65 lines
1.7 KiB
LLVM
65 lines
1.7 KiB
LLVM
; Test 32-bit atomic additions, z196 version.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
|
|
|
|
; Check addition of a variable.
|
|
define i32 @f1(i32 %dummy, i32 *%src, i32 %b) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: laa %r2, %r4, 0(%r3)
|
|
; CHECK: br %r14
|
|
%res = atomicrmw add i32 *%src, i32 %b seq_cst
|
|
ret i32 %res
|
|
}
|
|
|
|
; Check addition of 1, which needs a temporary.
|
|
define i32 @f2(i32 %dummy, i32 *%src) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: lhi [[TMP:%r[0-5]]], 1
|
|
; CHECK: laa %r2, [[TMP]], 0(%r3)
|
|
; CHECK: br %r14
|
|
%res = atomicrmw add i32 *%src, i32 1 seq_cst
|
|
ret i32 %res
|
|
}
|
|
|
|
; Check the high end of the LAA range.
|
|
define i32 @f3(i32 %dummy, i32 *%src, i32 %b) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: laa %r2, %r4, 524284(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i32, i32 *%src, i32 131071
|
|
%res = atomicrmw add i32 *%ptr, i32 %b seq_cst
|
|
ret i32 %res
|
|
}
|
|
|
|
; Check the next word up, which needs separate address logic.
|
|
define i32 @f4(i32 %dummy, i32 *%src, i32 %b) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: agfi %r3, 524288
|
|
; CHECK: laa %r2, %r4, 0(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i32, i32 *%src, i32 131072
|
|
%res = atomicrmw add i32 *%ptr, i32 %b seq_cst
|
|
ret i32 %res
|
|
}
|
|
|
|
; Check the low end of the LAA range.
|
|
define i32 @f5(i32 %dummy, i32 *%src, i32 %b) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: laa %r2, %r4, -524288(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i32, i32 *%src, i32 -131072
|
|
%res = atomicrmw add i32 *%ptr, i32 %b seq_cst
|
|
ret i32 %res
|
|
}
|
|
|
|
; Check the next word down, which needs separate address logic.
|
|
define i32 @f6(i32 %dummy, i32 *%src, i32 %b) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: agfi %r3, -524292
|
|
; CHECK: laa %r2, %r4, 0(%r3)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i32, i32 *%src, i32 -131073
|
|
%res = atomicrmw add i32 *%ptr, i32 %b seq_cst
|
|
ret i32 %res
|
|
}
|