a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
78 lines
1.9 KiB
LLVM
78 lines
1.9 KiB
LLVM
; Test 64-bit atomic XORs.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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; Check XORs of a variable.
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define i64 @f1(i64 %dummy, ptr %src, i64 %b) {
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; CHECK-LABEL: f1:
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; CHECK: lg %r2, 0(%r3)
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; CHECK: [[LABEL:\.[^ ]*]]:
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; CHECK: lgr %r0, %r2
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; CHECK: xgr %r0, %r4
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; CHECK: csg %r2, %r0, 0(%r3)
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; CHECK: jl [[LABEL]]
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; CHECK: br %r14
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%res = atomicrmw xor ptr %src, i64 %b seq_cst
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ret i64 %res
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}
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; Check the lowest useful XILF value.
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define i64 @f2(i64 %dummy, ptr %src) {
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; CHECK-LABEL: f2:
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; CHECK: lg %r2, 0(%r3)
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; CHECK: [[LABEL:\.[^ ]*]]:
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; CHECK: lgr %r0, %r2
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; CHECK: xilf %r0, 1
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; CHECK: csg %r2, %r0, 0(%r3)
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; CHECK: jl [[LABEL]]
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; CHECK: br %r14
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%res = atomicrmw xor ptr %src, i64 1 seq_cst
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ret i64 %res
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}
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; Check the high end of the XILF range.
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define i64 @f3(i64 %dummy, ptr %src) {
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; CHECK-LABEL: f3:
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; CHECK: xilf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw xor ptr %src, i64 4294967295 seq_cst
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ret i64 %res
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}
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; Check the lowest useful XIHF value, which is one greater than above.
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define i64 @f4(i64 %dummy, ptr %src) {
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; CHECK-LABEL: f4:
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; CHECK: xihf %r0, 1
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; CHECK: br %r14
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%res = atomicrmw xor ptr %src, i64 4294967296 seq_cst
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ret i64 %res
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}
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; Check the next value up, which must use a register. (We could use
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; combinations of XIH* and XIL* instead, but that isn't implemented.)
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define i64 @f5(i64 %dummy, ptr %src) {
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; CHECK-LABEL: f5:
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; CHECK: xgr
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; CHECK: br %r14
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%res = atomicrmw xor ptr %src, i64 4294967297 seq_cst
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ret i64 %res
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}
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; Check the high end of the XIHF range.
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define i64 @f6(i64 %dummy, ptr %src) {
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; CHECK-LABEL: f6:
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; CHECK: xihf %r0, 4294967295
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; CHECK: br %r14
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%res = atomicrmw xor ptr %src, i64 -4294967296 seq_cst
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ret i64 %res
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}
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; Check the next value up, which must use a register.
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define i64 @f7(i64 %dummy, ptr %src) {
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; CHECK-LABEL: f7:
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; CHECK: xgr
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; CHECK: br %r14
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%res = atomicrmw xor ptr %src, i64 -4294967295 seq_cst
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ret i64 %res
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}
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