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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 | d10202bfb14cf9eff68f845fe40b10c05a541892 (patch) | |
| tree | eb7331885a0fc6eb31726e48e3f0a4f1c880f891 | |
| parent | 77538cc510b9c91874696fd13c4ee54d54a7a884 (diff) | |
| download | bcm5719-llvm-d10202bfb14cf9eff68f845fe40b10c05a541892.tar.gz bcm5719-llvm-d10202bfb14cf9eff68f845fe40b10c05a541892.zip | |
Add generic test for add with overflow.
llvm-svn: 59781
| -rw-r--r-- | llvm/test/CodeGen/Generic/add-with-overflow.ll | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Generic/add-with-overflow.ll b/llvm/test/CodeGen/Generic/add-with-overflow.ll new file mode 100644 index 00000000000..d23b75c1f6c --- /dev/null +++ b/llvm/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) |
