1*9880d681SAndroid Build Coastguard Worker; RUN: opt -S -O1 -enable-non-lto-gmr=true < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker@a = common global i32 0, align 4 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker; @hook_me is weak, so GMR must not eliminate the reload of @a in @f, 6*9880d681SAndroid Build Coastguard Worker; even though @hook_me doesn't mod or ref @a. 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind ssp uwtable 9*9880d681SAndroid Build Coastguard Workerdefine weak i32 @hook_me() { 10*9880d681SAndroid Build Coastguard Worker ret i32 0 11*9880d681SAndroid Build Coastguard Worker} 12*9880d681SAndroid Build Coastguard Worker 13*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind ssp uwtable 14*9880d681SAndroid Build Coastguard Workerdefine i32 @f() { 15*9880d681SAndroid Build Coastguard Worker %1 = alloca i32, align 4 16*9880d681SAndroid Build Coastguard Worker store i32 4, i32* @a, align 4 17*9880d681SAndroid Build Coastguard Worker %2 = call i32 @hook_me() 18*9880d681SAndroid Build Coastguard Worker ; CHECK: load i32, i32* @a, align 4 19*9880d681SAndroid Build Coastguard Worker %3 = load i32, i32* @a, align 4 20*9880d681SAndroid Build Coastguard Worker %4 = add nsw i32 %3, %2 21*9880d681SAndroid Build Coastguard Worker store i32 %4, i32* @a, align 4 22*9880d681SAndroid Build Coastguard Worker %5 = load i32, i32* %1 23*9880d681SAndroid Build Coastguard Worker ret i32 %5 24*9880d681SAndroid Build Coastguard Worker} 25