diff options
Diffstat (limited to 'llvm/test/Transforms/LoopVectorize')
| -rw-r--r-- | llvm/test/Transforms/LoopVectorize/X86/illegal-parallel-loop-uniform-write.ll | 141 |
1 files changed, 132 insertions, 9 deletions
diff --git a/llvm/test/Transforms/LoopVectorize/X86/illegal-parallel-loop-uniform-write.ll b/llvm/test/Transforms/LoopVectorize/X86/illegal-parallel-loop-uniform-write.ll index c78bcdd1721..683e857e5f2 100644 --- a/llvm/test/Transforms/LoopVectorize/X86/illegal-parallel-loop-uniform-write.ll +++ b/llvm/test/Transforms/LoopVectorize/X86/illegal-parallel-loop-uniform-write.ll @@ -1,12 +1,9 @@ -; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -S | FileCheck %s target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" -; CHECK-LABEL: @foo( -; CHECK: <4 x i32> -; CHECK: ret void - ; PR15794 ; incorrect addition of llvm.mem.parallel_loop_access metadata is undefined ; behaviour. Vectorizer ignores the memory dependency checks and goes ahead and @@ -21,8 +18,98 @@ target triple = "x86_64-unknown-linux-gnu" ; } ; } -; Function Attrs: nounwind uwtable +; Function Attrs: nounwind uwtable define void @foo(i32* nocapture %a, i32* nocapture %b, i32 %k, i32 %m) #0 { +; CHECK-LABEL: @foo( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[CMP27:%.*]] = icmp sgt i32 [[M:%.*]], 0 +; CHECK-NEXT: br i1 [[CMP27]], label [[FOR_BODY3_LR_PH_US_PREHEADER:%.*]], label [[FOR_END15:%.*]] +; CHECK: for.body3.lr.ph.us.preheader: +; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[M]], -1 +; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 +; CHECK-NEXT: [[TMP2:%.*]] = add i64 [[TMP1]], 1 +; CHECK-NEXT: [[TMP3:%.*]] = zext i32 [[K:%.*]] to i64 +; CHECK-NEXT: br label [[FOR_BODY3_LR_PH_US:%.*]] +; CHECK: for.end.us: +; CHECK-NEXT: [[ARRAYIDX9_US:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 [[INDVARS_IV33:%.*]] +; CHECK-NEXT: [[TMP4:%.*]] = load i32, i32* [[ARRAYIDX9_US]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[ADD10_US:%.*]] = add nsw i32 [[TMP4]], 3 +; CHECK-NEXT: store i32 [[ADD10_US]], i32* [[ARRAYIDX9_US]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[INDVARS_IV_NEXT34:%.*]] = add i64 [[INDVARS_IV33]], 1 +; CHECK-NEXT: [[LFTR_WIDEIV35:%.*]] = trunc i64 [[INDVARS_IV_NEXT34]] to i32 +; CHECK-NEXT: [[EXITCOND36:%.*]] = icmp eq i32 [[LFTR_WIDEIV35]], [[M]] +; CHECK-NEXT: br i1 [[EXITCOND36]], label [[FOR_END15_LOOPEXIT:%.*]], label [[FOR_BODY3_LR_PH_US]], !llvm.loop !2 +; CHECK: for.body3.us: +; CHECK-NEXT: [[INDVARS_IV29:%.*]] = phi i64 [ [[BC_RESUME_VAL:%.*]], [[SCALAR_PH:%.*]] ], [ [[INDVARS_IV_NEXT30:%.*]], [[FOR_BODY3_US:%.*]] ] +; CHECK-NEXT: [[TMP5:%.*]] = trunc i64 [[INDVARS_IV29]] to i32 +; CHECK-NEXT: [[ADD4_US:%.*]] = add i32 [[ADD_US:%.*]], [[TMP5]] +; CHECK-NEXT: [[IDXPROM_US:%.*]] = sext i32 [[ADD4_US]] to i64 +; CHECK-NEXT: [[ARRAYIDX_US:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[IDXPROM_US]] +; CHECK-NEXT: [[TMP6:%.*]] = load i32, i32* [[ARRAYIDX_US]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[ADD5_US:%.*]] = add nsw i32 [[TMP6]], 1 +; CHECK-NEXT: store i32 [[ADD5_US]], i32* [[ARRAYIDX7_US:%.*]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[INDVARS_IV_NEXT30]] = add i64 [[INDVARS_IV29]], 1 +; CHECK-NEXT: [[LFTR_WIDEIV31:%.*]] = trunc i64 [[INDVARS_IV_NEXT30]] to i32 +; CHECK-NEXT: [[EXITCOND32:%.*]] = icmp eq i32 [[LFTR_WIDEIV31]], [[M]] +; CHECK-NEXT: br i1 [[EXITCOND32]], label [[FOR_END_US:%.