Make fast-isel work correctly s/uadd.with.overflow intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131420 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/fast-isel-extract.ll b/test/CodeGen/X86/fast-isel-extract.ll
index 5493fbf..e51c417 100644
--- a/test/CodeGen/X86/fast-isel-extract.ll
+++ b/test/CodeGen/X86/fast-isel-extract.ll
@@ -1,6 +1,7 @@
; RUN: llc < %s -mtriple x86_64-apple-darwin11 -O0 | FileCheck %s
%struct.x = type { i64, i64 }
+%addovf = type { i32, i1 }
declare %struct.x @f()
define void @test1(i64*) nounwind ssp {
@@ -24,3 +25,24 @@
; CHECK: callq _f
; CHECK-NEXT: addq $10, %rdx
}
+
+declare %addovf @llvm.sadd.with.overflow.i32(i32, i32) nounwind readnone
+
+define void @test3(i32 %x, i32 %y, i32* %z) {
+ %r = call %addovf @llvm.sadd.with.overflow.i32(i32 %x, i32 %y)
+ %sum = extractvalue %addovf %r, 0
+ %sum3 = mul i32 %sum, 3
+ %bit = extractvalue %addovf %r, 1
+ br i1 %bit, label %then, label %end
+
+then:
+ store i32 %sum3, i32* %z
+ br label %end
+
+end:
+ ret void
+; CHECK: test3
+; CHECK: addl
+; CHECK: seto %al
+; CHECK: testb $1, %al
+}