1*9880d681SAndroid Build Coastguard Worker; Test 64-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 i64 @f1(i64 %dummy, i64 *%src, i64 %b) { 7*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f1: 8*9880d681SAndroid Build Coastguard Worker; CHECK: lg %r2, 0(%r3) 9*9880d681SAndroid Build Coastguard Worker; CHECK: [[LABEL:\.[^ ]*]]: 10*9880d681SAndroid Build Coastguard Worker; CHECK: lgr %r0, %r2 11*9880d681SAndroid Build Coastguard Worker; CHECK: xgr %r0, %r4 12*9880d681SAndroid Build Coastguard Worker; CHECK: csg %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 i64 *%src, i64 %b seq_cst 16*9880d681SAndroid Build Coastguard Worker ret i64 %res 17*9880d681SAndroid Build Coastguard Worker} 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Worker; Check the lowest useful XILF value. 20*9880d681SAndroid Build Coastguard Workerdefine i64 @f2(i64 %dummy, i64 *%src) { 21*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f2: 22*9880d681SAndroid Build Coastguard Worker; CHECK: lg %r2, 0(%r3) 23*9880d681SAndroid Build Coastguard Worker; CHECK: [[LABEL:\.[^ ]*]]: 24*9880d681SAndroid Build Coastguard Worker; CHECK: lgr %r0, %r2 25*9880d681SAndroid Build Coastguard Worker; CHECK: xilf %r0, 1 26*9880d681SAndroid Build Coastguard Worker; CHECK: csg %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 i64 *%src, i64 1 seq_cst 30*9880d681SAndroid Build Coastguard Worker ret i64 %res 31*9880d681SAndroid Build Coastguard Worker} 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Worker; Check the high end of the XILF range. 34*9880d681SAndroid Build Coastguard Workerdefine i64 @f3(i64 %dummy, i64 *%src) { 35*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f3: 36*9880d681SAndroid Build Coastguard Worker; CHECK: xilf %r0, 4294967295 37*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 38*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i64 *%src, i64 4294967295 seq_cst 39*9880d681SAndroid Build Coastguard Worker ret i64 %res 40*9880d681SAndroid Build Coastguard Worker} 41*9880d681SAndroid Build Coastguard Worker 42*9880d681SAndroid Build Coastguard Worker; Check the lowest useful XIHF value, which is one greater than above. 43*9880d681SAndroid Build Coastguard Workerdefine i64 @f4(i64 %dummy, i64 *%src) { 44*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f4: 45*9880d681SAndroid Build Coastguard Worker; CHECK: xihf %r0, 1 46*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 47*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i64 *%src, i64 4294967296 seq_cst 48*9880d681SAndroid Build Coastguard Worker ret i64 %res 49*9880d681SAndroid Build Coastguard Worker} 50*9880d681SAndroid Build Coastguard Worker 51*9880d681SAndroid Build Coastguard Worker; Check the next value up, which must use a register. (We could use 52*9880d681SAndroid Build Coastguard Worker; combinations of XIH* and XIL* instead, but that isn't implemented.) 53*9880d681SAndroid Build Coastguard Workerdefine i64 @f5(i64 %dummy, i64 *%src) { 54*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f5: 55*9880d681SAndroid Build Coastguard Worker; CHECK: xgr 56*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 57*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i64 *%src, i64 4294967297 seq_cst 58*9880d681SAndroid Build Coastguard Worker ret i64 %res 59*9880d681SAndroid Build Coastguard Worker} 60*9880d681SAndroid Build Coastguard Worker 61*9880d681SAndroid Build Coastguard Worker; Check the high end of the XIHF range. 62*9880d681SAndroid Build Coastguard Workerdefine i64 @f6(i64 %dummy, i64 *%src) { 63*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f6: 64*9880d681SAndroid Build Coastguard Worker; CHECK: xihf %r0, 4294967295 65*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 66*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i64 *%src, i64 -4294967296 seq_cst 67*9880d681SAndroid Build Coastguard Worker ret i64 %res 68*9880d681SAndroid Build Coastguard Worker} 69*9880d681SAndroid Build Coastguard Worker 70*9880d681SAndroid Build Coastguard Worker; Check the next value up, which must use a register. 71*9880d681SAndroid Build Coastguard Workerdefine i64 @f7(i64 %dummy, i64 *%src) { 72*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: f7: 73*9880d681SAndroid Build Coastguard Worker; CHECK: xgr 74*9880d681SAndroid Build Coastguard Worker; CHECK: br %r14 75*9880d681SAndroid Build Coastguard Worker %res = atomicrmw xor i64 *%src, i64 -4294967295 seq_cst 76*9880d681SAndroid Build Coastguard Worker ret i64 %res 77*9880d681SAndroid Build Coastguard Worker} 78