*]], label [[FOR_BODY3_US]], !llvm.loop !3 +; CHECK: for.body3.lr.ph.us: +; CHECK-NEXT: [[INDVARS_IV33]] = phi i64 [ [[INDVARS_IV_NEXT34]], [[FOR_END_US]] ], [ 0, [[FOR_BODY3_LR_PH_US_PREHEADER]] ] +; CHECK-NEXT: [[TMP7:%.*]] = add i64 [[TMP3]], [[INDVARS_IV33]] +; CHECK-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP7]] to i32 +; CHECK-NEXT: [[TMP9:%.*]] = trunc i64 [[INDVARS_IV33]] to i32 +; CHECK-NEXT: [[ADD_US]] = add i32 [[TMP9]], [[K]] +; CHECK-NEXT: [[ARRAYIDX7_US]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV33]] +; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[TMP2]], 4 +; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH]], label [[VECTOR_SCEVCHECK:%.*]] +; CHECK: vector.scevcheck: +; CHECK-NEXT: [[MUL:%.*]] = call { i32, i1 } @llvm.umul.with.overflow.i32(i32 1, i32 [[TMP0]]) +; CHECK-NEXT: [[MUL_RESULT:%.*]] = extractvalue { i32, i1 } [[MUL]], 0 +; CHECK-NEXT: [[MUL_OVERFLOW:%.*]] = extractvalue { i32, i1 } [[MUL]], 1 +; CHECK-NEXT: [[TMP10:%.*]] = add i32 [[TMP8]], [[MUL_RESULT]] +; CHECK-NEXT: [[TMP11:%.*]] = sub i32 [[TMP8]], [[MUL_RESULT]] +; CHECK-NEXT: [[TMP12:%.*]] = icmp sgt i32 [[TMP11]], [[TMP8]] +; CHECK-NEXT: [[TMP13:%.*]] = icmp slt i32 [[TMP10]], [[TMP8]] +; CHECK-NEXT: [[TMP14:%.*]] = select i1 false, i1 [[TMP12]], i1 [[TMP13]] +; CHECK-NEXT: [[TMP15:%.*]] = or i1 [[TMP14]], [[MUL_OVERFLOW]] +; CHECK-NEXT: [[TMP16:%.*]] = or i1 false, [[TMP15]] +; CHECK-NEXT: br i1 [[TMP16]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] +; CHECK: vector.ph: +; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP2]], 4 +; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP2]], [[N_MOD_VF]] +; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] +; CHECK: vector.body: +; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] +; CHECK-NEXT: [[TMP17:%.*]] = trunc i64 [[INDEX]] to i32 +; CHECK-NEXT: [[TMP18:%.*]] = add i32 [[TMP17]], 0 +; CHECK-NEXT: [[TMP19:%.*]] = add i32 [[ADD_US]], [[TMP18]] +; CHECK-NEXT: [[TMP20:%.*]] = sext i32 [[TMP19]] to i64 +; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds i32, i32* [[A]], i64 [[TMP20]] +; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i32, i32* [[TMP21]], i32 0 +; CHECK-NEXT: [[TMP23:%.*]] = bitcast i32* [[TMP22]] to <4 x i32>* +; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i32>, <4 x i32>* [[TMP23]], align 4 +; CHECK-NEXT: [[TMP24:%.*]] = add nsw <4 x i32> [[WIDE_LOAD]], <i32 1, i32 1, i32 1, i32 1> +; CHECK-NEXT: [[TMP25:%.*]] = extractelement <4 x i32> [[TMP24]], i32 0 +; CHECK-NEXT: store i32 [[TMP25]], i32* [[ARRAYIDX7_US]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[TMP26:%.*]] = extractelement <4 x i32> [[TMP24]], i32 1 +; CHECK-NEXT: store i32 [[TMP26]], i32* [[ARRAYIDX7_US]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[TMP27:%.*]] = extractelement <4 x i32> [[TMP24]], i32 2 +; CHECK-NEXT: store i32 [[TMP27]], i32* [[ARRAYIDX7_US]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[TMP28:%.