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| author | Bill Wendling <isanbard@gmail.com> | 2008-11-24 01:38:29 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2008-11-24 01:38:29 +0000 |
| commit | 8062b078b526948d2f2879da7c2bd0921389120f (patch) | |
| tree | ecfe11fd6c7d9f3aa263244be659a96560b8bda1 /test | |
| parent | cbd6abcf07687ef75d1ef6d4c0ce8e5c59113a34 (diff) | |
| download | external_llvm-8062b078b526948d2f2879da7c2bd0921389120f.zip external_llvm-8062b078b526948d2f2879da7c2bd0921389120f.tar.gz external_llvm-8062b078b526948d2f2879da7c2bd0921389120f.tar.bz2 | |
Add support for llvm.uadd.with.overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59926 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/Generic/add-with-overflow.ll | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/test/CodeGen/Generic/add-with-overflow.ll b/test/CodeGen/Generic/add-with-overflow.ll index d23b75c..e6ad7bb 100644 --- a/test/CodeGen/Generic/add-with-overflow.ll +++ b/test/CodeGen/Generic/add-with-overflow.ll @@ -3,7 +3,7 @@ @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 { +define i1 @func1(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 @@ -19,5 +19,22 @@ overflow: ret i1 false } +define i1 @func2(i32 %v1, i32 %v2) nounwind { +entry: + %t = call {i32, i1} @llvm.uadd.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) +declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32) |