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| author | Roman Divacky <rdivacky@FreeBSD.org> | 2010-02-16 09:30:23 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@FreeBSD.org> | 2010-02-16 09:30:23 +0000 |
| commit | 6fe5c7aa327e188b7176daa5595bbf075a6b94df (patch) | |
| tree | 4cfca640904d1896e25032757a61f8959c066919 /test/CodeGen/X86/loop-strength-reduce4.ll | |
| parent | 989df958a10f0beb90b89ccadd8351cbe51d90b1 (diff) | |
| download | src-test-6fe5c7aa327e188b7176daa5595bbf075a6b94df.tar.gz src-test-6fe5c7aa327e188b7176daa5595bbf075a6b94df.zip | |
Notes
Diffstat (limited to 'test/CodeGen/X86/loop-strength-reduce4.ll')
| -rw-r--r-- | test/CodeGen/X86/loop-strength-reduce4.ll | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/test/CodeGen/X86/loop-strength-reduce4.ll b/test/CodeGen/X86/loop-strength-reduce4.ll index 07e46eca75e9f..6c0eb8c0df93d 100644 --- a/test/CodeGen/X86/loop-strength-reduce4.ll +++ b/test/CodeGen/X86/loop-strength-reduce4.ll @@ -1,5 +1,19 @@ -; RUN: llc < %s -march=x86 | grep cmp | grep 64 -; RUN: llc < %s -march=x86 | not grep inc +; RUN: llc < %s -march=x86 -relocation-model=static -mtriple=i686-apple-darwin | FileCheck %s -check-prefix=STATIC +; RUN: llc < %s -march=x86 -relocation-model=pic | FileCheck %s -check-prefix=PIC + +; By starting the IV at -64 instead of 0, a cmp is eliminated, +; as the flags from the add can be used directly. + +; STATIC: movl $-64, %ecx + +; STATIC: movl %eax, _state+76(%ecx) +; STATIC: addl $16, %ecx +; STATIC: jne + +; In PIC mode the symbol can't be folded, so the change-compare-stride +; trick applies. + +; PIC: cmpl $64 @state = external global [0 x i32] ; <[0 x i32]*> [#uses=4] @S = external global [0 x i32] ; <[0 x i32]*> [#uses=4] |