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Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
39 lines
952 B
LLVM
39 lines
952 B
LLVM
; Test floating-point negation.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Test f32.
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define float @f1(float %f) {
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; CHECK-LABEL: f1:
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; CHECK: lcebr %f0, %f0
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; CHECK: br %r14
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%res = fsub float -0.0, %f
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ret float %res
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}
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; Test f64.
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define double @f2(double %f) {
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; CHECK-LABEL: f2:
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; CHECK: lcdbr %f0, %f0
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; CHECK: br %r14
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%res = fsub double -0.0, %f
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ret double %res
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}
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; Test f128. With the loads and stores, a pure negation would probably
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; be better implemented using an XI on the upper byte. Do some extra
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; processing so that using FPRs is unequivocally better.
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define void @f3(fp128 *%ptr, fp128 *%ptr2) {
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; CHECK-LABEL: f3:
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; CHECK: lcxbr
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; CHECK: dxbr
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; CHECK: br %r14
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%orig = load fp128 , fp128 *%ptr
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%negzero = fpext float -0.0 to fp128
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%neg = fsub fp128 0xL00000000000000008000000000000000, %orig
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%op2 = load fp128 , fp128 *%ptr2
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%res = fdiv fp128 %neg, %op2
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store fp128 %res, fp128 *%ptr
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ret void
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}
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