1; RUN: opt -O2 -S < %s | FileCheck %s 2 3target 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" 4target triple = "x86_64-apple-darwin11.1" 5 6%"struct.boost::compressed_pair<empty_t,int>" = type { %"struct.boost::details::compressed_pair_imp<empty_t,int,1>" } 7%"struct.boost::details::compressed_pair_imp<empty_t,int,1>" = type { i32 } 8%struct.empty_base_t = type <{ i8 }> 9%struct.empty_t = type <{ i8 }> 10 11@.str = private constant [25 x i8] c"x.second() was clobbered\00", align 1 ; <ptr> [#uses=1] 12 13define i32 @main(i32 %argc, ptr %argv) ssp { 14entry: 15 %argc_addr = alloca i32, align 4 ; <ptr> [#uses=1] 16 %argv_addr = alloca ptr, align 8 ; <ptr> [#uses=1] 17 %retval = alloca i32 ; <ptr> [#uses=2] 18 %0 = alloca i32 ; <ptr> [#uses=2] 19 %retval.1 = alloca i8 ; <ptr> [#uses=2] 20 %1 = alloca %struct.empty_base_t ; <ptr> [#uses=1] 21 %2 = alloca ptr ; <ptr> [#uses=1] 22 %x = alloca %"struct.boost::compressed_pair<empty_t,int>" ; <ptr> [#uses=3] 23 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 24 store i32 %argc, ptr %argc_addr 25 store ptr %argv, ptr %argv_addr 26 %3 = call ptr @_ZN5boost15compressed_pairI7empty_tiE6secondEv(ptr %x) ssp ; <ptr> [#uses=1] 27 store i32 -3, ptr %3, align 4 28 %4 = call ptr @_ZN5boost15compressed_pairI7empty_tiE5firstEv(ptr %x) ssp ; <ptr> [#uses=1] 29 store ptr %4, ptr %2, align 8 30 call void @_ZN7empty_tC1Ev(ptr %1) nounwind 31 %5 = call ptr @_ZN5boost15compressed_pairI7empty_tiE6secondEv(ptr %x) ssp ; <ptr> [#uses=1] 32 %6 = load i32, ptr %5, align 4 ; <i32> [#uses=1] 33 %7 = icmp ne i32 %6, -3 ; <i1> [#uses=1] 34 %8 = zext i1 %7 to i8 ; <i8> [#uses=1] 35 store i8 %8, ptr %retval.1, align 1 36 %9 = load i8, ptr %retval.1, align 1 ; <i8> [#uses=1] 37 %toBool = icmp ne i8 %9, 0 ; <i1> [#uses=1] 38 br i1 %toBool, label %bb, label %bb1 39 40bb: ; preds = %entry 41 %10 = call i32 @puts(ptr @.str) ; <i32> [#uses=0] 42 call void @abort() noreturn 43 unreachable 44 45bb1: ; preds = %entry 46 store i32 0, ptr %0, align 4 47 %11 = load i32, ptr %0, align 4 ; <i32> [#uses=1] 48 store i32 %11, ptr %retval, align 4 49 br label %return 50 51; CHECK-NOT: x.second() was clobbered 52; CHECK: ret i32 53return: ; preds = %bb1 54 %retval2 = load i32, ptr %retval ; <i32> [#uses=1] 55 ret i32 %retval2 56} 57 58define linkonce_odr void @_ZN12empty_base_tC2Ev(ptr %this) nounwind ssp align 2 { 59entry: 60 %this_addr = alloca ptr, align 8 ; <ptr> [#uses=1] 61 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 62 store ptr %this, ptr %this_addr 63 br label %return 64 65return: ; preds = %entry 66 ret void 67} 68 69define linkonce_odr void @_ZN7empty_tC1Ev(ptr %this) nounwind ssp align 2 { 70entry: 71 %this_addr = alloca ptr, align 8 ; <ptr> [#uses=2] 72 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 73 store ptr %this, ptr %this_addr 74 %0 = load ptr, ptr %this_addr, align 8 ; <ptr> [#uses=1] 75 call void @_ZN12empty_base_tC2Ev(ptr %0) nounwind 76 br label %return 77 78return: ; preds = %entry 79 ret void 80} 81 82define linkonce_odr ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE6secondEv(ptr %this) nounwind ssp align 2 { 83entry: 84 %this_addr = alloca ptr, align 8 ; <ptr> [#uses=2] 85 %retval = alloca ptr ; <ptr> [#uses=2] 86 %0 = alloca ptr ; <ptr> [#uses=2] 87 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 88 store ptr %this, ptr %this_addr 89 %1 = load ptr, ptr %this_addr, align 8 ; <ptr> [#uses=1] 90 %2 = getelementptr inbounds %"struct.boost::details::compressed_pair_imp<empty_t,int,1>", ptr %1, i32 0, i32 0 ; <ptr> [#uses=1] 91 store ptr %2, ptr %0, align 8 92 %3 = load ptr, ptr %0, align 8 ; <ptr> [#uses=1] 93 store ptr %3, ptr %retval, align 8 94 br label %return 95 96return: ; preds = %entry 97 %retval1 = load ptr, ptr %retval ; <ptr> [#uses=1] 98 ret ptr %retval1 99} 100 101define linkonce_odr ptr @_ZN5boost15compressed_pairI7empty_tiE6secondEv(ptr %this) ssp align 2 { 102entry: 103 %this_addr = alloca ptr, align 8 ; <ptr> [#uses=2] 104 %retval = alloca ptr ; <ptr> [#uses=2] 105 %0 = alloca ptr ; <ptr> [#uses=2] 106 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 107 store ptr %this, ptr %this_addr 108 %1 = load ptr, ptr %this_addr, align 8 ; <ptr> [#uses=1] 109 %2 = getelementptr inbounds %"struct.boost::compressed_pair<empty_t,int>", ptr %1, i32 0, i32 0 ; <ptr> [#uses=1] 110 %3 = call ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE6secondEv(ptr %2) nounwind ; <ptr> [#uses=1] 111 store ptr %3, ptr %0, align 8 112 %4 = load ptr, ptr %0, align 8 ; <ptr> [#uses=1] 113 store ptr %4, ptr %retval, align 8 114 br label %return 115 116return: ; preds = %entry 117 %retval1 = load ptr, ptr %retval ; <ptr> [#uses=1] 118 ret ptr %retval1 119} 120 121define linkonce_odr ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE5firstEv(ptr %this) nounwind ssp align 2 { 122entry: 123 %this_addr = alloca ptr, align 8 ; <ptr> [#uses=2] 124 %retval = alloca ptr ; <ptr> [#uses=2] 125 %0 = alloca ptr ; <ptr> [#uses=2] 126 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 127 store ptr %this, ptr %this_addr 128 %1 = load ptr, ptr %this_addr, align 8 ; <ptr> [#uses=1] 129 store ptr %1, ptr %0, align 8 130 %2 = load ptr, ptr %0, align 8 ; <ptr> [#uses=1] 131 store ptr %2, ptr %retval, align 8 132 br label %return 133 134return: ; preds = %entry 135 %retval1 = load ptr, ptr %retval ; <ptr> [#uses=1] 136 ret ptr %retval1 137} 138 139define linkonce_odr ptr @_ZN5boost15compressed_pairI7empty_tiE5firstEv(ptr %this) ssp align 2 { 140entry: 141 %this_addr = alloca ptr, align 8 ; <ptr> [#uses=2] 142 %retval = alloca ptr ; <ptr> [#uses=2] 143 %0 = alloca ptr ; <ptr> [#uses=2] 144 %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] 145 store ptr %this, ptr %this_addr 146 %1 = load ptr, ptr %this_addr, align 8 ; <ptr> [#uses=1] 147 %2 = getelementptr inbounds %"struct.boost::compressed_pair<empty_t,int>", ptr %1, i32 0, i32 0 ; <ptr> [#uses=1] 148 %3 = call ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE5firstEv(ptr %2) nounwind ; <ptr> [#uses=1] 149 store ptr %3, ptr %0, align 8 150 %4 = load ptr, ptr %0, align 8 ; <ptr> [#uses=1] 151 store ptr %4, ptr %retval, align 8 152 br label %return 153 154return: ; preds = %entry 155 %retval1 = load ptr, ptr %retval ; <ptr> [#uses=1] 156 ret ptr %retval1 157} 158 159declare i32 @puts(ptr) 160 161declare void @abort() noreturn 162