*]] = extractelement <4 x i32> [[TMP24]], i32 3 +; CHECK-NEXT: store i32 [[TMP28]], i32* [[ARRAYIDX7_US]], align 4, !llvm.mem.parallel_loop_access !0 +; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4 +; CHECK-NEXT: [[TMP29:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] +; CHECK-NEXT: br i1 [[TMP29]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop !5 +; CHECK: middle.block: +; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[TMP2]], [[N_VEC]] +; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END_US]], label [[SCALAR_PH]] +; CHECK: scalar.ph: +; CHECK-NEXT: [[BC_RESUME_VAL]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[FOR_BODY3_LR_PH_US]] ], [ 0, [[VECTOR_SCEVCHECK]] ] +; CHECK-NEXT: br label [[FOR_BODY3_US]] +; CHECK: for.end15.loopexit: +; CHECK-NEXT: br label [[FOR_END15]] +; CHECK: for.end15: +; CHECK-NEXT: ret void +; entry: %cmp27 = icmp sgt i32 %m, 0 br i1 %cmp27, label %for.body3.lr.ph.us, label %for.end15 @@ -66,10 +153,46 @@ for.end15: ; preds = %for.end.us, %entry ; Here we can see the vectorizer does the mem dep checks and decides it is ; unsafe to vectorize. -; CHECK-LABEL: no-par-mem-metadata( -; CHECK-NOT: <4 x i32> -; CHECK: ret void define void @no-par-mem-metadata(i32* nocapture %a, i32* nocapture %b, i32 %k, i32 %m) #0 { +; CHECK-LABEL: @no-par-mem-metadata( +; CHECK-NEXT: entry: +; CHECK-NEXT: [[CMP27:%.*]] = icmp sgt i32 [[M:%.*]], 0 +; CHECK-NEXT: br i1 [[CMP27]], label [[FOR_BODY3_LR_PH_US_PREHEADER:%.*]], label [[FOR_END15:%.*]] +; CHECK: for.body3.lr.ph.us.preheader: +; CHECK-NEXT: br label [[FOR_BODY3_LR_PH_US:%.*]] +; CHECK: for.end.us: +; CHECK-NEXT: [[ARRAYIDX9_US:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 [[INDVARS_IV33:%.*]] +; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[ARRAYIDX9_US]], align 4 +; CHECK-NEXT: [[ADD10_US:%.*]] = add nsw i32 [[TMP0]], 3 +; CHECK-NEXT: store i32 [[ADD10_US]], i32* [[ARRAYIDX9_US]], align 4 +; CHECK-NEXT: [[INDVARS_IV_NEXT34:%.*]] = add i64 [[INDVARS_IV33]], 1 +; CHECK-NEXT: [[LFTR_WIDEIV35:%.*]] = trunc i64 [[INDVARS_IV_NEXT34]] to i32 +; CHECK-NEXT: [[EXITCOND36:%.*]] = icmp eq i32 [[LFTR_WIDEIV35]], [[M]] +; CHECK-NEXT: br i1 [[EXITCOND36]], label [[FOR_END15_LOOPEXIT:%.*]], label [[FOR_BODY3_LR_PH_US]], !llvm.loop !2 +; CHECK: for.body3.us: +; CHECK-NEXT: [[INDVARS_IV29:%.*]] = phi i64 [ 0, [[FOR_BODY3_LR_PH_US]] ], [ [[INDVARS_IV_NEXT30:%.*]], [[FOR_BODY3_US:%.*]] ] +; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[INDVARS_IV29]] to i32 +; CHECK-NEXT: [[ADD4_US:%.*]] = add i32 [[ADD_US:%.*]], [[TMP1]] +; CHECK-NEXT: [[IDXPROM_US:%.*]] = sext i32 [[ADD4_US]] to i64 +; CHECK-NEXT: [[ARRAYIDX_US:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[IDXPROM_US]] +; CHECK-NEXT: [[TMP2:%.*]] = load i32, i32* [[ARRAYIDX_US]], align 4 +; CHECK-NEXT: [[ADD5_US:%.*]] = add nsw i32 [[TMP2]], 1 +; CHECK-NEXT: store i32 [[ADD5_US]], i32* [[ARRAYIDX7_US:%.*]], align 4 +; CHECK-NEXT: [[INDVARS_IV_NEXT30]] = add i64 [[INDVARS_IV29]], 1 +; CHECK-NEXT: [[LFTR_WIDEIV31:%.*]] = trunc i64 [[INDVARS_IV_NEXT30]] to i32 +; CHECK-NEXT: [[EXITCOND32:%.*]] = icmp eq i32 [[LFTR_WIDEIV31]], [[M]] +; CHECK-NEXT: br i1 [[EXITCOND32]], label [[FOR_END_US:%.*]], label [[FOR_BODY3_US]], !llvm.loop !1 +; CHECK: for.body3.lr.ph.us: +; CHECK-NEXT: [[INDVARS_IV33]] = phi i64 [ [[INDVARS_IV_NEXT34]], [[FOR_END_US]] ], [ 0, [[FOR_BODY3_LR_PH_US_PREHEADER]] ] +; CHECK-NEXT: [[TMP3:%.*]] = trunc i64 [[INDVARS_IV33]] to i32 +; CHECK-NEXT: [[ADD_US]] = add i32 [[TMP3]], [[K:%.*]] +; CHECK-NEXT: [[ARRAYIDX7_US]] = getelementptr inbounds i32, i32* [[A]], i64 [[INDVARS_IV33]] +; CHECK-NEXT: br label [[FOR_BODY3_US]] +; CHECK: for.end15.loopexit: +; CHECK-NEXT: br label [[FOR_END15]] +; CHECK: for.end15: +; CHECK-NEXT: ret void +; entry: %cmp27 = icmp sgt i32 %m, 0 br i1 %cmp27, label %for.body3.lr.ph.us, label %for.end15 |
