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Diffstat (limited to 'llvm/test/Transforms/LoopIdiom/struct.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopIdiom/struct.ll | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/llvm/test/Transforms/LoopIdiom/struct.ll b/llvm/test/Transforms/LoopIdiom/struct.ll new file mode 100644 index 00000000000..2828024952e --- /dev/null +++ b/llvm/test/Transforms/LoopIdiom/struct.ll @@ -0,0 +1,221 @@ +; RUN: opt -basicaa -loop-idiom < %s -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" + +target triple = "x86_64-apple-darwin10.0.0" + +%struct.foo = type { i32, i32 } +%struct.foo1 = type { i32, i32, i32 } +%struct.foo2 = type { i32, i16, i16 } + +;void bar1(foo_t *f, unsigned n) { +; for (unsigned i = 0; i < n; ++i) { +; f[i].a = 0; +; f[i].b = 0; +; } +;} +define void @bar1(%struct.foo* %f, i32 %n) nounwind ssp { +entry: + %cmp1 = icmp eq i32 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] + %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 + store i32 0, i32* %a, align 4 + %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 + store i32 0, i32* %b, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body, label %for.end.loopexit + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +; CHECK-LABEL: @bar1( +; CHECK: call void @llvm.memset +; CHECK-NOT: store +} + +;void bar2(foo_t *f, unsigned n) { +; for (unsigned i = 0; i < n; ++i) { +; f[i].b = 0; +; f[i].a = 0; +; } +;} +define void @bar2(%struct.foo* %f, i32 %n) nounwind ssp { +entry: + %cmp1 = icmp eq i32 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] + %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 + store i32 0, i32* %b, align 4 + %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 + store i32 0, i32* %a, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body, label %for.end.loopexit + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +; CHECK-LABEL: @bar2( +; CHECK: call void @llvm.memset +; CHECK-NOT: store +} + +;void bar3(foo_t *f, unsigned n) { +; for (unsigned i = n; i > 0; --i) { +; f[i].a = 0; +; f[i].b = 0; +; } +;} +define void @bar3(%struct.foo* nocapture %f, i32 %n) nounwind ssp { +entry: + %cmp1 = icmp eq i32 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + %0 = zext i32 %n to i64 + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %indvars.iv = phi i64 [ %0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] + %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 + store i32 0, i32* %a, align 4 + %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 + store i32 0, i32* %b, align 4 + %1 = trunc i64 %indvars.iv to i32 + %dec = add i32 %1, -1 + %cmp = icmp eq i32 %dec, 0 + %indvars.iv.next = add nsw i64 %indvars.iv, -1 + br i1 %cmp, label %for.end.loopexit, label %for.body + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +; CHECK-LABEL: @bar3( +; CHECK: call void @llvm.memset +; CHECK-NOT: store +} + +;void bar4(foo_t *f, unsigned n) { +; for (unsigned i = 0; i < n; ++i) { +; f[i].a = 0; +; f[i].b = 1; +; } +;} +define void @bar4(%struct.foo* nocapture %f, i32 %n) nounwind ssp { +entry: + %cmp1 = icmp eq i32 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] + %a = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 0 + store i32 0, i32* %a, align 4 + %b = getelementptr inbounds %struct.foo, %struct.foo* %f, i64 %indvars.iv, i32 1 + store i32 1, i32* %b, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body, label %for.end.loopexit + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +; CHECK-LABEL: @bar4( +; CHECK-NOT: call void @llvm.memset +} + +;void bar5(foo1_t *f, unsigned n) { +; for (unsigned i = 0; i < n; ++i) { +; f[i].a = 0; +; f[i].b = 0; +; } +;} +define void @bar5(%struct.foo1* nocapture %f, i32 %n) nounwind ssp { +entry: + %cmp1 = icmp eq i32 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] + %a = getelementptr inbounds %struct.foo1, %struct.foo1* %f, i64 %indvars.iv, i32 0 + store i32 0, i32* %a, align 4 + %b = getelementptr inbounds %struct.foo1, %struct.foo1* %f, i64 %indvars.iv, i32 1 + store i32 0, i32* %b, align 4 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body, label %for.end.loopexit + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +; CHECK-LABEL: @bar5( +; CHECK-NOT: call void @llvm.memset +} + +;void bar6(foo2_t *f, unsigned n) { +; for (unsigned i = 0; i < n; ++i) { +; f[i].a = 0; +; f[i].b = 0; +; f[i].c = 0; +; } +;} +define void @bar6(%struct.foo2* nocapture %f, i32 %n) nounwind ssp { +entry: + %cmp1 = icmp eq i32 %n, 0 + br i1 %cmp1, label %for.end, label %for.body.preheader + +for.body.preheader: ; preds = %entry + br label %for.body + +for.body: ; preds = %for.body.preheader, %for.body + %indvars.iv = phi i64 [ 0, %for.body.preheader ], [ %indvars.iv.next, %for.body ] + %a = getelementptr inbounds %struct.foo2, %struct.foo2* %f, i64 %indvars.iv, i32 0 + store i32 0, i32* %a, align 4 + %b = getelementptr inbounds %struct.foo2, %struct.foo2* %f, i64 %indvars.iv, i32 1 + store i16 0, i16* %b, align 4 + %c = getelementptr inbounds %struct.foo2, %struct.foo2* %f, i64 %indvars.iv, i32 2 + store i16 0, i16* %c, align 2 + %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 + %lftr.wideiv = trunc i64 %indvars.iv.next to i32 + %exitcond = icmp ne i32 %lftr.wideiv, %n + br i1 %exitcond, label %for.body, label %for.end.loopexit + +for.end.loopexit: ; preds = %for.body + br label %for.end + +for.end: ; preds = %for.end.loopexit, %entry + ret void +; CHECK-LABEL: @bar6( +; CHECK: call void @llvm.memset +; CHECK-NOT: store +} |
