| Dan Gohman | 0a06310 | 2009-09-08 23:54:48 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=x86 | grep mul | count 1 |
| 2 | ; RUN: llc < %s -march=x86 | grep add | count 3 |
| Evan Cheng | 00cf793 | 2009-01-27 03:30:42 +0000 | [diff] [blame] | 3 | |
| 4 | define i32 @t1(i32 %a, i32 %b) nounwind readnone { |
| 5 | entry: |
| 6 | %tmp0 = add i32 %b, %a |
| 7 | %tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 2) |
| 8 | %tmp2 = extractvalue { i32, i1 } %tmp1, 0 |
| 9 | ret i32 %tmp2 |
| 10 | } |
| 11 | |
| 12 | define i32 @t2(i32 %a, i32 %b) nounwind readnone { |
| 13 | entry: |
| 14 | %tmp0 = add i32 %b, %a |
| 15 | %tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 4) |
| 16 | %tmp2 = extractvalue { i32, i1 } %tmp1, 0 |
| 17 | ret i32 %tmp2 |
| 18 | } |
| 19 | |
| 20 | declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32) nounwind |