1 ; RUN: opt -codegenprepare -S < %s | FileCheck %s 2 3 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" 4 target triple = "x86_64-apple-darwin10.0.0" 5 6 ; CHECK-LABEL: @test1( 7 ; CHECK: llvm.uadd.with.overflow 8 ; CHECK: ret i64 9 define i64 @test1(i64 %a, i64 %b) nounwind ssp { 10 entry: 11 %add = add i64 %b, %a 12 %cmp = icmp ult i64 %add, %a 13 %Q = select i1 %cmp, i64 %b, i64 42 14 ret i64 %Q 15 } 16 17 ; CHECK-LABEL: @test2( 18 ; CHECK: llvm.uadd.with.overflow 19 ; CHECK: ret i64 20 define i64 @test2(i64 %a, i64 %b) nounwind ssp { 21 entry: 22 %add = add i64 %b, %a 23 %cmp = icmp ult i64 %add, %b 24 %Q = select i1 %cmp, i64 %b, i64 42 25 ret i64 %Q 26 } 27 28 ; CHECK-LABEL: @test3( 29 ; CHECK: llvm.uadd.with.overflow 30 ; CHECK: ret i64 31 define i64 @test3(i64 %a, i64 %b) nounwind ssp { 32 entry: 33 %add = add i64 %b, %a 34 %cmp = icmp ugt i64 %b, %add 35 %Q = select i1 %cmp, i64 %b, i64 42 36 ret i64 %Q 37 } 38 39 ; CHECK-LABEL: @test4( 40 ; CHECK: llvm.uadd.with.overflow 41 ; CHECK: extractvalue 42 ; CHECK: extractvalue 43 ; CHECK: select 44 define i64 @test4(i64 %a, i64 %b, i1 %c) nounwind ssp { 45 entry: 46 %add = add i64 %b, %a 47 %cmp = icmp ugt i64 %b, %add 48 br i1 %c, label %next, label %exit 49 50 next: 51 %Q = select i1 %cmp, i64 %b, i64 42 52 ret i64 %Q 53 54 exit: 55 ret i64 0 56 } 57 58 ; CHECK-LABEL: @test5( 59 ; CHECK-NOT: llvm.uadd.with.overflow 60 ; CHECK: next 61 define i64 @test5(i64 %a, i64 %b, i64* %ptr, i1 %c) nounwind ssp { 62 entry: 63 %add = add i64 %b, %a 64 store i64 %add, i64* %ptr 65 %cmp = icmp ugt i64 %b, %add 66 br i1 %c, label %next, label %exit 67 68 next: 69 %Q = select i1 %cmp, i64 %b, i64 42 70 ret i64 %Q 71 72 exit: 73 ret i64 0 74 } 75