| Bill Wendling | e21815f | 2008-11-26 22:42:19 +0000 | [diff] [blame] | 1 | ; RUN: llvm-as < %s | llc -march=x86 | grep {jo} | count 1 |
| 2 | ; RUN: llvm-as < %s | llc -march=x86 | grep {jc} | count 1 |
| Bill Wendling | e21815f | 2008-11-26 22:42:19 +0000 | [diff] [blame] | 3 | |
| 4 | @ok = internal constant [4 x i8] c"%d\0A\00" |
| 5 | @no = internal constant [4 x i8] c"no\0A\00" |
| 6 | |
| 7 | define i1 @func1(i32 %v1, i32 %v2) nounwind { |
| 8 | entry: |
| 9 | %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2) |
| 10 | %sum = extractvalue {i32, i1} %t, 0 |
| 11 | %obit = extractvalue {i32, i1} %t, 1 |
| 12 | br i1 %obit, label %overflow, label %normal |
| 13 | |
| 14 | normal: |
| 15 | %t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum ) nounwind |
| 16 | ret i1 true |
| 17 | |
| 18 | overflow: |
| 19 | %t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind |
| 20 | ret i1 false |
| 21 | } |
| 22 | |
| 23 | define i1 @func2(i32 %v1, i32 %v2) nounwind { |
| 24 | entry: |
| 25 | %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2) |
| 26 | %sum = extractvalue {i32, i1} %t, 0 |
| 27 | %obit = extractvalue {i32, i1} %t, 1 |
| Bill Wendling | b3cf03c | 2008-12-03 02:43:12 +0000 | [diff] [blame^] | 28 | br i1 %obit, label %carry, label %normal |
| Bill Wendling | e21815f | 2008-11-26 22:42:19 +0000 | [diff] [blame] | 29 | |
| 30 | normal: |
| 31 | %t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum ) nounwind |
| 32 | ret i1 true |
| 33 | |
| Bill Wendling | b3cf03c | 2008-12-03 02:43:12 +0000 | [diff] [blame^] | 34 | carry: |
| Bill Wendling | e21815f | 2008-11-26 22:42:19 +0000 | [diff] [blame] | 35 | %t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind |
| 36 | ret i1 false |
| 37 | } |
| 38 | |
| 39 | declare i32 @printf(i8*, ...) nounwind |
| 40 | declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32) |
| 41 | declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32) |