.preheader: ; preds = %entry
+ %tmp = add i32 %N, -1
+ %xtraiter = and i32 %N, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ br i1 %tmp1, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body.preheader.new
+
+for.body.preheader.new: ; preds = %for.body.preheader
+ %unroll_iter = sub i32 %N, %xtraiter
+ br label %for.body
+
+for.cond.cleanup.loopexit.unr-lcssa: ; preds = %for.body, %for.body.preheader
+ %i.010.unr = phi i32 [ 0, %for.body.preheader ], [ %inc.3, %for.body ]
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br i1 %lcmp.mod, label %for.cond.cleanup, label %for.body.epil
+
+for.body.epil: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa
+ %i.010.epil = phi i32 [ %inc.epil, %for.body.epil ], [ %i.010.unr, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body.epil ], [ %xtraiter, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %arrayidx.epil = getelementptr inbounds i16, i16* %A, i32 %i.010.epil
+ %tmp2 = load i16, i16* %arrayidx.epil, align 2
+ %conv.epil = sext i16 %tmp2 to i32
+ %arrayidx1.epil = getelementptr inbounds i8, i8* %B, i32 %i.010.epil
+ %tmp3 = load i8, i8* %arrayidx1.epil, align 1
+ %conv2.epil = zext i8 %tmp3 to i32
+ %mul.epil = mul nsw i32 %conv2.epil, %conv.epil
+ %arrayidx3.epil = getelementptr inbounds i32, i32* %C, i32 %i.010.epil
+ store i32 %mul.epil, i32* %arrayidx3.epil, align 4
+ %inc.epil = add nuw i32 %i.010.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond.cleanup, label %for.body.epil
+
+for.cond.cleanup: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa, %entry
+ ret void
+
+for.body: ; preds = %for.body, %for.body.preheader.new
+ %i.010 = phi i32 [ 0, %for.body.preheader.new ], [ %inc.3, %for.body ]
+ %niter = phi i32 [ %unroll_iter, %for.body.preheader.new ], [ %niter.nsub.3, %for.body ]
+ %arrayidx = getelementptr inbounds i16, i16* %A, i32 %i.010
+ %tmp4 = load i16, i16* %arrayidx, align 2
+ %conv = sext i16 %tmp4 to i32
+ %arrayidx1 = getelementptr inbounds i8, i8* %B, i32 %i.010
+ %tmp5 = load i8, i8* %arrayidx1, align 1
+ %conv2 = zext i8 %tmp5 to i32
+ %mul = mul nsw i32 %conv2, %conv
+ %arrayidx3 = getelementptr inbounds i32, i32* %C, i32 %i.010
+ store i32 %mul, i32* %arrayidx3, align 4
+ %inc = or i32 %i.010, 1
+ %arrayidx.1 = getelementptr inbounds i16, i16* %A, i32 %inc
+ %tmp6 = load i16, i16* %arrayidx.1, align 2
+ %conv.1 = sext i16 %tmp6 to i32
+ %arrayidx1.1 = getelementptr inbounds i8, i8* %B, i32 %inc
+ %tmp7 = load i8, i8* %arrayidx1.1, align 1
+ %conv2.1 = zext i8 %tmp7 to i32
+ %mul.1 = mul nsw i32 %conv2.1, %conv.1
+ %arrayidx3.1 = getelementptr inbounds i32, i32* %C, i32 %inc
+ store i32 %mul.1, i32* %arrayidx3.1, align 4
+ %inc.1 = or i32 %i.010, 2
+ %arrayidx.2 = getelementptr inbounds i16, i16* %A, i32 %inc.1
+ %tmp8 = load i16, i16* %arrayidx.2, align 2
+ %conv.2 = sext i16 %tmp8 to i32
+ %arrayidx1.2 = getelementptr inbounds i8, i8* %B, i32 %inc.1
+ %tmp9 = load i8, i8* %arrayidx1.2, align 1
+ %conv2.2 = zext i8 %tmp9 to i32
+ %mul.2 = mul nsw i32 %conv2.2, %conv.2
+ %arrayidx3.2 = getelementptr inbounds i32, i32* %C, i32 %inc.1
+ store i32 %mul.2, i32* %arrayidx3.2, align 4
+ %inc.2 = or i32 %i.010, 3
+ %arrayidx.3 = getelementptr inbounds i16, i16* %A, i32 %inc.2
+ %tmp10 = load i16, i16* %arrayidx.3, align 2
+ %conv.3 = sext i16 %tmp10 to i32
+ %arrayidx1.3 = getelementptr inbounds i8, i8* %B, i32 %inc.2
+ %tmp11 = load i8, i8* %arrayidx1.3, align 1
+ %conv2.3 = zext i8 %tmp11 to i32
+ %mul.3 = mul nsw i32 %conv2.3, %conv.3
+ %arrayidx3.3 = getelementptr inbounds i32, i32* %C, i32 %inc.2
+ store i32 %mul.3, i32* %arrayidx3.3, align 4
+ %inc.3 = add i32 %i.010, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body
+}
+
+; CHECK-LABEL: mul_16x16
+; CHECK: @ %for.body
+
+; TODO: pre-inc store
+; CHECK-DEFAULT: ldrsh{{.*}}, #2]
+; CHECK-DEFAULT: ldrsh{{.*}}, #2]
+; CHECK-DEFAULT: str{{.*}}, #16]!
+; CHECK-DEFAULT: ldrsh{{.*}}, #2]
+; CHECK-DEFAULT: ldrsh{{.*}}, #2]
+; CHECK-DEFAULT: str{{.*}}, #4]
+; CHECK-DEFAULT: ldrsh{{.*}}, #4]
+; CHECK-DEFAULT: ldrsh{{.*}}, #4]
+; CHECK-DEFAULT: str{{.*}}, #8]
+; CHECK-DEFAULT: ldrsh{{.*}}, #8]
+; CHECK-DEFAULT: ldrsh{{.*}}, #8]
+; CHECK-DEFAULT: str{{.*}}, #12]
+
+; CHECK-COMPLEX: ldrsh
+; CHECK-COMPLEX: ldrsh
+; CHECK-COMPLEX: str
+; CHECK-COMPLEX: ldrsh{{.*}}, #2]
+; CHECK-COMPLEX: ldrsh{{.*}}, #2]
+; CHECK-COMPLEX: str{{.*}}, #4]
+; CHECK-COMPLEX: ldrsh{{.*}}, #4]
+; CHECK-COMPLEX: ldrsh{{.*}}, #4]
+; CHECK-COMPLEX: str{{.*}}, #8]
+; CHECK-COMPLEX: ldrsh{{.*}}, #6]
+; CHECK-COMPLEX: ldrsh{{.*}}, #6]
+; CHECK-COMPLEX: str{{.*}}, #12]
+
+; DISABLED-NOT: ldr{{.*}}]!
