1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; Don't assume that external global variables or those with weak linkage have 4*9880d681SAndroid Build Coastguard Worker; their preferred alignment. They may only have the ABI minimum alignment. 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Workertarget datalayout = "i32:8:32" 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker@A = external global i32 9*9880d681SAndroid Build Coastguard Worker@B = weak_odr global i32 0 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Worker@C = available_externally global <4 x i32> zeroinitializer, align 4 12*9880d681SAndroid Build Coastguard Worker; CHECK: @C = available_externally global <4 x i32> zeroinitializer, align 4 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Workerdefine i64 @foo(i64 %a) { 15*9880d681SAndroid Build Coastguard Worker %t = ptrtoint i32* @A to i64 16*9880d681SAndroid Build Coastguard Worker %s = shl i64 %a, 3 17*9880d681SAndroid Build Coastguard Worker %r = or i64 %t, %s 18*9880d681SAndroid Build Coastguard Worker %q = add i64 %r, 1 19*9880d681SAndroid Build Coastguard Worker ret i64 %q 20*9880d681SAndroid Build Coastguard Worker} 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define i64 @foo(i64 %a) 23*9880d681SAndroid Build Coastguard Worker; CHECK: %s = shl i64 %a, 3 24*9880d681SAndroid Build Coastguard Worker; CHECK: %r = or i64 %s, ptrtoint (i32* @A to i64) 25*9880d681SAndroid Build Coastguard Worker; CHECK: %q = add i64 %r, 1 26*9880d681SAndroid Build Coastguard Worker; CHECK: ret i64 %q 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Workerdefine i32 @bar() { 29*9880d681SAndroid Build Coastguard Worker %r = load i32, i32* @B, align 1 30*9880d681SAndroid Build Coastguard Worker ret i32 %r 31*9880d681SAndroid Build Coastguard Worker} 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: @bar() 34*9880d681SAndroid Build Coastguard Worker; CHECK: align 1 35*9880d681SAndroid Build Coastguard Worker 36*9880d681SAndroid Build Coastguard Workerdefine void @vec_store() { 37*9880d681SAndroid Build Coastguard Worker store <4 x i32> <i32 0, i32 1, i32 2, i32 3>, <4 x i32>* @C, align 4 38*9880d681SAndroid Build Coastguard Worker ret void 39*9880d681SAndroid Build Coastguard Worker} 40*9880d681SAndroid Build Coastguard Worker; CHECK: define void @vec_store() 41*9880d681SAndroid Build Coastguard Worker; CHECK: store <4 x i32> <i32 0, i32 1, i32 2, i32 3>, <4 x i32>* @C, align 4 42