You've already forked linux-packaging-mono
132 lines
4.2 KiB
LLVM
132 lines
4.2 KiB
LLVM
; Test 64-bit compare and swap.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check CDSG without a displacement.
|
|
define i128 @f1(i128 %cmp, i128 %swap, i128 *%src) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK-DAG: lg %r1, 8(%r4)
|
|
; CHECK-DAG: lg %r0, 0(%r4)
|
|
; CHECK-DAG: lg %r13, 8(%r3)
|
|
; CHECK-DAG: lg %r12, 0(%r3)
|
|
; CHECK: cdsg %r12, %r0, 0(%r5)
|
|
; CHECK-DAG: stg %r13, 8(%r2)
|
|
; CHECK-DAG: stg %r12, 0(%r2)
|
|
; CHECK: br %r14
|
|
%pairval = cmpxchg i128 *%src, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check the high end of the aligned CDSG range.
|
|
define i128 @f2(i128 %cmp, i128 %swap, i128 *%src) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, 524272(%r5)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i128, i128 *%src, i128 32767
|
|
%pairval = cmpxchg i128 *%ptr, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check the next doubleword up, which needs separate address logic.
|
|
; Other sequences besides this one would be OK.
|
|
define i128 @f3(i128 %cmp, i128 %swap, i128 *%src) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: agfi %r5, 524288
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, 0(%r5)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i128, i128 *%src, i128 32768
|
|
%pairval = cmpxchg i128 *%ptr, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check the high end of the negative aligned CDSG range.
|
|
define i128 @f4(i128 %cmp, i128 %swap, i128 *%src) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, -16(%r5)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i128, i128 *%src, i128 -1
|
|
%pairval = cmpxchg i128 *%ptr, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check the low end of the CDSG range.
|
|
define i128 @f5(i128 %cmp, i128 %swap, i128 *%src) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, -524288(%r5)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i128, i128 *%src, i128 -32768
|
|
%pairval = cmpxchg i128 *%ptr, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check the next doubleword down, which needs separate address logic.
|
|
; Other sequences besides this one would be OK.
|
|
define i128 @f6(i128 %cmp, i128 %swap, i128 *%src) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: agfi %r5, -524304
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, 0(%r5)
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i128, i128 *%src, i128 -32769
|
|
%pairval = cmpxchg i128 *%ptr, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check that CDSG does not allow an index.
|
|
define i128 @f7(i128 %cmp, i128 %swap, i64 %src, i64 %index) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK: agr %r5, %r6
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, 0(%r5)
|
|
; CHECK: br %r14
|
|
%add1 = add i64 %src, %index
|
|
%ptr = inttoptr i64 %add1 to i128 *
|
|
%pairval = cmpxchg i128 *%ptr, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check that a constant %cmp value is loaded into a register first.
|
|
define i128 @f8(i128 %swap, i128 *%ptr) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: lghi {{%r[0-9]+}}, 1001
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, 0(%r4)
|
|
; CHECK: br %r14
|
|
%pairval = cmpxchg i128 *%ptr, i128 1001, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check that a constant %swap value is loaded into a register first.
|
|
define i128 @f9(i128 %cmp, i128 *%ptr) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: lghi {{%r[0-9]+}}, 1002
|
|
; CHECK: cdsg {{%r[0-9]+}}, {{%r[0-9]+}}, 0(%r4)
|
|
; CHECK: br %r14
|
|
%pairval = cmpxchg i128 *%ptr, i128 %cmp, i128 1002 seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 0
|
|
ret i128 %val
|
|
}
|
|
|
|
; Check generating the comparison result.
|
|
; CHECK-LABEL: f10
|
|
; CHECK-DAG: lg %r1, 8(%r3)
|
|
; CHECK-DAG: lg %r0, 0(%r3)
|
|
; CHECK-DAG: lg %r13, 8(%r2)
|
|
; CHECK-DAG: lg %r12, 0(%r2)
|
|
; CHECK: cdsg %r12, %r0, 0(%r4)
|
|
; CHECK-NEXT: ipm %r2
|
|
; CHECK-NEXT: afi %r2, -268435456
|
|
; CHECK-NEXT: srl %r2, 31
|
|
; CHECK: br %r14
|
|
define i32 @f10(i128 %cmp, i128 %swap, i128 *%src) {
|
|
%pairval = cmpxchg i128 *%src, i128 %cmp, i128 %swap seq_cst seq_cst
|
|
%val = extractvalue { i128, i1 } %pairval, 1
|
|
%res = zext i1 %val to i32
|
|
ret i32 %res
|
|
}
|