+; DISABLED-NOT: str{{.*}}]!
+
+; CHECK-T2: @ %for.body.epil
+; CHECK-T2: ldrsh{{.*}}, #2]!
+; CHECK-T2: ldrsh{{.*}}, #2]!
+; CHECK-T2: str{{.*}}, #4]!
+
+define void @mul_16x16(i16* nocapture readonly %A, i16* nocapture readonly %B, i32* nocapture %C, i32 %N) {
+entry:
+ %cmp9 = icmp eq i32 %N, 0
+ br i1 %cmp9, label %for.cond.cleanup, label %for.body.preheader
+
+for.body.preheader: ; preds = %entry
+ %tmp = add i32 %N, -1
+ %xtraiter = and i32 %N, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ br i1 %tmp1, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body.preheader.new
+
+for.body.preheader.new: ; preds = %for.body.preheader
+ %unroll_iter = sub i32 %N, %xtraiter
+ br label %for.body
+
+for.cond.cleanup.loopexit.unr-lcssa: ; preds = %for.body, %for.body.preheader
+ %i.010.unr = phi i32 [ 0, %for.body.preheader ], [ %inc.3, %for.body ]
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br i1 %lcmp.mod, label %for.cond.cleanup, label %for.body.epil
+
+for.body.epil: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa
+ %i.010.epil = phi i32 [ %inc.epil, %for.body.epil ], [ %i.010.unr, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body.epil ], [ %xtraiter, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %arrayidx.epil = getelementptr inbounds i16, i16* %A, i32 %i.010.epil
+ %tmp2 = load i16, i16* %arrayidx.epil, align 2
+ %conv.epil = sext i16 %tmp2 to i32
+ %arrayidx1.epil = getelementptr inbounds i16, i16* %B, i32 %i.010.epil
+ %tmp3 = load i16, i16* %arrayidx1.epil, align 2
+ %conv2.epil = sext i16 %tmp3 to i32
+ %mul.epil = mul nsw i32 %conv2.epil, %conv.epil
+ %arrayidx3.epil = getelementptr inbounds i32, i32* %C, i32 %i.010.epil
+ store i32 %mul.epil, i32* %arrayidx3.epil, align 4
+ %inc.epil = add nuw i32 %i.010.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond.cleanup, label %for.body.epil
+
+for.cond.cleanup: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa, %entry
+ ret void
+
+for.body: ; preds = %for.body, %for.body.preheader.new
+ %i.010 = phi i32 [ 0, %for.body.preheader.new ], [ %inc.3, %for.body ]
+ %niter = phi i32 [ %unroll_iter, %for.body.preheader.new ], [ %niter.nsub.3, %for.body ]
+ %arrayidx = getelementptr inbounds i16, i16* %A, i32 %i.010
+ %tmp4 = load i16, i16* %arrayidx, align 2
+ %conv = sext i16 %tmp4 to i32
+ %arrayidx1 = getelementptr inbounds i16, i16* %B, i32 %i.010
+ %tmp5 = load i16, i16* %arrayidx1, align 2
+ %conv2 = sext i16 %tmp5 to i32
+ %mul = mul nsw i32 %conv2, %conv
+ %arrayidx3 = getelementptr inbounds i32, i32* %C, i32 %i.010
+ store i32 %mul, i32* %arrayidx3, align 4
+ %inc = or i32 %i.010, 1
+ %arrayidx.1 = getelementptr inbounds i16, i16* %A, i32 %inc
+ %tmp6 = load i16, i16* %arrayidx.1, align 2
+ %conv.1 = sext i16 %tmp6 to i32
+ %arrayidx1.1 = getelementptr inbounds i16, i16* %B, i32 %inc
+ %tmp7 = load i16, i16* %arrayidx1.1, align 2
+ %conv2.1 = sext i16 %tmp7 to i32
+ %mul.1 = mul nsw i32 %conv2.1, %conv.1
+ %arrayidx3.1 = getelementptr inbounds i32, i32* %C, i32 %inc
+ store i32 %mul.1, i32* %arrayidx3.1, align 4
+ %inc.1 = or i32 %i.010, 2
+ %arrayidx.2 = getelementptr inbounds i16, i16* %A, i32 %inc.1
+ %tmp8 = load i16, i16* %arrayidx.2, align 2
+ %conv.2 = sext i16 %tmp8 to i32
+ %arrayidx1.2 = getelementptr inbounds i16, i16* %B, i32 %inc.1
+ %tmp9 = load i16, i16* %arrayidx1.2, align 2
+ %conv2.2 = sext i16 %tmp9 to i32
+ %mul.2 = mul nsw i32 %conv2.2, %conv.2
+ %arrayidx3.2 = getelementptr inbounds i32, i32* %C, i32 %inc.1
+ store i32 %mul.2, i32* %arrayidx3.2, align 4
+ %inc.2 = or i32 %i.010, 3
+ %arrayidx.3 = getelementptr inbounds i16, i16* %A, i32 %inc.2
+ %tmp10 = load i16, i16* %arrayidx.3, align 2
+ %conv.3 = sext i16 %tmp10 to i32
+ %arrayidx1.3 = getelementptr inbounds i16, i16* %B, i32 %inc.2
+ %tmp11 = load i16, i16* %arrayidx1.3, align 2
+ %conv2.3 = sext i16 %tmp11 to i32
+ %mul.3 = mul nsw i32 %conv2.3, %conv.3
+ %arrayidx3.3 = getelementptr inbounds i32, i32* %C, i32 %inc.2
+ store i32 %mul.3, i32* %arrayidx3.3, align 4
+ %inc.3 = add i32 %i.010, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body
+}
+
+; CHECK-LABEL: mul_8x8_2d
+; CHECK: @ %for.body4.us
+
+; CHECK-DEFAULT: ldr{{.*}}, #16]!
+; CHECK-DEFAULT: ldrb{{.*}}, #4]!
+
+; DISABLED-NOT: ldr{{.*}}]!
+; DISABLED-NOT: str{{.*}}]!
+
+; CHECK-T2: @ %for.body4.us.epil
+; CHECK-T2: ldrb{{.*}}, #1]!
+; CHECK-T2: ldr{{.*}}, #4]!
