| Chris Lattner | 2825098 | 2009-10-05 05:26:04 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -constprop -S | FileCheck %s |
| 2 | |
| 3 | %i8i1 = type {i8, i1} |
| 4 | |
| 5 | ;;----------------------------- |
| 6 | ;; uadd |
| 7 | ;;----------------------------- |
| 8 | |
| 9 | define {i8, i1} @uadd_1() nounwind { |
| 10 | entry: |
| 11 | %t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 42, i8 100) |
| 12 | ret {i8, i1} %t |
| 13 | |
| 14 | ; CHECK: @uadd_1 |
| 15 | ; CHECK: ret %i8i1 { i8 -114, i1 false } |
| 16 | } |
| 17 | |
| 18 | define {i8, i1} @uadd_2() nounwind { |
| 19 | entry: |
| 20 | %t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 142, i8 120) |
| 21 | ret {i8, i1} %t |
| 22 | |
| 23 | ; CHECK: @uadd_2 |
| 24 | ; CHECK: ret %i8i1 { i8 6, i1 true } |
| 25 | } |
| 26 | |
| 27 | |
| 28 | ;;----------------------------- |
| 29 | ;; usub |
| 30 | ;;----------------------------- |
| 31 | |
| 32 | define {i8, i1} @usub_1() nounwind { |
| 33 | entry: |
| 34 | %t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 2) |
| 35 | ret {i8, i1} %t |
| 36 | |
| 37 | ; CHECK: @usub_1 |
| 38 | ; CHECK: ret %i8i1 { i8 2, i1 false } |
| 39 | } |
| 40 | |
| 41 | define {i8, i1} @usub_2() nounwind { |
| 42 | entry: |
| 43 | %t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 6) |
| 44 | ret {i8, i1} %t |
| 45 | |
| 46 | ; CHECK: @usub_2 |
| 47 | ; CHECK: ret %i8i1 { i8 -2, i1 true } |
| 48 | } |
| 49 | |
| 50 | |
| 51 | |
| 52 | declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8) |
| 53 | declare {i8, i1} @llvm.usub.with.overflow.i8(i8, i8) |