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| author | Evan Cheng <evan.cheng@apple.com> | 2008-03-08 00:58:38 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-03-08 00:58:38 +0000 |
| commit | 27b7db549e4c5bff4579d209304de5628513edeb (patch) | |
| tree | 57198f184b01fe55ebbca8a70a05c679e1011b97 /test/CodeGen/X86/prefetch.ll | |
| parent | a2fcff4d97c8fecd58cd977c45f1a883bc6ae1c3 (diff) | |
| download | llvm-27b7db549e4c5bff4579d209304de5628513edeb.tar.gz llvm-27b7db549e4c5bff4579d209304de5628513edeb.tar.bz2 llvm-27b7db549e4c5bff4579d209304de5628513edeb.tar.xz | |
Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} and prefetchnta instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48042 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/prefetch.ll')
| -rw-r--r-- | test/CodeGen/X86/prefetch.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/X86/prefetch.ll b/test/CodeGen/X86/prefetch.ll new file mode 100644 index 0000000000..bcc6e3ad3d --- /dev/null +++ b/test/CodeGen/X86/prefetch.ll @@ -0,0 +1,15 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse1 | grep prefetchnta +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse1 | grep prefetcht0 +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse1 | grep prefetcht1 +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse1 | grep prefetcht2 + +define void @t(i8* %ptr) nounwind { +entry: + tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 1 ) + tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 2 ) + tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 3 ) + tail call void @llvm.prefetch( i8* %ptr, i32 0, i32 0 ) + ret void +} + +declare void @llvm.prefetch(i8*, i32, i32) nounwind |