diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2008-10-27 23:21:01 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-10-27 23:21:01 +0000 |
| commit | b3990d5e948769a16d4ee77dbdff8a2bed8fb126 (patch) | |
| tree | 576c709653e9a0f2655487d66bc267a007660b8d /test/CodeGen/X86/2008-10-27-CoalescerBug.ll | |
| parent | 8e7fa916fe87733b3660466b3a1c91d650c473d3 (diff) | |
| download | llvm-b3990d5e948769a16d4ee77dbdff8a2bed8fb126.tar.gz llvm-b3990d5e948769a16d4ee77dbdff8a2bed8fb126.tar.bz2 llvm-b3990d5e948769a16d4ee77dbdff8a2bed8fb126.tar.xz | |
Remove val# defined by a remat'ed def that is now dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58294 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/2008-10-27-CoalescerBug.ll')
| -rw-r--r-- | test/CodeGen/X86/2008-10-27-CoalescerBug.ll | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2008-10-27-CoalescerBug.ll b/test/CodeGen/X86/2008-10-27-CoalescerBug.ll new file mode 100644 index 0000000000..2c8e12fb26 --- /dev/null +++ b/test/CodeGen/X86/2008-10-27-CoalescerBug.ll @@ -0,0 +1,44 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -stats |& not grep {Number of register spills} + +define fastcc void @fourn(double* %data, i32 %isign) nounwind { +entry: + br label %bb + +bb: ; preds = %bb, %entry + %indvar93 = phi i32 [ 0, %entry ], [ %idim.030, %bb ] ; <i32> [#uses=2] + %idim.030 = add i32 %indvar93, 1 ; <i32> [#uses=1] + %0 = add i32 %indvar93, 2 ; <i32> [#uses=1] + %1 = icmp sgt i32 %0, 2 ; <i1> [#uses=1] + br i1 %1, label %bb30.loopexit, label %bb + +bb3: ; preds = %bb30.loopexit, %bb25, %bb3 + %2 = load i32* null, align 4 ; <i32> [#uses=1] + %3 = mul i32 %2, 0 ; <i32> [#uses=1] + %4 = icmp slt i32 0, %3 ; <i1> [#uses=1] + br i1 %4, label %bb18, label %bb3 + +bb18: ; preds = %bb3 + %5 = fdiv double %11, 0.000000e+00 ; <double> [#uses=1] + %6 = tail call double @sin(double %5) nounwind readonly ; <double> [#uses=1] + br label %bb24.preheader + +bb22.preheader: ; preds = %bb24.preheader, %bb22.preheader + br label %bb22.preheader + +bb25: ; preds = %bb24.preheader + %7 = mul double 0.000000e+00, %6 ; <double> [#uses=0] + %8 = add i32 %i3.122100, 0 ; <i32> [#uses=1] + %9 = icmp sgt i32 %8, 0 ; <i1> [#uses=1] + br i1 %9, label %bb3, label %bb24.preheader + +bb24.preheader: ; preds = %bb25, %bb18 + %i3.122100 = or i32 0, 1 ; <i32> [#uses=2] + %10 = icmp slt i32 0, %i3.122100 ; <i1> [#uses=1] + br i1 %10, label %bb25, label %bb22.preheader + +bb30.loopexit: ; preds = %bb + %11 = mul double 0.000000e+00, 0x401921FB54442D1C ; <double> [#uses=1] + br label %bb3 +} + +declare double @sin(double) nounwind readonly |