| ; 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 |