+
+define void @mul_8x8_2d(i8* nocapture readonly %A, i8** nocapture readonly %B, i32** nocapture readonly %C, i32 %N, i32 %M) {
+entry:
+ %cmp24 = icmp eq i32 %N, 0
+ %cmp222 = icmp eq i32 %M, 0
+ %or.cond = or i1 %cmp24, %cmp222
+ br i1 %or.cond, label %for.cond.cleanup, label %for.cond1.preheader.us.preheader
+
+for.cond1.preheader.us.preheader: ; preds = %entry
+ %tmp = add i32 %M, -1
+ %xtraiter = and i32 %M, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ %unroll_iter = sub i32 %M, %xtraiter
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br label %for.cond1.preheader.us
+
+for.cond1.preheader.us: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.us.preheader
+ %i.025.us = phi i32 [ %inc11.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
+ %arrayidx.us = getelementptr inbounds i8, i8* %A, i32 %i.025.us
+ %arrayidx5.us = getelementptr inbounds i8*, i8** %B, i32 %i.025.us
+ %arrayidx8.us = getelementptr inbounds i32*, i32** %C, i32 %i.025.us
+ %.pre = load i8*, i8** %arrayidx5.us, align 4
+ %.pre30 = load i32*, i32** %arrayidx8.us, align 4
+ br i1 %tmp1, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.body4.us: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %j.023.us = phi i32 [ %inc.us.3, %for.body4.us ], [ 0, %for.cond1.preheader.us ]
+ %niter = phi i32 [ %niter.nsub.3, %for.body4.us ], [ %unroll_iter, %for.cond1.preheader.us ]
+ %tmp2 = load i8, i8* %arrayidx.us, align 1
+ %conv.us = zext i8 %tmp2 to i32
+ %arrayidx6.us = getelementptr inbounds i8, i8* %.pre, i32 %j.023.us
+ %tmp3 = load i8, i8* %arrayidx6.us, align 1
+ %conv7.us = zext i8 %tmp3 to i32
+ %mul.us = mul nuw nsw i32 %conv7.us, %conv.us
+ %arrayidx9.us = getelementptr inbounds i32, i32* %.pre30, i32 %j.023.us
+ %tmp4 = load i32, i32* %arrayidx9.us, align 4
+ %add.us = add nsw i32 %tmp4, %mul.us
+ store i32 %add.us, i32* %arrayidx9.us, align 4
+ %inc.us = or i32 %j.023.us, 1
+ %tmp5 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.1 = zext i8 %tmp5 to i32
+ %arrayidx6.us.1 = getelementptr inbounds i8, i8* %.pre, i32 %inc.us
+ %tmp6 = load i8, i8* %arrayidx6.us.1, align 1
+ %conv7.us.1 = zext i8 %tmp6 to i32
+ %mul.us.1 = mul nuw nsw i32 %conv7.us.1, %conv.us.1
+ %arrayidx9.us.1 = getelementptr inbounds i32, i32* %.pre30, i32 %inc.us
+ %tmp7 = load i32, i32* %arrayidx9.us.1, align 4
+ %add.us.1 = add nsw i32 %tmp7, %mul.us.1
+ store i32 %add.us.1, i32* %arrayidx9.us.1, align 4
+ %inc.us.1 = or i32 %j.023.us, 2
+ %tmp8 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.2 = zext i8 %tmp8 to i32
+ %arrayidx6.us.2 = getelementptr inbounds i8, i8* %.pre, i32 %inc.us.1
+ %tmp9 = load i8, i8* %arrayidx6.us.2, align 1
+ %conv7.us.2 = zext i8 %tmp9 to i32
+ %mul.us.2 = mul nuw nsw i32 %conv7.us.2, %conv.us.2
+ %arrayidx9.us.2 = getelementptr inbounds i32, i32* %.pre30, i32 %inc.us.1
+ %tmp10 = load i32, i32* %arrayidx9.us.2, align 4
+ %add.us.2 = add nsw i32 %tmp10, %mul.us.2
+ store i32 %add.us.2, i32* %arrayidx9.us.2, align 4
+ %inc.us.2 = or i32 %j.023.us, 3
+ %tmp11 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.3 = zext i8 %tmp11 to i32
+ %arrayidx6.us.3 = getelementptr inbounds i8, i8* %.pre, i32 %inc.us.2
+ %tmp12 = load i8, i8* %arrayidx6.us.3, align 1
+ %conv7.us.3 = zext i8 %tmp12 to i32
+ %mul.us.3 = mul nuw nsw i32 %conv7.us.3, %conv.us.3
+ %arrayidx9.us.3 = getelementptr inbounds i32, i32* %.pre30, i32 %inc.us.2
+ %tmp13 = load i32, i32* %arrayidx9.us.3, align 4
+ %add.us.3 = add nsw i32 %tmp13, %mul.us.3
+ store i32 %add.us.3, i32* %arrayidx9.us.3, align 4
+ %inc.us.3 = add i32 %j.023.us, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %j.023.us.unr = phi i32 [ 0, %for.cond1.preheader.us ], [ %inc.us.3, %for.body4.us ]
+ br i1 %lcmp.mod, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.body4.us.epil: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %j.023.us.epil = phi i32 [ %inc.us.epil, %for.body4.us.epil ], [ %j.023.us.unr, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body4.us.epil ], [ %xtraiter, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %tmp14 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.epil = zext i8 %tmp14 to i32
+ %arrayidx6.us.epil = getelementptr inbounds i8, i8* %.pre, i32 %j.023.us.epil
+ %tmp15 = load i8, i8* %arrayidx6.us.epil, align 1
+ %conv7.us.epil = zext i8 %tmp15 to i32
+ %mul.us.epil = mul nuw nsw i32 %conv7.us.epil, %conv.us.epil
+ %arrayidx9.us.epil = getelementptr inbounds i32, i32* %.pre30, i32 %j.023.us.epil
+ %tmp16 = load i32, i32* %arrayidx9.us.epil, align 4
+ %add.us.epil = add nsw i32 %tmp16, %mul.us.epil
+ store i32 %add.us.epil, i32* %arrayidx9.us.epil, align 4
+ %inc.us.epil = add nuw i32 %j.023.us.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.cond1.for.cond.cleanup3_crit_edge.us: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %inc11.us = add nuw i32 %i.025.us, 1
+ %exitcond28 = icmp eq i32 %inc11.us, %N
+ br i1 %exitcond28, label %for.cond.cleanup, label %for.cond1.preheader.us
+
+for.cond.cleanup: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %entry
+ ret void
+}
+
+; CHECK-LABEL: mul_16x16_2d
+; CHECK: @ %for.body4.us
+
+; CHECK-DEFAULT: ldr{{.*}}, #16]!
+; CHECK-DEFAULT: ldrsh{{.*}}, #8]!
+
+; DISABLED-NOT: ldr{{.*}}]!
+; DISABLED-NOT: str{{.*}}]!
+
+; CHECK-T2: @ %for.body4.us.epil
+; CHECK-T2: ldrsh{{.*}}, #2]!
+; CHECK-T2: ldr{{.*}}, #4]!
