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| author | Bill Wendling <isanbard@gmail.com> | 2008-11-21 02:15:51 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2008-11-21 02:15:51 +0000 |
| commit | 52a5899fd98d2b922c57a0a35992f908392cfe52 (patch) | |
| tree | ed15c8a5bbc8b42db543eda91170a391e4b7f713 /test/CodeGen/Generic | |
| parent | 1c55a9c0cc355ad72c55ae7665143b9a992d223b (diff) | |
| download | external_llvm-52a5899fd98d2b922c57a0a35992f908392cfe52.zip external_llvm-52a5899fd98d2b922c57a0a35992f908392cfe52.tar.gz external_llvm-52a5899fd98d2b922c57a0a35992f908392cfe52.tar.bz2 | |
Add generic test for add with overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59781 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Generic')
| -rw-r--r-- | test/CodeGen/Generic/add-with-overflow.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/CodeGen/Generic/add-with-overflow.ll b/test/CodeGen/Generic/add-with-overflow.ll new file mode 100644 index 0000000..d23b75c --- /dev/null +++ b/test/CodeGen/Generic/add-with-overflow.ll @@ -0,0 +1,23 @@ +; RUN: llvm-as < %s | llc + +@ok = internal constant [4 x i8] c"%d\0A\00" +@no = internal constant [4 x i8] c"no\0A\00" + +define i1 @foo(i32 %v1, i32 %v2) nounwind { +entry: + %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2) + %sum = extractvalue {i32, i1} %t, 0 + %obit = extractvalue {i32, i1} %t, 1 + br i1 %obit, label %overflow, 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 + +overflow: + %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.sadd.with.overflow.i32(i32, i32) |