|  | ; RUN: llc < %s -mtriple x86_64-apple-darwin11 -O0 -fast-isel-abort | FileCheck %s | 
|  |  | 
|  | %struct.x = type { i64, i64 } | 
|  | %addovf = type { i32, i1 } | 
|  | declare %struct.x @f() | 
|  |  | 
|  | define void @test1(i64*) nounwind ssp { | 
|  | %2 = tail call %struct.x @f() nounwind | 
|  | %3 = extractvalue %struct.x %2, 0 | 
|  | %4 = add i64 %3, 10 | 
|  | store i64 %4, i64* %0 | 
|  | ret void | 
|  | ; CHECK: test1: | 
|  | ; CHECK: callq _f | 
|  | ; CHECK-NEXT: addq	$10, %rax | 
|  | } | 
|  |  | 
|  | define void @test2(i64*) nounwind ssp { | 
|  | %2 = tail call %struct.x @f() nounwind | 
|  | %3 = extractvalue %struct.x %2, 1 | 
|  | %4 = add i64 %3, 10 | 
|  | store i64 %4, i64* %0 | 
|  | ret void | 
|  | ; CHECK: test2: | 
|  | ; 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 | 
|  | } |