[llvm-commits] [llvm] r60125 - /llvm/trunk/test/CodeGen/X86/add-with-overflow.ll

[Bill Wendling]

Author: void
Date: Wed Nov 26 16:42:19 2008
New Revision: 60125

URL: http://llvm.org/viewvc/llvm-project?rev=60125&view=rev
Log:
Add x86-specific test for add-with-overflow intrinsics.

Added:
    llvm/trunk/test/CodeGen/X86/add-with-overflow.ll

Added: llvm/trunk/test/CodeGen/X86/add-with-overflow.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/add-with-overflow.ll?rev=60125&view=auto

==============================================================================
--- llvm/trunk/test/CodeGen/X86/add-with-overflow.ll (added)
+++ llvm/trunk/test/CodeGen/X86/add-with-overflow.ll Wed Nov 26 16:42:19 2008
@@ -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
+
+ at ok = internal constant [4 x i8] c"%d\0A\00"
+ at 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)