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| author | Dan Gohman <gohman@apple.com> | 2009-10-16 20:59:35 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-10-16 20:59:35 +0000 |
| commit | 99429a00fffafe8c7d4d3534cff1c0694cf9c530 (patch) | |
| tree | 61db4c804a362869c9c1cfd08d87bf61399e1020 /llvm/test | |
| parent | 70bf6d61028ee5c12b910f191a3a6113218a4e77 (diff) | |
| download | bcm5719-llvm-99429a00fffafe8c7d4d3534cff1c0694cf9c530.tar.gz bcm5719-llvm-99429a00fffafe8c7d4d3534cff1c0694cf9c530.zip | |
Move zext and sext casts fed by loads into the same block as the
load, to help SelectionDAG fold them into the loads, unless
conditions are unfavorable.
llvm-svn: 84271
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/CodeGen/X86/codegen-prepare-extload.ll | 20 | ||||
| -rw-r--r-- | llvm/test/CodeGen/X86/stack-color-with-reg.ll | 4 |
2 files changed, 22 insertions, 2 deletions
diff --git a/llvm/test/CodeGen/X86/codegen-prepare-extload.ll b/llvm/test/CodeGen/X86/codegen-prepare-extload.ll new file mode 100644 index 00000000000..9f57d53178f --- /dev/null +++ b/llvm/test/CodeGen/X86/codegen-prepare-extload.ll @@ -0,0 +1,20 @@ +; RUN: llc < %s -march=x86-64 | FileCheck %s +; rdar://7304838 + +; CodeGenPrepare should move the zext into the block with the load +; so that SelectionDAG can select it with the load. + +; CHECK: movzbl (%rdi), %eax + +define void @foo(i8* %p, i32* %q) { +entry: + %t = load i8* %p + %a = icmp slt i8 %t, 20 + br i1 %a, label %true, label %false +true: + %s = zext i8 %t to i32 + store i32 %s, i32* %q + ret void +false: + ret void +} diff --git a/llvm/test/CodeGen/X86/stack-color-with-reg.ll b/llvm/test/CodeGen/X86/stack-color-with-reg.ll index 672f77eef02..0f32a50fc5b 100644 --- a/llvm/test/CodeGen/X86/stack-color-with-reg.ll +++ b/llvm/test/CodeGen/X86/stack-color-with-reg.ll @@ -1,6 +1,6 @@ ; RUN: llc < %s -mtriple=x86_64-apple-darwin10 -relocation-model=pic -disable-fp-elim -color-ss-with-regs -stats -info-output-file - > %t -; RUN: grep stackcoloring %t | grep "stack slot refs replaced with reg refs" | grep 5 -; RUN: grep asm-printer %t | grep 179 +; RUN: grep stackcoloring %t | grep "stack slot refs replaced with reg refs" | grep 6 +; RUN: grep asm-printer %t | grep 177 type { [62 x %struct.Bitvec*] } ; type %0 type { i8* } ; type %1 |