+
+define void @mul_16x16_2d(i16* nocapture readonly %A, i16** nocapture readonly %B, i32** nocapture readonly %C, i32 %N, i32 %M) {
+entry:
+ %cmp24 = icmp eq i32 %N, 0
+ %cmp222 = icmp eq i32 %M, 0
+ %or.cond = or i1 %cmp24, %cmp222
+ br i1 %or.cond, label %for.cond.cleanup, label %for.cond1.preheader.us.preheader
+
+for.cond1.preheader.us.preheader: ; preds = %entry
+ %tmp = add i32 %M, -1
+ %xtraiter = and i32 %M, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ %unroll_iter = sub i32 %M, %xtraiter
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br label %for.cond1.preheader.us
+
+for.cond1.preheader.us: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.us.preheader
+ %i.025.us = phi i32 [ %inc11.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
+ %arrayidx.us = getelementptr inbounds i16, i16* %A, i32 %i.025.us
+ %tmp2 = load i16, i16* %arrayidx.us, align 2
+ %conv.us = sext i16 %tmp2 to i32
+ %arrayidx5.us = getelementptr inbounds i16*, i16** %B, i32 %i.025.us
+ %tmp3 = load i16*, i16** %arrayidx5.us, align 4
+ %arrayidx8.us = getelementptr inbounds i32*, i32** %C, i32 %i.025.us
+ %tmp4 = load i32*, i32** %arrayidx8.us, align 4
+ br i1 %tmp1, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.body4.us: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %j.023.us = phi i32 [ %inc.us.3, %for.body4.us ], [ 0, %for.cond1.preheader.us ]
+ %niter = phi i32 [ %niter.nsub.3, %for.body4.us ], [ %unroll_iter, %for.cond1.preheader.us ]
+ %arrayidx6.us = getelementptr inbounds i16, i16* %tmp3, i32 %j.023.us
+ %tmp5 = load i16, i16* %arrayidx6.us, align 2
+ %conv7.us = sext i16 %tmp5 to i32
+ %mul.us = mul nsw i32 %conv7.us, %conv.us
+ %arrayidx9.us = getelementptr inbounds i32, i32* %tmp4, i32 %j.023.us
+ %tmp6 = load i32, i32* %arrayidx9.us, align 4
+ %add.us = add nsw i32 %tmp6, %mul.us
+ store i32 %add.us, i32* %arrayidx9.us, align 4
+ %inc.us = or i32 %j.023.us, 1
+ %arrayidx6.us.1 = getelementptr inbounds i16, i16* %tmp3, i32 %inc.us
+ %tmp7 = load i16, i16* %arrayidx6.us.1, align 2
+ %conv7.us.1 = sext i16 %tmp7 to i32
+ %mul.us.1 = mul nsw i32 %conv7.us.1, %conv.us
+ %arrayidx9.us.1 = getelementptr inbounds i32, i32* %tmp4, i32 %inc.us
+ %tmp8 = load i32, i32* %arrayidx9.us.1, align 4
+ %add.us.1 = add nsw i32 %tmp8, %mul.us.1
+ store i32 %add.us.1, i32* %arrayidx9.us.1, align 4
+ %inc.us.1 = or i32 %j.023.us, 2
+ %arrayidx6.us.2 = getelementptr inbounds i16, i16* %tmp3, i32 %inc.us.1
+ %tmp9 = load i16, i16* %arrayidx6.us.2, align 2
+ %conv7.us.2 = sext i16 %tmp9 to i32
+ %mul.us.2 = mul nsw i32 %conv7.us.2, %conv.us
+ %arrayidx9.us.2 = getelementptr inbounds i32, i32* %tmp4, i32 %inc.us.1
+ %tmp10 = load i32, i32* %arrayidx9.us.2, align 4
+ %add.us.2 = add nsw i32 %tmp10, %mul.us.2
+ store i32 %add.us.2, i32* %arrayidx9.us.2, align 4
+ %inc.us.2 = or i32 %j.023.us, 3
+ %arrayidx6.us.3 = getelementptr inbounds i16, i16* %tmp3, i32 %inc.us.2
+ %tmp11 = load i16, i16* %arrayidx6.us.3, align 2
+ %conv7.us.3 = sext i16 %tmp11 to i32
+ %mul.us.3 = mul nsw i32 %conv7.us.3, %conv.us
+ %arrayidx9.us.3 = getelementptr inbounds i32, i32* %tmp4, i32 %inc.us.2
+ %tmp12 = load i32, i32* %arrayidx9.us.3, align 4
+ %add.us.3 = add nsw i32 %tmp12, %mul.us.3
+ store i32 %add.us.3, i32* %arrayidx9.us.3, align 4
+ %inc.us.3 = add i32 %j.023.us, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %j.023.us.unr = phi i32 [ 0, %for.cond1.preheader.us ], [ %inc.us.3, %for.body4.us ]
+ br i1 %lcmp.mod, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.body4.us.epil: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %j.023.us.epil = phi i32 [ %inc.us.epil, %for.body4.us.epil ], [ %j.023.us.unr, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body4.us.epil ], [ %xtraiter, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %arrayidx6.us.epil = getelementptr inbounds i16, i16* %tmp3, i32 %j.023.us.epil
+ %tmp13 = load i16, i16* %arrayidx6.us.epil, align 2
+ %conv7.us.epil = sext i16 %tmp13 to i32
+ %mul.us.epil = mul nsw i32 %conv7.us.epil, %conv.us
+ %arrayidx9.us.epil = getelementptr inbounds i32, i32* %tmp4, i32 %j.023.us.epil
+ %tmp14 = load i32, i32* %arrayidx9.us.epil, align 4
+ %add.us.epil = add nsw i32 %tmp14, %mul.us.epil
+ store i32 %add.us.epil, i32* %arrayidx9.us.epil, align 4
+ %inc.us.epil = add nuw i32 %j.023.us.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.cond1.for.cond.cleanup3_crit_edge.us: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %inc11.us = add nuw i32 %i.025.us, 1
+ %exitcond28 = icmp eq i32 %inc11.us, %N
+ br i1 %exitcond28, label %for.cond.cleanup, label %for.cond1.preheader.us
+
+for.cond.cleanup: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %entry
+ ret void
+}
+
+; CHECK-LABEL: mac_8x8_2d
+; CHECK: @ %for.body4.us
+
+; CHECK-BASE: ldrb{{.*}}
+; CHECK-BASE: ldrb{{.*}}, #3]
+; CHECK-BASE: str{{.*}}, lsl #2]
+; CHECK-BASE: ldrb{{.*}}
+; CHECK-BASE: ldrb{{.*}}, #4]!
