; RUN: opt -O2 -S < %s | FileCheck %s 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" target triple = "x86_64-apple-darwin11.1" %"struct.boost::compressed_pair" = type { %"struct.boost::details::compressed_pair_imp" } %"struct.boost::details::compressed_pair_imp" = type { i32 } %struct.empty_base_t = type <{ i8 }> %struct.empty_t = type <{ i8 }> @.str = private constant [25 x i8] c"x.second() was clobbered\00", align 1 ; [#uses=1] define i32 @main(i32 %argc, ptr %argv) ssp { entry: %argc_addr = alloca i32, align 4 ; [#uses=1] %argv_addr = alloca ptr, align 8 ; [#uses=1] %retval = alloca i32 ; [#uses=2] %0 = alloca i32 ; [#uses=2] %retval.1 = alloca i8 ; [#uses=2] %1 = alloca %struct.empty_base_t ; [#uses=1] %2 = alloca ptr ; [#uses=1] %x = alloca %"struct.boost::compressed_pair" ; [#uses=3] %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] store i32 %argc, ptr %argc_addr store ptr %argv, ptr %argv_addr %3 = call ptr @_ZN5boost15compressed_pairI7empty_tiE6secondEv(ptr %x) ssp ; [#uses=1] store i32 -3, ptr %3, align 4 %4 = call ptr @_ZN5boost15compressed_pairI7empty_tiE5firstEv(ptr %x) ssp ; [#uses=1] store ptr %4, ptr %2, align 8 call void @_ZN7empty_tC1Ev(ptr %1) nounwind %5 = call ptr @_ZN5boost15compressed_pairI7empty_tiE6secondEv(ptr %x) ssp ; [#uses=1] %6 = load i32, ptr %5, align 4 ; [#uses=1] %7 = icmp ne i32 %6, -3 ; [#uses=1] %8 = zext i1 %7 to i8 ; [#uses=1] store i8 %8, ptr %retval.1, align 1 %9 = load i8, ptr %retval.1, align 1 ; [#uses=1] %toBool = icmp ne i8 %9, 0 ; [#uses=1] br i1 %toBool, label %bb, label %bb1 bb: ; preds = %entry %10 = call i32 @puts(ptr @.str) ; [#uses=0] call void @abort() noreturn unreachable bb1: ; preds = %entry store i32 0, ptr %0, align 4 %11 = load i32, ptr %0, align 4 ; [#uses=1] store i32 %11, ptr %retval, align 4 br label %return ; CHECK-NOT: x.second() was clobbered ; CHECK: ret i32 return: ; preds = %bb1 %retval2 = load i32, ptr %retval ; [#uses=1] ret i32 %retval2 } define linkonce_odr void @_ZN12empty_base_tC2Ev(ptr %this) nounwind ssp align 2 { entry: %this_addr = alloca ptr, align 8 ; [#uses=1] %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] store ptr %this, ptr %this_addr br label %return return: ; preds = %entry ret void } define linkonce_odr void @_ZN7empty_tC1Ev(ptr %this) nounwind ssp align 2 { entry: %this_addr = alloca ptr, align 8 ; [#uses=2] %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] store ptr %this, ptr %this_addr %0 = load ptr, ptr %this_addr, align 8 ; [#uses=1] call void @_ZN12empty_base_tC2Ev(ptr %0) nounwind br label %return return: ; preds = %entry ret void } define linkonce_odr ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE6secondEv(ptr %this) nounwind ssp align 2 { entry: %this_addr = alloca ptr, align 8 ; [#uses=2] %retval = alloca ptr ; [#uses=2] %0 = alloca ptr ; [#uses=2] %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] store ptr %this, ptr %this_addr %1 = load ptr, ptr %this_addr, align 8 ; [#uses=1] %2 = getelementptr inbounds %"struct.boost::details::compressed_pair_imp", ptr %1, i32 0, i32 0 ; [#uses=1] store ptr %2, ptr %0, align 8 %3 = load ptr, ptr %0, align 8 ; [#uses=1] store ptr %3, ptr %retval, align 8 br label %return return: ; preds = %entry %retval1 = load ptr, ptr %retval ; [#uses=1] ret ptr %retval1 } define linkonce_odr ptr @_ZN5boost15compressed_pairI7empty_tiE6secondEv(ptr %this) ssp align 2 { entry: %this_addr = alloca ptr, align 8 ; [#uses=2] %retval = alloca ptr ; [#uses=2] %0 = alloca ptr ; [#uses=2] %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] store ptr %this, ptr %this_addr %1 = load ptr, ptr %this_addr, align 8 ; [#uses=1] %2 = getelementptr inbounds %"struct.boost::compressed_pair", ptr %1, i32 0, i32 0 ; [#uses=1] %3 = call ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE6secondEv(ptr %2) nounwind ; [#uses=1] store ptr %3, ptr %0, align 8 %4 = load ptr, ptr %0, align 8 ; [#uses=1] store ptr %4, ptr %retval, align 8 br label %return return: ; preds = %entry %retval1 = load ptr, ptr %retval ; [#uses=1] ret ptr %retval1 } define linkonce_odr ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE5firstEv(ptr %this) nounwind ssp align 2 { entry: %this_addr = alloca ptr, align 8 ; [#uses=2] %retval = alloca ptr ; [#uses=2] %0 = alloca ptr ; [#uses=2] %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] store ptr %this, ptr %this_addr %1 = load ptr, ptr %this_addr, align 8 ; [#uses=1] store ptr %1, ptr %0, align 8 %2 = load ptr, ptr %0, align 8 ; [#uses=1] store ptr %2, ptr %retval, align 8 br label %return return: ; preds = %entry %retval1 = load ptr, ptr %retval ; [#uses=1] ret ptr %retval1 } define linkonce_odr ptr @_ZN5boost15compressed_pairI7empty_tiE5firstEv(ptr %this) ssp align 2 { entry: %this_addr = alloca ptr, align 8 ; [#uses=2] %retval = alloca ptr ; [#uses=2] %0 = alloca ptr ; [#uses=2] %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] store ptr %this, ptr %this_addr %1 = load ptr, ptr %this_addr, align 8 ; [#uses=1] %2 = getelementptr inbounds %"struct.boost::compressed_pair", ptr %1, i32 0, i32 0 ; [#uses=1] %3 = call ptr @_ZN5boost7details19compressed_pair_impI7empty_tiLi1EE5firstEv(ptr %2) nounwind ; [#uses=1] store ptr %3, ptr %0, align 8 %4 = load ptr, ptr %0, align 8 ; [#uses=1] store ptr %4, ptr %retval, align 8 br label %return return: ; preds = %entry %retval1 = load ptr, ptr %retval ; [#uses=1] ret ptr %retval1 } declare i32 @puts(ptr) declare void @abort() noreturn