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e6a923ea4b
Summary: Unsafe does not map well alone for each of these three cases as it is missing NoNan context when accessed directly with clang. I have migrated the fold guards to reflect the expectations of handing nan and zero contexts directly (NoNan, NSZ) and some tests with it. Unsafe does include NSZ, however there is already precedent for using the target option directly to reflect that context. Reviewers: spatel, wristow, hfinkel, craig.topper, arsenm Reviewed By: arsenm Subscribers: michele.scandale, wdng, javed.absar Differential Revision: https://reviews.llvm.org/D64450 llvm-svn: 365679
19 lines
389 B
LLVM
19 lines
389 B
LLVM
; RUN: llc -mcpu=cortex-a9 < %s | FileCheck -check-prefix=SAFE %s
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; RUN: llc -mcpu=cortex-a9 --enable-no-nans-fp-math < %s | FileCheck -check-prefix=FAST %s
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target triple = "armv7-apple-ios"
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; SAFE: test
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; FAST: test
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define float @test(float %x, float %y) {
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entry:
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; SAFE: vmul.f32
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; SAFE: vsub.f32
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; FAST: mov r0, #0
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%0 = fmul float %x, %y
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%1 = fsub float %0, %0
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ret float %1
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}
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