+; CHECK-BASE: str{{.*}}, lsl #2]
+; CHECK-BASE: ldrb{{.*}}
+; CHECK-BASE: ldrb{{.*}}, #1]
+; CHECK-BASE: str{{.*}}, lsl #2]
+; CHECK-BASE: ldrb{{.*}}
+; CHECK-BASE: ldrb{{.*}}, #2]
+; CHECK-BASE: str{{.*}}, lsl #2]
+
+; CHECK-COMPLEX: ldrb{{.*}}
+; CHECK-COMPLEX: ldrb{{.*}}
+; CHECK-COMPLEX: str{{.*}}, lsl #2]
+; CHECK-COMPLEX: ldrb{{.*}}
+; CHECK-COMPLEX: ldrb{{.*}}, #1]
+; CHECK-COMPLEX: str{{.*}}, lsl #2]
+; CHECK-COMPLEX: ldrb{{.*}}
+; CHECK-COMPLEX: ldrb{{.*}}, #2]
+; CHECK-COMPLEX: str{{.*}}, lsl #2]
+; CHECK-COMPLEX: ldrb{{.*}}
+; CHECK-COMPLEX: ldrb{{.*}}, #3]
+; CHECK-COMPLEX: str{{.*}}, lsl #2]
+
+; DISABLED-NOT: ldr{{.*}}]!
+; DISABLED-NOT: str{{.*}}]!
+
+; CHECK-T2: @ %for.body4.us.epil
+; CHECK-T2: ldrb{{.*}}, #1]!
+
+define void @mac_8x8_2d(i8* nocapture readonly %A, i8** nocapture readonly %B, i32* nocapture %C, i32 %N, i32 %M) {
+entry:
+ %cmp22 = icmp eq i32 %N, 0
+ %cmp220 = icmp eq i32 %M, 0
+ %or.cond = or i1 %cmp22, %cmp220
+ br i1 %or.cond, label %for.cond.cleanup, label %for.cond1.preheader.us.preheader
+
+for.cond1.preheader.us.preheader: ; preds = %entry
+ %tmp = add i32 %M, -1
+ %xtraiter = and i32 %M, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ %unroll_iter = sub i32 %M, %xtraiter
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br label %for.cond1.preheader.us
+
+for.cond1.preheader.us: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.us.preheader
+ %i.023.us = phi i32 [ %inc10.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
+ %arrayidx.us = getelementptr inbounds i8, i8* %A, i32 %i.023.us
+ %arrayidx5.us = getelementptr inbounds i8*, i8** %B, i32 %i.023.us
+ %arrayidx8.us = getelementptr inbounds i32, i32* %C, i32 %i.023.us
+ %.pre = load i8*, i8** %arrayidx5.us, align 4
+ %.pre28 = load i32, i32* %arrayidx8.us, align 4
+ br i1 %tmp1, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.body4.us: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %tmp2 = phi i32 [ %add.us.3, %for.body4.us ], [ %.pre28, %for.cond1.preheader.us ]
+ %j.021.us = phi i32 [ %inc.us.3, %for.body4.us ], [ 0, %for.cond1.preheader.us ]
+ %niter = phi i32 [ %niter.nsub.3, %for.body4.us ], [ %unroll_iter, %for.cond1.preheader.us ]
+ %tmp3 = load i8, i8* %arrayidx.us, align 1
+ %conv.us = zext i8 %tmp3 to i32
+ %arrayidx6.us = getelementptr inbounds i8, i8* %.pre, i32 %j.021.us
+ %tmp4 = load i8, i8* %arrayidx6.us, align 1
+ %conv7.us = zext i8 %tmp4 to i32
+ %mul.us = mul nuw nsw i32 %conv7.us, %conv.us
+ %add.us = add nsw i32 %mul.us, %tmp2
+ store i32 %add.us, i32* %arrayidx8.us, align 4
+ %inc.us = or i32 %j.021.us, 1
+ %tmp5 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.1 = zext i8 %tmp5 to i32
+ %arrayidx6.us.1 = getelementptr inbounds i8, i8* %.pre, i32 %inc.us
+ %tmp6 = load i8, i8* %arrayidx6.us.1, align 1
+ %conv7.us.1 = zext i8 %tmp6 to i32
+ %mul.us.1 = mul nuw nsw i32 %conv7.us.1, %conv.us.1
+ %add.us.1 = add nsw i32 %mul.us.1, %add.us
+ store i32 %add.us.1, i32* %arrayidx8.us, align 4
+ %inc.us.1 = or i32 %j.021.us, 2
+ %tmp7 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.2 = zext i8 %tmp7 to i32
+ %arrayidx6.us.2 = getelementptr inbounds i8, i8* %.pre, i32 %inc.us.1
+ %tmp8 = load i8, i8* %arrayidx6.us.2, align 1
+ %conv7.us.2 = zext i8 %tmp8 to i32
+ %mul.us.2 = mul nuw nsw i32 %conv7.us.2, %conv.us.2
+ %add.us.2 = add nsw i32 %mul.us.2, %add.us.1
+ store i32 %add.us.2, i32* %arrayidx8.us, align 4
+ %inc.us.2 = or i32 %j.021.us, 3
+ %tmp9 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.3 = zext i8 %tmp9 to i32
+ %arrayidx6.us.3 = getelementptr inbounds i8, i8* %.pre, i32 %inc.us.2
+ %tmp10 = load i8, i8* %arrayidx6.us.3, align 1
+ %conv7.us.3 = zext i8 %tmp10 to i32
+ %mul.us.3 = mul nuw nsw i32 %conv7.us.3, %conv.us.3
+ %add.us.3 = add nsw i32 %mul.us.3, %add.us.2
+ store i32 %add.us.3, i32* %arrayidx8.us, align 4
+ %inc.us.3 = add i32 %j.021.us, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %.unr = phi i32 [ %.pre28, %for.cond1.preheader.us ], [ %add.us.3, %for.body4.us ]
+ %j.021.us.unr = phi i32 [ 0, %for.cond1.preheader.us ], [ %inc.us.3, %for.body4.us ]
+ br i1 %lcmp.mod, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.body4.us.epil: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %tmp11 = phi i32 [ %add.us.epil, %for.body4.us.epil ], [ %.unr, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %j.021.us.epil = phi i32 [ %inc.us.epil, %for.body4.us.epil ], [ %j.021.us.unr, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body4.us.epil ], [ %xtraiter, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %tmp12 = load i8, i8* %arrayidx.us, align 1
+ %conv.us.epil = zext i8 %tmp12 to i32
+ %arrayidx6.us.epil = getelementptr inbounds i8, i8* %.pre, i32 %j.021.us.epil
+ %tmp13 = load i8, i8* %arrayidx6.us.epil, align 1
+ %conv7.us.epil = zext i8 %tmp13 to i32
+ %mul.us.epil = mul nuw nsw i32 %conv7.us.epil, %conv.us.epil
+ %add.us.epil = add nsw i32 %mul.us.epil, %tmp11
+ store i32 %add.us.epil, i32* %arrayidx8.us, align 4
+ %inc.us.epil = add nuw i32 %j.021.us.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.cond1.for.cond.cleanup3_crit_edge.us: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %inc10.us = add nuw i32 %i.023.us, 1
+ %exitcond26 = icmp eq i32 %inc10.us, %N
+ br i1 %exitcond26, label %for.cond.cleanup, label %for.cond1.preheader.us
+
+for.cond.cleanup: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %entry
+ ret void
+}
+
+; CHECK-LABEL: mac_16x16_2d
+; CHECK: @ %for.body4.us
+
+; CHECK-BASE: ldrsh{{.*}}, #8]!
