mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-28 19:31:58 +00:00
70 lines
1.9 KiB
LLVM
70 lines
1.9 KiB
LLVM
|
; Test 64-bit atomic subtractions, z196 version.
|
||
|
|
;
|
||
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
|
||
|
|
|
||
|
|
; Check addition of a variable.
|
||
|
|
define i64 @f1(i64 %dummy, i64 *%src, i64 %b) {
|
||
|
|
; CHECK-LABEL: f1:
|
||
|
|
; CHECK: lcgr [[NEG:%r[0-5]]], %r4
|
||
|
|
; CHECK: laag %r2, [[NEG]], 0(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%res = atomicrmw sub i64 *%src, i64 %b seq_cst
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check addition of 1, which needs a temporary.
|
||
|
|
define i64 @f2(i64 %dummy, i64 *%src) {
|
||
|
|
; CHECK-LABEL: f2:
|
||
|
|
; CHECK: lghi [[TMP:%r[0-5]]], -1
|
||
|
|
; CHECK: laag %r2, [[TMP]], 0(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%res = atomicrmw sub i64 *%src, i64 1 seq_cst
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the high end of the LAAG range.
|
||
|
|
define i64 @f3(i64 %dummy, i64 *%src, i64 %b) {
|
||
|
|
; CHECK-LABEL: f3:
|
||
|
|
; CHECK: lcgr [[NEG:%r[0-5]]], %r4
|
||
|
|
; CHECK: laag %r2, [[NEG]], 524280(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr = getelementptr i64 *%src, i64 65535
|
||
|
|
%res = atomicrmw sub i64 *%ptr, i64 %b seq_cst
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the next doubleword up, which needs separate address logic.
|
||
|
|
define i64 @f4(i64 %dummy, i64 *%src, i64 %b) {
|
||
|
|
; CHECK-LABEL: f4:
|
||
|
|
; CHECK-DAG: lcgr [[NEG:%r[0-5]]], %r4
|
||
|
|
; CHECK-DAG: agfi %r3, 524288
|
||
|
|
; CHECK: laag %r2, [[NEG]], 0(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr = getelementptr i64 *%src, i64 65536
|
||
|
|
%res = atomicrmw sub i64 *%ptr, i64 %b seq_cst
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the low end of the LAAG range.
|
||
|
|
define i64 @f5(i64 %dummy, i64 *%src, i64 %b) {
|
||
|
|
; CHECK-LABEL: f5:
|
||
|
|
; CHECK: lcgr [[NEG:%r[0-5]]], %r4
|
||
|
|
; CHECK: laag %r2, [[NEG]], -524288(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr = getelementptr i64 *%src, i64 -65536
|
||
|
|
%res = atomicrmw sub i64 *%ptr, i64 %b seq_cst
|
||
|
|
ret i64 %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the next doubleword down, which needs separate address logic.
|
||
|
|
define i64 @f6(i64 %dummy, i64 *%src, i64 %b) {
|
||
|
|
; CHECK-LABEL: f6:
|
||
|
|
; CHECK-DAG: lcgr [[NEG:%r[0-5]]], %r4
|
||
|
|
; CHECK-DAG: agfi %r3, -524296
|
||
|
|
; CHECK: laag %r2, [[NEG]], 0(%r3)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr = getelementptr i64 *%src, i64 -65537
|
||
|
|
%res = atomicrmw sub i64 *%ptr, i64 %b seq_cst
|
||
|
|
ret i64 %res
|
||
|
|
}
|