derek.holloway
7502bf64a4
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42 lines
1.2 KiB
LLVM
42 lines
1.2 KiB
LLVM
; Test atomic long double maximum.
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; Expect a libcall in a compare-and-swap loop.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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define void @f1(ptr %ret, ptr %src, ptr %b) {
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; CHECK-LABEL: f1:
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; CHECK: lgr [[SRC:%r[0-9]+]], %r3
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; CHECK: ld [[FBL:%f[0-9]+]], 0(%r4)
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; CHECK: ld [[FBH:%f[0-9]+]], 8(%r4)
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; CHECK: lpq [[RIL:%r[0-9]+]], 0(%r3)
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; CHECK: lgr [[RET:%r[0-9]+]], %r2
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; CHECK: ldgr [[FSL:%f[0-9]+]], [[RIL]]
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; CHECK: ldgr [[FSH:%f[0-9]+]],
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; CHECK: [[L:\.L.+]]:
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; CHECK: std [[FBL]], 160(%r15)
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; CHECK: std [[FBH]], 168(%r15)
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; CHECK: la %r2, 192(%r15)
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; CHECK: la %r3, 176(%r15)
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; CHECK: la %r4, 160(%r15)
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; CHECK: std [[FSL]], 176(%r15)
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; CHECK: std [[FSH]], 184(%r15)
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; CHECK: brasl %r14, fmaxl@PLT
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; CHECK: lg [[RH:%r[0-9]+]], 200(%r15)
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; CHECK: lg [[RL:%r[0-9]+]], 192(%r15)
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; CHECK: lgdr [[RSH:%r[0-9]+]], [[FSH]]
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; CHECK: lgdr [[RSL:%r[0-9]+]], [[FSL]]
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; CHECK: cdsg [[RSL]], [[RL]], 0([[SRC]])
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; CHECK: stg [[RSH]], 216(%r15)
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; CHECK: stg [[RSL]], 208(%r15)
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; CHECK: ld [[FSL]], 208(%r15)
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; CHECK: ld [[FSH]], 216(%r15)
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; CHECK: jl [[L]]
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; CHECK: std [[FSL]], 0([[RET]])
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; CHECK: std [[FSH]], 8([[RET]])
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; CHECK: br %r14
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%val = load fp128, ptr %b
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%res = atomicrmw fmax ptr %src, fp128 %val seq_cst
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store fp128 %res, ptr %ret
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ret void
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}
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