+; CHECK-BASE: ldrsh{{.*}}, #2]
+; CHECK-BASE: ldrsh{{.*}}, #4]
+; CHECK-BASE: ldrsh{{.*}}, #6]
+
+; CHECK-COMPLEX: ldrsh{{.*}}, lsl #1]
+; CHECK-COMPLEX: ldrsh{{.*}}, #2]
+; CHECK-COMPLEX: ldrsh{{.*}}, #4]
+; CHECK-COMPLEX: ldrsh{{.*}}, #6]
+
+; DISABLED-NOT: ldr{{.*}}]!
+
+; CHECK-T2: @ %for.body4.us.epil
+; CHECK-T2: ldrsh{{.*}}, #2]!
+
+define void @mac_16x16_2d(i16* nocapture readonly %A, i16** nocapture readonly %B, i32* nocapture %C, i32 %N, i32 %M) {
+entry:
+ %cmp23 = icmp eq i32 %N, 0
+ %cmp220 = icmp eq i32 %M, 0
+ %or.cond = or i1 %cmp23, %cmp220
+ br i1 %or.cond, label %for.cond.cleanup, label %for.cond1.preheader.us.preheader
+
+for.cond1.preheader.us.preheader: ; preds = %entry
+ %tmp = add i32 %M, -1
+ %xtraiter = and i32 %M, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ %unroll_iter = sub i32 %M, %xtraiter
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br label %for.cond1.preheader.us
+
+for.cond1.preheader.us: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %for.cond1.preheader.us.preheader
+ %i.024.us = phi i32 [ %inc10.us, %for.cond1.for.cond.cleanup3_crit_edge.us ], [ 0, %for.cond1.preheader.us.preheader ]
+ %arrayidx.us = getelementptr inbounds i16, i16* %A, i32 %i.024.us
+ %tmp2 = load i16, i16* %arrayidx.us, align 2
+ %conv.us = sext i16 %tmp2 to i32
+ %arrayidx5.us = getelementptr inbounds i16*, i16** %B, i32 %i.024.us
+ %tmp3 = load i16*, i16** %arrayidx5.us, align 4
+ %arrayidx8.us = getelementptr inbounds i32, i32* %C, i32 %i.024.us
+ %arrayidx8.promoted.us = load i32, i32* %arrayidx8.us, align 4
+ br i1 %tmp1, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.body4.us: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %add22.us = phi i32 [ %add.us.3, %for.body4.us ], [ %arrayidx8.promoted.us, %for.cond1.preheader.us ]
+ %j.021.us = phi i32 [ %inc.us.3, %for.body4.us ], [ 0, %for.cond1.preheader.us ]
+ %niter = phi i32 [ %niter.nsub.3, %for.body4.us ], [ %unroll_iter, %for.cond1.preheader.us ]
+ %arrayidx6.us = getelementptr inbounds i16, i16* %tmp3, i32 %j.021.us
+ %tmp4 = load i16, i16* %arrayidx6.us, align 2
+ %conv7.us = sext i16 %tmp4 to i32
+ %mul.us = mul nsw i32 %conv7.us, %conv.us
+ %add.us = add nsw i32 %mul.us, %add22.us
+ %inc.us = or i32 %j.021.us, 1
+ %arrayidx6.us.1 = getelementptr inbounds i16, i16* %tmp3, i32 %inc.us
+ %tmp5 = load i16, i16* %arrayidx6.us.1, align 2
+ %conv7.us.1 = sext i16 %tmp5 to i32
+ %mul.us.1 = mul nsw i32 %conv7.us.1, %conv.us
+ %add.us.1 = add nsw i32 %mul.us.1, %add.us
+ %inc.us.1 = or i32 %j.021.us, 2
+ %arrayidx6.us.2 = getelementptr inbounds i16, i16* %tmp3, i32 %inc.us.1
+ %tmp6 = load i16, i16* %arrayidx6.us.2, align 2
+ %conv7.us.2 = sext i16 %tmp6 to i32
+ %mul.us.2 = mul nsw i32 %conv7.us.2, %conv.us
+ %add.us.2 = add nsw i32 %mul.us.2, %add.us.1
+ %inc.us.2 = or i32 %j.021.us, 3
+ %arrayidx6.us.3 = getelementptr inbounds i16, i16* %tmp3, i32 %inc.us.2
+ %tmp7 = load i16, i16* %arrayidx6.us.3, align 2
+ %conv7.us.3 = sext i16 %tmp7 to i32
+ %mul.us.3 = mul nsw i32 %conv7.us.3, %conv.us
+ %add.us.3 = add nsw i32 %mul.us.3, %add.us.2
+ %inc.us.3 = add i32 %j.021.us, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa, label %for.body4.us
+
+for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa: ; preds = %for.body4.us, %for.cond1.preheader.us
+ %add.us.lcssa.ph = phi i32 [ undef, %for.cond1.preheader.us ], [ %add.us.3, %for.body4.us ]
+ %add22.us.unr = phi i32 [ %arrayidx8.promoted.us, %for.cond1.preheader.us ], [ %add.us.3, %for.body4.us ]
+ %j.021.us.unr = phi i32 [ 0, %for.cond1.preheader.us ], [ %inc.us.3, %for.body4.us ]
+ br i1 %lcmp.mod, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.body4.us.epil: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %add22.us.epil = phi i32 [ %add.us.epil, %for.body4.us.epil ], [ %add22.us.unr, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %j.021.us.epil = phi i32 [ %inc.us.epil, %for.body4.us.epil ], [ %j.021.us.unr, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body4.us.epil ], [ %xtraiter, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ]
+ %arrayidx6.us.epil = getelementptr inbounds i16, i16* %tmp3, i32 %j.021.us.epil
+ %tmp8 = load i16, i16* %arrayidx6.us.epil, align 2
+ %conv7.us.epil = sext i16 %tmp8 to i32
+ %mul.us.epil = mul nsw i32 %conv7.us.epil, %conv.us
+ %add.us.epil = add nsw i32 %mul.us.epil, %add22.us.epil
+ %inc.us.epil = add nuw i32 %j.021.us.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond1.for.cond.cleanup3_crit_edge.us, label %for.body4.us.epil
+
+for.cond1.for.cond.cleanup3_crit_edge.us: ; preds = %for.body4.us.epil, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa
+ %add.us.lcssa = phi i32 [ %add.us.lcssa.ph, %for.cond1.for.cond.cleanup3_crit_edge.us.unr-lcssa ], [ %add.us.epil, %for.body4.us.epil ]
+ store i32 %add.us.lcssa, i32* %arrayidx8.us, align 4
+ %inc10.us = add nuw i32 %i.024.us, 1
+ %exitcond27 = icmp eq i32 %inc10.us, %N
+ br i1 %exitcond27, label %for.cond.cleanup, label %for.cond1.preheader.us
+
+for.cond.cleanup: ; preds = %for.cond1.for.cond.cleanup3_crit_edge.us, %entry
+ ret void
+}
+
+; CHECK-LABEL: mul32x32_backwards
+; CHECK: @ %for.body
+
+; TODO: post increments for decreasing addresses
+; CHECK-DEFAULT-NOT: ldr{{.*}}]!
