1 ; RUN: opt < %s -indvars -liv-reduce -S | FileCheck %s
2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
3 target triple = "x86_64-apple-macosx"
5 ; CHECK-LABEL: @addwithoverflow
9 ; CHECK: @llvm.sadd.with.overflow
11 ; CHECK-NOT: extractvalue
13 ; CHECK: @llvm.sadd.with.overflow
15 ; CHECK-NOT: extractvalue
17 define i64 @addwithoverflow(i32 %n, i64* %a) {
22 %i = phi i32 [ 0, %entry ], [ %i1val, %loop3 ]
23 %s = phi i32 [ 0, %entry ], [ %addsval, %loop3 ]
24 %bc = icmp ult i32 %i, %n
25 br i1 %bc, label %loop1, label %exit
28 %zxt = zext i32 %i to i64
29 %ofs = shl nuw nsw i64 %zxt, 3
30 %gep = getelementptr i64, i64* %a, i64 %zxt
31 %v = load i64, i64* %gep, align 8
32 %truncv = trunc i64 %v to i32
33 %adds = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %s, i32 %truncv)
34 %ovflows = extractvalue { i32, i1 } %adds, 1
35 br i1 %ovflows, label %exit, label %loop2
38 %addsval = extractvalue { i32, i1 } %adds, 0
39 %i1 = call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %i, i32 1)
40 %i1check = extractvalue { i32, i1 } %i1, 1
41 br i1 %i1check, label %exit, label %loop3
44 %i1val = extractvalue { i32, i1 } %i1, 0
45 %test = icmp slt i32 %i1val, %n
46 br i1 %test, label %return, label %loop0
49 %ret = zext i32 %addsval to i64
56 declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32)