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| author | Bill Wendling <isanbard@gmail.com> | 2008-11-26 22:42:19 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2008-11-26 22:42:19 +0000 |
| commit | a69ced6b686f285709cfd41c843887a7fb24e924 (patch) | |
| tree | 105ac0dc198190c8d0693993889bdcba68888fd5 /llvm | |
| parent | 9323b04b362519daff52d2689877a3b7cba6e474 (diff) | |
| download | bcm5719-llvm-a69ced6b686f285709cfd41c843887a7fb24e924.tar.gz bcm5719-llvm-a69ced6b686f285709cfd41c843887a7fb24e924.zip | |
Add x86-specific test for add-with-overflow intrinsics.
llvm-svn: 60125
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/test/CodeGen/X86/add-with-overflow.ll | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/add-with-overflow.ll b/llvm/test/CodeGen/X86/add-with-overflow.ll new file mode 100644 index 00000000000..8fab46cd629 --- /dev/null +++ b/llvm/test/CodeGen/X86/add-with-overflow.ll @@ -0,0 +1,41 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep {jo} | count 1 +; RUN: llvm-as < %s | llc -march=x86 | grep {jc} | count 1 + +@ok = internal constant [4 x i8] c"%d\0A\00" +@no = internal constant [4 x i8] c"no\0A\00" + +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 + %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 +} + +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) |
