74a09bd1ec
Improve tests for atomic loads and stores, mainly by testing 128-bit atomic load and store instructions both with and w/out natural alignment.
27 lines
774 B
LLVM
27 lines
774 B
LLVM
; Test long double atomic stores. The atomic store is converted to i128 by
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; the AtomicExpand pass.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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define void @f1(ptr %dst, ptr %src) {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: lg %r1, 8(%r3)
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; CHECK-NEXT: lg %r0, 0(%r3)
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; CHECK-NEXT: stpq %r0, 0(%r2)
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; CHECK-NEXT: bcr 1{{[45]}}, %r0
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; CHECK-NEXT: br %r14
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%val = load fp128, ptr %src, align 8
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store atomic fp128 %val, ptr %dst seq_cst, align 16
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ret void
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}
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define void @f2(ptr %dst, ptr %src) {
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; CHECK-LABEL: f2:
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; CHECK: brasl %r14, __atomic_store@PLT
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%val = load fp128, ptr %src, align 8
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store atomic fp128 %val, ptr %dst seq_cst, align 8
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ret void
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}
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