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gerrit-public.fairphone.software / toolchain / llvm-project / 81fe1fbf4abd00b24e078a80cb15a2d2c1343f11 / . / llvm / test / CodeGen / SystemZ / atomicrmw-xor-03.ll
blob: d719d0bd7140e03571ea1410f5c084ee6b92a205 [file] [log] [blame]
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]1; Test 32-bit atomic XORs.
2;
Richard Sandiford0175b4a2013-07-19 16:21:55 +0000[diff] [blame]3; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]4
5; Check XORs of a variable.
6define i32 @f1(i32 %dummy, i32 *%src, i32 %b) {
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]7; CHECK-LABEL: f1:
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]8; CHECK: l %r2, 0(%r3)
9; CHECK: [[LABEL:\.[^ ]*]]:
10; CHECK: lr %r0, %r2
11; CHECK: xr %r0, %r4
12; CHECK: cs %r2, %r0, 0(%r3)
Richard Sandiford3d768e32013-07-31 12:30:20 +0000[diff] [blame]13; CHECK: jl [[LABEL]]
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]14; CHECK: br %r14
15 %res = atomicrmw xor i32 *%src, i32 %b seq_cst
16 ret i32 %res
17}
18
19; Check the lowest useful constant.
20define i32 @f2(i32 %dummy, i32 *%src) {
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]21; CHECK-LABEL: f2:
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]22; CHECK: l %r2, 0(%r3)
23; CHECK: [[LABEL:\.[^ ]*]]:
24; CHECK: lr %r0, %r2
25; CHECK: xilf %r0, 1
26; CHECK: cs %r2, %r0, 0(%r3)
Richard Sandiford3d768e32013-07-31 12:30:20 +0000[diff] [blame]27; CHECK: jl [[LABEL]]
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]28; CHECK: br %r14
29 %res = atomicrmw xor i32 *%src, i32 1 seq_cst
30 ret i32 %res
31}
32
33; Check an arbitrary constant.
34define i32 @f3(i32 %dummy, i32 *%src) {
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]35; CHECK-LABEL: f3:
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]36; CHECK: xilf %r0, 3000000000
37; CHECK: br %r14
38 %res = atomicrmw xor i32 *%src, i32 3000000000 seq_cst
39 ret i32 %res
40}
41
42; Check bitwise negation.
43define i32 @f4(i32 %dummy, i32 *%src) {
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]44; CHECK-LABEL: f4:
Ulrich Weigand9e3577f2013-05-06 16:17:29 +0000[diff] [blame]45; CHECK: xilf %r0, 4294967295
46; CHECK: br %r14
47 %res = atomicrmw xor i32 *%src, i32 -1 seq_cst
48 ret i32 %res
49}