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Diffstat (limited to 'test/CodeGen/X86/clz.ll')
| -rw-r--r-- | test/CodeGen/X86/clz.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/X86/clz.ll b/test/CodeGen/X86/clz.ll new file mode 100644 index 0000000..3f27187 --- /dev/null +++ b/test/CodeGen/X86/clz.ll @@ -0,0 +1,26 @@ +; RUN: llc < %s -march=x86 | grep bsr | count 2 +; RUN: llc < %s -march=x86 | grep bsf +; RUN: llc < %s -march=x86 | grep cmov | count 3 + +define i32 @t1(i32 %x) nounwind { + %tmp = tail call i32 @llvm.ctlz.i32( i32 %x ) + ret i32 %tmp +} + +declare i32 @llvm.ctlz.i32(i32) nounwind readnone + +define i32 @t2(i32 %x) nounwind { + %tmp = tail call i32 @llvm.cttz.i32( i32 %x ) + ret i32 %tmp +} + +declare i32 @llvm.cttz.i32(i32) nounwind readnone + +define i16 @t3(i16 %x, i16 %y) nounwind { +entry: + %tmp1 = add i16 %x, %y + %tmp2 = tail call i16 @llvm.ctlz.i16( i16 %tmp1 ) ; <i16> [#uses=1] + ret i16 %tmp2 +} + +declare i16 @llvm.ctlz.i16(i16) nounwind readnone |