| Anna Zaks | 0ac5684 | 2011-06-21 17:18:15 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=c |
| 2 | ; Check that uadd and sadd with overflow are handled by C Backend. |
| 3 | |
| 4 | %0 = type { i32, i1 } ; type %0 |
| 5 | |
| 6 | define i1 @func1(i32 zeroext %v1, i32 zeroext %v2) nounwind { |
| 7 | entry: |
| 8 | %t = call %0 @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2) ; <%0> [#uses=1] |
| 9 | %obit = extractvalue %0 %t, 1 ; <i1> [#uses=1] |
| 10 | br i1 %obit, label %carry, label %normal |
| 11 | |
| 12 | normal: ; preds = %entry |
| 13 | ret i1 true |
| 14 | |
| 15 | carry: ; preds = %entry |
| 16 | ret i1 false |
| 17 | } |
| 18 | |
| 19 | define i1 @func2(i32 signext %v1, i32 signext %v2) nounwind { |
| 20 | entry: |
| 21 | %t = call %0 @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2) ; <%0> [#uses=1] |
| 22 | %obit = extractvalue %0 %t, 1 ; <i1> [#uses=1] |
| 23 | br i1 %obit, label %carry, label %normal |
| 24 | |
| 25 | normal: ; preds = %entry |
| 26 | ret i1 true |
| 27 | |
| 28 | carry: ; preds = %entry |
| 29 | ret i1 false |
| 30 | } |
| 31 | |
| 32 | declare %0 @llvm.sadd.with.overflow.i32(i32, i32) nounwind |
| 33 | |
| 34 | declare %0 @llvm.uadd.with.overflow.i32(i32, i32) nounwind |
| 35 | |