1*9880d681SAndroid Build Coastguard Worker; Test 32-bit atomic XORs. 2*9880d681SAndroid Build Coastguard Worker; 3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker; Check XORs of a variable. 6*9880d681SAndroid Build Coastguard Workerdefine i32 @f1(i32 %dummy, i32 *%src, i32 %b) { 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 8*9880d681SAndroid Build Coastguard Worker; CHECK: l %r2, 0(%r3) 9*9880d681SAndroid Build Coastguard Worker; CHECK: [[LABEL:\.[^ ]*]]: 10*9880d681SAndroid Build Coastguard Worker; CHECK: lr %r0, %r2 11*9880d681SAndroid Build Coastguard Worker; CHECK: xr %r0, %r4 12*9880d681SAndroid Build Coastguard Worker; CHECK: cs %r2, %r0, 0(%r3) 13*9880d681SAndroid Build Coastguard Worker; CHECK: jl [[LABEL]] 14*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 15*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i32 *%src, i32 %b seq_cst 16*9880d681SAndroid Build Coastguard Worker ret i32 %res 17*9880d681SAndroid Build Coastguard Worker} 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker; Check the lowest useful constant. 20*9880d681SAndroid Build Coastguard Workerdefine i32 @f2(i32 %dummy, i32 *%src) { 21*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 22*9880d681SAndroid Build Coastguard Worker; CHECK: l %r2, 0(%r3) 23*9880d681SAndroid Build Coastguard Worker; CHECK: [[LABEL:\.[^ ]*]]: 24*9880d681SAndroid Build Coastguard Worker; CHECK: lr %r0, %r2 25*9880d681SAndroid Build Coastguard Worker; CHECK: xilf %r0, 1 26*9880d681SAndroid Build Coastguard Worker; CHECK: cs %r2, %r0, 0(%r3) 27*9880d681SAndroid Build Coastguard Worker; CHECK: jl [[LABEL]] 28*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 29*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i32 *%src, i32 1 seq_cst 30*9880d681SAndroid Build Coastguard Worker ret i32 %res 31*9880d681SAndroid Build Coastguard Worker} 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Worker; Check an arbitrary constant. 34*9880d681SAndroid Build Coastguard Workerdefine i32 @f3(i32 %dummy, i32 *%src) { 35*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3: 36*9880d681SAndroid Build Coastguard Worker; CHECK: xilf %r0, 3000000000 37*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 38*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i32 *%src, i32 3000000000 seq_cst 39*9880d681SAndroid Build Coastguard Worker ret i32 %res 40*9880d681SAndroid Build Coastguard Worker} 41*9880d681SAndroid Build Coastguard Worker 42*9880d681SAndroid Build Coastguard Worker; Check bitwise negation. 43*9880d681SAndroid Build Coastguard Workerdefine i32 @f4(i32 %dummy, i32 *%src) { 44*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f4: 45*9880d681SAndroid Build Coastguard Worker; CHECK: xilf %r0, 4294967295 46*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 47*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i32 *%src, i32 -1 seq_cst 48*9880d681SAndroid Build Coastguard Worker ret i32 %res 49*9880d681SAndroid Build Coastguard Worker} 50