+; CHECK-DEFAULT-NOT: str{{.*}}]!
+
+; CHECK-COMPLEX-NOT: ldr{{.*}}]!
+; CHECK-COMPLEX-NOT: str{{.*}}]!
+
+define void @mul32x32_backwards(i32* nocapture %a, i32* nocapture readonly %b, i32* nocapture readonly %c, i32 %N) {
+entry:
+ %i.08 = add i32 %N, -1
+ %cmp9 = icmp sgt i32 %i.08, -1
+ br i1 %cmp9, label %for.body.preheader, label %for.cond.cleanup
+
+for.body.preheader: ; preds = %entry
+ %xtraiter = and i32 %N, 3
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br i1 %lcmp.mod, label %for.body.prol.loopexit, label %for.body.prol
+
+for.body.prol: ; preds = %for.body.prol, %for.body.preheader
+ %i.010.prol = phi i32 [ %i.0.prol, %for.body.prol ], [ %i.08, %for.body.preheader ]
+ %prol.iter = phi i32 [ %prol.iter.sub, %for.body.prol ], [ %xtraiter, %for.body.preheader ]
+ %arrayidx.prol = getelementptr inbounds i32, i32* %b, i32 %i.010.prol
+ %tmp = load i32, i32* %arrayidx.prol, align 4
+ %arrayidx1.prol = getelementptr inbounds i32, i32* %c, i32 %i.010.prol
+ %tmp1 = load i32, i32* %arrayidx1.prol, align 4
+ %mul.prol = mul nsw i32 %tmp1, %tmp
+ %arrayidx2.prol = getelementptr inbounds i32, i32* %a, i32 %i.010.prol
+ store i32 %mul.prol, i32* %arrayidx2.prol, align 4
+ %i.0.prol = add i32 %i.010.prol, -1
+ %prol.iter.sub = add i32 %prol.iter, -1
+ %prol.iter.cmp = icmp eq i32 %prol.iter.sub, 0
+ br i1 %prol.iter.cmp, label %for.body.prol.loopexit, label %for.body.prol
+
+for.body.prol.loopexit: ; preds = %for.body.prol, %for.body.preheader
+ %i.010.unr = phi i32 [ %i.08, %for.body.preheader ], [ %i.0.prol, %for.body.prol ]
+ %tmp2 = icmp ult i32 %i.08, 3
+ br i1 %tmp2, label %for.cond.cleanup, label %for.body
+
+for.cond.cleanup: ; preds = %for.body, %for.body.prol.loopexit, %entry
+ ret void
+
+for.body: ; preds = %for.body, %for.body.prol.loopexit
+ %i.010 = phi i32 [ %i.0.3, %for.body ], [ %i.010.unr, %for.body.prol.loopexit ]
+ %arrayidx = getelementptr inbounds i32, i32* %b, i32 %i.010
+ %tmp3 = load i32, i32* %arrayidx, align 4
+ %arrayidx1 = getelementptr inbounds i32, i32* %c, i32 %i.010
+ %tmp4 = load i32, i32* %arrayidx1, align 4
+ %mul = mul nsw i32 %tmp4, %tmp3
+ %arrayidx2 = getelementptr inbounds i32, i32* %a, i32 %i.010
+ store i32 %mul, i32* %arrayidx2, align 4
+ %i.0 = add i32 %i.010, -1
+ %arrayidx.1 = getelementptr inbounds i32, i32* %b, i32 %i.0
+ %tmp5 = load i32, i32* %arrayidx.1, align 4
+ %arrayidx1.1 = getelementptr inbounds i32, i32* %c, i32 %i.0
+ %tmp6 = load i32, i32* %arrayidx1.1, align 4
+ %mul.1 = mul nsw i32 %tmp6, %tmp5
+ %arrayidx2.1 = getelementptr inbounds i32, i32* %a, i32 %i.0
+ store i32 %mul.1, i32* %arrayidx2.1, align 4
+ %i.0.1 = add i32 %i.010, -2
+ %arrayidx.2 = getelementptr inbounds i32, i32* %b, i32 %i.0.1
+ %tmp7 = load i32, i32* %arrayidx.2, align 4
+ %arrayidx1.2 = getelementptr inbounds i32, i32* %c, i32 %i.0.1
+ %tmp8 = load i32, i32* %arrayidx1.2, align 4
+ %mul.2 = mul nsw i32 %tmp8, %tmp7
+ %arrayidx2.2 = getelementptr inbounds i32, i32* %a, i32 %i.0.1
+ store i32 %mul.2, i32* %arrayidx2.2, align 4
+ %i.0.2 = add i32 %i.010, -3
+ %arrayidx.3 = getelementptr inbounds i32, i32* %b, i32 %i.0.2
+ %tmp9 = load i32, i32* %arrayidx.3, align 4
+ %arrayidx1.3 = getelementptr inbounds i32, i32* %c, i32 %i.0.2
+ %tmp10 = load i32, i32* %arrayidx1.3, align 4
+ %mul.3 = mul nsw i32 %tmp10, %tmp9
+ %arrayidx2.3 = getelementptr inbounds i32, i32* %a, i32 %i.0.2
+ store i32 %mul.3, i32* %arrayidx2.3, align 4
+ %i.0.3 = add i32 %i.010, -4
+ %cmp.3 = icmp sgt i32 %i.0.3, -1
+ br i1 %cmp.3, label %for.body, label %for.cond.cleanup
+}
+
+; CHECK-LABEL: mul32x32_forwards
+; CHECK: @ %for.body
+
+; CHECK-DEFAULT: ldr{{.*}}, #4]
+; CHECK-DEFAULT: ldr{{.*}}, #4]
+; CHECK-DEFAULT: str{{.*}}, #4]
+; CHECK-DEFAULT: ldr{{.*}}, #8]
+; CHECK-DEFAULT: ldr{{.*}}, #8]
+; CHECK-DEFAULT: str{{.*}}, #8]
+; CHECK-DEFAULT: ldr{{.*}}, #12]
+; CHECK-DEFAULT: ldr{{.*}}, #12]
+; CHECK-DEFAULT: str{{.*}}, #12]
+
+; CHECK-COMPLEX: ldr{{.*}}, #16]!
