| Dan Gohman | c8054d9 | 2009-09-09 00:09:15 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s |
| Duncan Sands | 09ed3bb | 2008-12-10 12:30:42 +0000 | [diff] [blame] | 2 | |
| 3 | @ok = internal constant [4 x i8] c"%d\0A\00" |
| 4 | @no = internal constant [4 x i8] c"no\0A\00" |
| 5 | |
| 6 | define i1 @func1(i24 signext %v1, i24 signext %v2) nounwind { |
| 7 | entry: |
| 8 | %t = call {i24, i1} @llvm.sadd.with.overflow.i24(i24 %v1, i24 %v2) |
| 9 | %sum = extractvalue {i24, i1} %t, 0 |
| 10 | %sum32 = sext i24 %sum to i32 |
| 11 | %obit = extractvalue {i24, i1} %t, 1 |
| 12 | br i1 %obit, label %overflow, label %normal |
| 13 | |
| 14 | normal: |
| David Blaikie | f72d05b | 2015-03-13 18:20:45 +0000 | [diff] [blame] | 15 | %t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @ok, i32 0, i32 0), i32 %sum32 ) nounwind |
| Duncan Sands | 09ed3bb | 2008-12-10 12:30:42 +0000 | [diff] [blame] | 16 | ret i1 true |
| 17 | |
| 18 | overflow: |
| David Blaikie | f72d05b | 2015-03-13 18:20:45 +0000 | [diff] [blame] | 19 | %t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @no, i32 0, i32 0) ) nounwind |
| Duncan Sands | 09ed3bb | 2008-12-10 12:30:42 +0000 | [diff] [blame] | 20 | ret i1 false |
| 21 | } |
| 22 | |
| 23 | define i1 @func2(i24 zeroext %v1, i24 zeroext %v2) nounwind { |
| 24 | entry: |
| 25 | %t = call {i24, i1} @llvm.uadd.with.overflow.i24(i24 %v1, i24 %v2) |
| 26 | %sum = extractvalue {i24, i1} %t, 0 |
| 27 | %sum32 = zext i24 %sum to i32 |
| 28 | %obit = extractvalue {i24, i1} %t, 1 |
| 29 | br i1 %obit, label %carry, label %normal |
| 30 | |
| 31 | normal: |
| David Blaikie | f72d05b | 2015-03-13 18:20:45 +0000 | [diff] [blame] | 32 | %t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @ok, i32 0, i32 0), i32 %sum32 ) nounwind |
| Duncan Sands | 09ed3bb | 2008-12-10 12:30:42 +0000 | [diff] [blame] | 33 | ret i1 true |
| 34 | |
| 35 | carry: |
| David Blaikie | f72d05b | 2015-03-13 18:20:45 +0000 | [diff] [blame] | 36 | %t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @no, i32 0, i32 0) ) nounwind |
| Duncan Sands | 09ed3bb | 2008-12-10 12:30:42 +0000 | [diff] [blame] | 37 | ret i1 false |
| 38 | } |
| 39 | |
| 40 | declare i32 @printf(i8*, ...) nounwind |
| 41 | declare {i24, i1} @llvm.sadd.with.overflow.i24(i24, i24) |
| 42 | declare {i24, i1} @llvm.uadd.with.overflow.i24(i24, i24) |