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Diffstat (limited to 'test/CodeGen/X86/smul-with-overflow-2.ll')
| -rw-r--r-- | test/CodeGen/X86/smul-with-overflow-2.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/X86/smul-with-overflow-2.ll b/test/CodeGen/X86/smul-with-overflow-2.ll new file mode 100644 index 0000000..7c23adb --- /dev/null +++ b/test/CodeGen/X86/smul-with-overflow-2.ll @@ -0,0 +1,20 @@ +; RUN: llc < %s -march=x86 | grep mul | count 1 +; RUN: llc < %s -march=x86 | grep add | count 3 + +define i32 @t1(i32 %a, i32 %b) nounwind readnone { +entry: + %tmp0 = add i32 %b, %a + %tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 2) + %tmp2 = extractvalue { i32, i1 } %tmp1, 0 + ret i32 %tmp2 +} + +define i32 @t2(i32 %a, i32 %b) nounwind readnone { +entry: + %tmp0 = add i32 %b, %a + %tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 4) + %tmp2 = extractvalue { i32, i1 } %tmp1, 0 + ret i32 %tmp2 +} + +declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32) nounwind |