+; CHECK-COMPLEX: ldr{{.*}}, #16]!
+; CHECK-COMPLEX: str{{.*}}, #16]!
+
+; CHECK-T2: @ %for.body.epil
+; CHECK-T2: ldr{{.*}}, #4]!
+; CHECK-T2: ldr{{.*}}, #4]!
+; CHECK-T2: str{{.*}}, #4]!
+
+define void @mul32x32_forwards(i32* nocapture %a, i32* nocapture readonly %b, i32* nocapture readonly %c, i32 %N) {
+entry:
+ %cmp8 = icmp eq i32 %N, 0
+ br i1 %cmp8, label %for.cond.cleanup, label %for.body.preheader
+
+for.body.preheader: ; preds = %entry
+ %tmp = add i32 %N, -1
+ %xtraiter = and i32 %N, 3
+ %tmp1 = icmp ult i32 %tmp, 3
+ br i1 %tmp1, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body.preheader.new
+
+for.body.preheader.new: ; preds = %for.body.preheader
+ %unroll_iter = sub i32 %N, %xtraiter
+ br label %for.body
+
+for.cond.cleanup.loopexit.unr-lcssa: ; preds = %for.body, %for.body.preheader
+ %i.09.unr = phi i32 [ 0, %for.body.preheader ], [ %inc.3, %for.body ]
+ %lcmp.mod = icmp eq i32 %xtraiter, 0
+ br i1 %lcmp.mod, label %for.cond.cleanup, label %for.body.epil
+
+for.body.epil: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa
+ %i.09.epil = phi i32 [ %inc.epil, %for.body.epil ], [ %i.09.unr, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %epil.iter = phi i32 [ %epil.iter.sub, %for.body.epil ], [ %xtraiter, %for.cond.cleanup.loopexit.unr-lcssa ]
+ %arrayidx.epil = getelementptr inbounds i32, i32* %b, i32 %i.09.epil
+ %tmp2 = load i32, i32* %arrayidx.epil, align 4
+ %arrayidx1.epil = getelementptr inbounds i32, i32* %c, i32 %i.09.epil
+ %tmp3 = load i32, i32* %arrayidx1.epil, align 4
+ %mul.epil = mul nsw i32 %tmp3, %tmp2
+ %arrayidx2.epil = getelementptr inbounds i32, i32* %a, i32 %i.09.epil
+ store i32 %mul.epil, i32* %arrayidx2.epil, align 4
+ %inc.epil = add nuw nsw i32 %i.09.epil, 1
+ %epil.iter.sub = add i32 %epil.iter, -1
+ %epil.iter.cmp = icmp eq i32 %epil.iter.sub, 0
+ br i1 %epil.iter.cmp, label %for.cond.cleanup, label %for.body.epil
+
+for.cond.cleanup: ; preds = %for.body.epil, %for.cond.cleanup.loopexit.unr-lcssa, %entry
+ ret void
+
+for.body: ; preds = %for.body, %for.body.preheader.new
+ %i.09 = phi i32 [ 0, %for.body.preheader.new ], [ %inc.3, %for.body ]
+ %niter = phi i32 [ %unroll_iter, %for.body.preheader.new ], [ %niter.nsub.3, %for.body ]
+ %arrayidx = getelementptr inbounds i32, i32* %b, i32 %i.09
+ %tmp4 = load i32, i32* %arrayidx, align 4
+ %arrayidx1 = getelementptr inbounds i32, i32* %c, i32 %i.09
+ %tmp5 = load i32, i32* %arrayidx1, align 4
+ %mul = mul nsw i32 %tmp5, %tmp4
+ %arrayidx2 = getelementptr inbounds i32, i32* %a, i32 %i.09
+ store i32 %mul, i32* %arrayidx2, align 4
+ %inc = or i32 %i.09, 1
+ %arrayidx.1 = getelementptr inbounds i32, i32* %b, i32 %inc
+ %tmp6 = load i32, i32* %arrayidx.1, align 4
+ %arrayidx1.1 = getelementptr inbounds i32, i32* %c, i32 %inc
+ %tmp7 = load i32, i32* %arrayidx1.1, align 4
+ %mul.1 = mul nsw i32 %tmp7, %tmp6
+ %arrayidx2.1 = getelementptr inbounds i32, i32* %a, i32 %inc
+ store i32 %mul.1, i32* %arrayidx2.1, align 4
+ %inc.1 = or i32 %i.09, 2
+ %arrayidx.2 = getelementptr inbounds i32, i32* %b, i32 %inc.1
+ %tmp8 = load i32, i32* %arrayidx.2, align 4
+ %arrayidx1.2 = getelementptr inbounds i32, i32* %c, i32 %inc.1
+ %tmp9 = load i32, i32* %arrayidx1.2, align 4
+ %mul.2 = mul nsw i32 %tmp9, %tmp8
+ %arrayidx2.2 = getelementptr inbounds i32, i32* %a, i32 %inc.1
+ store i32 %mul.2, i32* %arrayidx2.2, align 4
+ %inc.2 = or i32 %i.09, 3
+ %arrayidx.3 = getelementptr inbounds i32, i32* %b, i32 %inc.2
+ %tmp10 = load i32, i32* %arrayidx.3, align 4
+ %arrayidx1.3 = getelementptr inbounds i32, i32* %c, i32 %inc.2
+ %tmp11 = load i32, i32* %arrayidx1.3, align 4
+ %mul.3 = mul nsw i32 %tmp11, %tmp10
+ %arrayidx2.3 = getelementptr inbounds i32, i32* %a, i32 %inc.2
+ store i32 %mul.3, i32* %arrayidx2.3, align 4
+ %inc.3 = add nuw nsw i32 %i.09, 4
+ %niter.nsub.3 = add i32 %niter, -4
+ %niter.ncmp.3 = icmp eq i32 %niter.nsub.3, 0
+ br i1 %niter.ncmp.3, label %for.cond.cleanup.loopexit.unr-lcssa, label %for.body
+}
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