| ; RUN: llc < %s -march=x86 | grep "jc" | count 1 |
| ; XFAIL: * |
| |
| ; FIXME: umul-with-overflow not supported yet. |
| |
| @ok = internal constant [4 x i8] c"%d\0A\00" |
| @no = internal constant [4 x i8] c"no\0A\00" |
| |
| define i1 @func(i32 %v1, i32 %v2) nounwind { |
| entry: |
| %t = call {i32, i1} @llvm.umul.with.overflow.i32(i32 %v1, i32 %v2) |
| %sum = extractvalue {i32, i1} %t, 0 |
| %obit = extractvalue {i32, i1} %t, 1 |
| br i1 %obit, label %carry, label %normal |
| |
| normal: |
| %t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum ) nounwind |
| ret i1 true |
| |
| carry: |
| %t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind |
| ret i1 false |
| } |
| |
| declare i32 @printf(i8*, ...) nounwind |
| declare {i32, i1} @llvm.umul.with.overflow.i32(i32, i32) |
