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| author | Bill Wendling <isanbard@gmail.com> | 2008-08-19 23:09:18 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2008-08-19 23:09:18 +0000 |
| commit | 108ecf397578946a5f34fc90f22cdd0c9ca4448a (patch) | |
| tree | e869831aa6509ecacf3aa2406d6c572e7da6397d /test | |
| parent | d3aedf445c4c969c2026e3a1cc02265c5eb79a42 (diff) | |
| download | external_llvm-108ecf397578946a5f34fc90f22cdd0c9ca4448a.zip external_llvm-108ecf397578946a5f34fc90f22cdd0c9ca4448a.tar.gz external_llvm-108ecf397578946a5f34fc90f22cdd0c9ca4448a.tar.bz2 | |
Add support for the __sync_sub_and_fetch atomics and friends for X86. The code
was already present, but not hooked up to anything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55018 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/2008-08-19-SubAndFetch.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2008-08-19-SubAndFetch.ll b/test/CodeGen/X86/2008-08-19-SubAndFetch.ll new file mode 100644 index 0000000..00bcdf8 --- /dev/null +++ b/test/CodeGen/X86/2008-08-19-SubAndFetch.ll @@ -0,0 +1,11 @@ +; RUN: llvm-as < %s | llc -march=x86-64 | grep xadd + +@var = external global i64 ; <i64*> [#uses=1] + +define i32 @main() nounwind { +entry: + tail call i64 @llvm.atomic.load.sub.i64.p0i64( i64* @var, i64 1 ) ; <i64>:0 [#uses=0] + unreachable +} + +declare i64 @llvm.atomic.load.sub.i64.p0i64(i64*, i64) nounwind |