mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 11:42:57 +01:00
78 lines
1.9 KiB
LLVM
78 lines
1.9 KiB
LLVM
; Test 64-bit atomic XORs.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check XORs of a variable.
|
|
define i64 @f1(i64 %dummy, i64 *%src, i64 %b) {
|
|
; CHECK: f1:
|
|
; CHECK: lg %r2, 0(%r3)
|
|
; CHECK: [[LABEL:\.[^ ]*]]:
|
|
; CHECK: lgr %r0, %r2
|
|
; CHECK: xgr %r0, %r4
|
|
; CHECK: csg %r2, %r0, 0(%r3)
|
|
; CHECK: jlh [[LABEL]]
|
|
; CHECK: br %r14
|
|
%res = atomicrmw xor i64 *%src, i64 %b seq_cst
|
|
ret i64 %res
|
|
}
|
|
|
|
; Check the lowest useful XILF value.
|
|
define i64 @f2(i64 %dummy, i64 *%src) {
|
|
; CHECK: f2:
|
|
; CHECK: lg %r2, 0(%r3)
|
|
; CHECK: [[LABEL:\.[^ ]*]]:
|
|
; CHECK: lgr %r0, %r2
|
|
; CHECK: xilf %r0, 1
|
|
; CHECK: csg %r2, %r0, 0(%r3)
|
|
; CHECK: jlh [[LABEL]]
|
|
; CHECK: br %r14
|
|
%res = atomicrmw xor i64 *%src, i64 1 seq_cst
|
|
ret i64 %res
|
|
}
|
|
|
|
; Check the high end of the XILF range.
|
|
define i64 @f3(i64 %dummy, i64 *%src) {
|
|
; CHECK: f3:
|
|
; CHECK: xilf %r0, 4294967295
|
|
; CHECK: br %r14
|
|
%res = atomicrmw xor i64 *%src, i64 4294967295 seq_cst
|
|
ret i64 %res
|
|
}
|
|
|
|
; Check the lowest useful XIHF value, which is one greater than above.
|
|
define i64 @f4(i64 %dummy, i64 *%src) {
|
|
; CHECK: f4:
|
|
; CHECK: xihf %r0, 1
|
|
; CHECK: br %r14
|
|
%res = atomicrmw xor i64 *%src, i64 4294967296 seq_cst
|
|
ret i64 %res
|
|
}
|
|
|
|
; Check the next value up, which must use a register. (We could use
|
|
; combinations of XIH* and XIL* instead, but that isn't implemented.)
|
|
define i64 @f5(i64 %dummy, i64 *%src) {
|
|
; CHECK: f5:
|
|
; CHECK: xgr
|
|
; CHECK: br %r14
|
|
%res = atomicrmw xor i64 *%src, i64 4294967297 seq_cst
|
|
ret i64 %res
|
|
}
|
|
|
|
; Check the high end of the XIHF range.
|
|
define i64 @f6(i64 %dummy, i64 *%src) {
|
|
; CHECK: f6:
|
|
; CHECK: xihf %r0, 4294967295
|
|
; CHECK: br %r14
|
|
%res = atomicrmw xor i64 *%src, i64 -4294967296 seq_cst
|
|
ret i64 %res
|
|
}
|
|
|
|
; Check the next value up, which must use a register.
|
|
define i64 @f7(i64 %dummy, i64 *%src) {
|
|
; CHECK: f7:
|
|
; CHECK: xgr
|
|
; CHECK: br %r14
|
|
%res = atomicrmw xor i64 *%src, i64 -4294967295 seq_cst
|
|
ret i64 %res
|
|
}
|