1*9880d681SAndroid Build Coastguard Worker; PR4738 - Test that the library call simplifier doesn't assume anything about 2*9880d681SAndroid Build Coastguard Worker; weak symbols. 3*9880d681SAndroid Build Coastguard Worker; 4*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker@real_init = weak_odr constant [2 x i8] c"y\00" 7*9880d681SAndroid Build Coastguard Worker@fake_init = weak constant [2 x i8] c"y\00" 8*9880d681SAndroid Build Coastguard Worker@.str = private constant [2 x i8] c"y\00" 9*9880d681SAndroid Build Coastguard Worker 10*9880d681SAndroid Build Coastguard Workerdefine i32 @foo() nounwind { 11*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define i32 @foo( 12*9880d681SAndroid Build Coastguard Worker; CHECK: call i32 @strcmp 13*9880d681SAndroid Build Coastguard Worker; CHECK: ret i32 %temp1 14*9880d681SAndroid Build Coastguard Worker 15*9880d681SAndroid Build Coastguard Workerentry: 16*9880d681SAndroid Build Coastguard Worker %str1 = getelementptr inbounds [2 x i8], [2 x i8]* @fake_init, i64 0, i64 0 17*9880d681SAndroid Build Coastguard Worker %str2 = getelementptr inbounds [2 x i8], [2 x i8]* @.str, i64 0, i64 0 18*9880d681SAndroid Build Coastguard Worker %temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly 19*9880d681SAndroid Build Coastguard Worker ret i32 %temp1 20*9880d681SAndroid Build Coastguard Worker} 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Workerdefine i32 @bar() nounwind { 23*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define i32 @bar( 24*9880d681SAndroid Build Coastguard Worker; CHECK: ret i32 0 25*9880d681SAndroid Build Coastguard Worker 26*9880d681SAndroid Build Coastguard Workerentry: 27*9880d681SAndroid Build Coastguard Worker %str1 = getelementptr inbounds [2 x i8], [2 x i8]* @real_init, i64 0, i64 0 28*9880d681SAndroid Build Coastguard Worker %str2 = getelementptr inbounds [2 x i8], [2 x i8]* @.str, i64 0, i64 0 29*9880d681SAndroid Build Coastguard Worker %temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly 30*9880d681SAndroid Build Coastguard Worker ret i32 %temp1 31*9880d681SAndroid Build Coastguard Worker} 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Workerdeclare i32 @strcmp(i8*, i8*) nounwind readonly 34