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94 lines
2.2 KiB
LLVM
94 lines
2.2 KiB
LLVM
; Test 32-bit atomic NANDs.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check NANDs of a variable.
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define i32 @f1(i32 %dummy, i32 *%src, i32 %b) {
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; CHECK: f1:
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; CHECK: l %r2, 0(%r3)
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; CHECK: [[LABEL:\.[^ ]*]]:
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; CHECK: lr %r0, %r2
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; CHECK: nr %r0, %r4
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; CHECK: xilf %r0, 4294967295
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; CHECK: cs %r2, %r0, 0(%r3)
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; CHECK: jlh [[LABEL]]
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 %b seq_cst
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ret i32 %res
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}
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; Check NANDs of 1.
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define i32 @f2(i32 %dummy, i32 *%src) {
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; CHECK: f2:
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; CHECK: l %r2, 0(%r3)
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; CHECK: [[LABEL:\.[^ ]*]]:
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; CHECK: lr %r0, %r2
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; CHECK: nilf %r0, 1
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; CHECK: xilf %r0, 4294967295
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; CHECK: cs %r2, %r0, 0(%r3)
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; CHECK: jlh [[LABEL]]
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 1 seq_cst
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ret i32 %res
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}
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; Check NANDs of the low end of the NILH range.
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define i32 @f3(i32 %dummy, i32 *%src) {
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; CHECK: f3:
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; CHECK: nilh %r0, 0
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; CHECK: xilf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 65535 seq_cst
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ret i32 %res
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}
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; Check the next value up, which must use NILF.
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define i32 @f4(i32 %dummy, i32 *%src) {
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; CHECK: f4:
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; CHECK: nilf %r0, 65536
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; CHECK: xilf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 65536 seq_cst
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ret i32 %res
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}
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; Check the largest useful NILL value.
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define i32 @f5(i32 %dummy, i32 *%src) {
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; CHECK: f5:
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; CHECK: nill %r0, 65534
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; CHECK: xilf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 -2 seq_cst
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ret i32 %res
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}
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; Check the low end of the NILL range.
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define i32 @f6(i32 %dummy, i32 *%src) {
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; CHECK: f6:
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; CHECK: nill %r0, 0
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; CHECK: xilf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 -65536 seq_cst
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ret i32 %res
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}
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; Check the largest useful NILH value, which is one less than the above.
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define i32 @f7(i32 %dummy, i32 *%src) {
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; CHECK: f7:
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; CHECK: nilh %r0, 65534
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; CHECK: xilf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 -65537 seq_cst
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ret i32 %res
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}
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; Check the highest useful NILF value, which is one less than the above.
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define i32 @f8(i32 %dummy, i32 *%src) {
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; CHECK: f8:
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; CHECK: nilf %r0, 4294901758
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; CHECK: xilf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw nand i32 *%src, i32 -65538 seq_cst
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ret i32 %res
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}
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