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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 | b00f236b03ea57520f94823780896ebdbc5d8bdc (patch) | |
| tree | d023b7481f8606f36efb2bf30f796d830a7eb2f3 /test | |
| parent | a43d46f523dff4b784ee28a3b196a065a15d90f2 (diff) | |
| download | llvm-b00f236b03ea57520f94823780896ebdbc5d8bdc.tar.gz llvm-b00f236b03ea57520f94823780896ebdbc5d8bdc.tar.bz2 llvm-b00f236b03ea57520f94823780896ebdbc5d8bdc.tar.xz | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84271 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/codegen-prepare-extload.ll | 20 | ||||
| -rw-r--r-- | test/CodeGen/X86/stack-color-with-reg.ll | 4 |
2 files changed, 22 insertions, 2 deletions
diff --git a/test/CodeGen/X86/codegen-prepare-extload.ll b/test/CodeGen/X86/codegen-prepare-extload.ll new file mode 100644 index 0000000000..9f57d53178 --- /dev/null +++ b/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/test/CodeGen/X86/stack-color-with-reg.ll b/test/CodeGen/X86/stack-color-with-reg.ll index 672f77eef0..0f32a50fc5 100644 --- a/test/CodeGen/X86/stack-color-with-reg.ll +++ b/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 |