diff options
Diffstat (limited to 'test/CodeGen/ARM/machine-cse-cmp.ll')
| -rw-r--r-- | test/CodeGen/ARM/machine-cse-cmp.ll | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/test/CodeGen/ARM/machine-cse-cmp.ll b/test/CodeGen/ARM/machine-cse-cmp.ll index c77402f3bc..f566974c23 100644 --- a/test/CodeGen/ARM/machine-cse-cmp.ll +++ b/test/CodeGen/ARM/machine-cse-cmp.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -march=arm | FileCheck %s +; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s ;rdar://8003725 @G1 = external global i32 @@ -6,6 +6,7 @@ define i32 @f1(i32 %cond1, i32 %x1, i32 %x2, i32 %x3) { entry: +; CHECK: f1: ; CHECK: cmp ; CHECK: moveq ; CHECK-NOT: cmp @@ -16,3 +17,31 @@ entry: %tmp4 = add i32 %tmp2, %tmp3 ret i32 %tmp4 } + +@foo = external global i32 +@bar = external global [250 x i8], align 1 + +; CSE of cmp across BB boundary +; rdar://10660865 +define void @f2() nounwind ssp { +entry: +; CHECK: f2: +; CHECK: cmp +; CHECK: poplt +; CHECK-NOT: cmp +; CHECK: movle + %0 = load i32* @foo, align 4 + %cmp28 = icmp sgt i32 %0, 0 + br i1 %cmp28, label %for.body.lr.ph, label %for.cond1.preheader + +for.body.lr.ph: ; preds = %entry + %1 = icmp sgt i32 %0, 1 + %smax = select i1 %1, i32 %0, i32 1 + call void @llvm.memset.p0i8.i32(i8* getelementptr inbounds ([250 x i8]* @bar, i32 0, i32 0), i8 0, i32 %smax, i32 1, i1 false) + unreachable + +for.cond1.preheader: ; preds = %entry + ret void +} + +declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind |