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05a4d2642b
Making use of the recently-added ISD::FROUND, which allows for custom lowering of round(), the PPC backend will now map frin to round(). Previously, we had been using frin to lower nearbyint() (and rint() via some custom lowering to handle the extra fenv flags requirements), but only in fast-math mode because frin does not tie-to-even. Several users had complained about this behavior, and this new mapping of frin to round is certainly more appropriate (and does not require fast-math mode). In effect, this reverts r178362 (and part of r178337, replacing the nearbyint mapping with the round mapping). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187960 91177308-0d34-0410-b5e6-96231b3b80d8
85 lines
1.9 KiB
LLVM
85 lines
1.9 KiB
LLVM
; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s
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target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f128:128:128-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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define float @test1(float %x) nounwind {
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%call = tail call float @floorf(float %x) nounwind readnone
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ret float %call
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; CHECK-LABEL: test1:
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; CHECK: frim 1, 1
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}
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declare float @floorf(float) nounwind readnone
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define double @test2(double %x) nounwind {
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%call = tail call double @floor(double %x) nounwind readnone
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ret double %call
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; CHECK-LABEL: test2:
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; CHECK: frim 1, 1
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}
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declare double @floor(double) nounwind readnone
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define float @test3(float %x) nounwind {
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%call = tail call float @roundf(float %x) nounwind readnone
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ret float %call
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; CHECK-LABEL: test3:
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; CHECK: frin 1, 1
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}
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declare float @roundf(float) nounwind readnone
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define double @test4(double %x) nounwind {
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%call = tail call double @round(double %x) nounwind readnone
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ret double %call
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; CHECK-LABEL: test4:
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; CHECK: frin 1, 1
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}
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declare double @round(double) nounwind readnone
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define float @test5(float %x) nounwind {
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%call = tail call float @ceilf(float %x) nounwind readnone
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ret float %call
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; CHECK-LABEL: test5:
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; CHECK: frip 1, 1
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}
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declare float @ceilf(float) nounwind readnone
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define double @test6(double %x) nounwind {
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%call = tail call double @ceil(double %x) nounwind readnone
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ret double %call
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; CHECK-LABEL: test6:
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; CHECK: frip 1, 1
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}
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declare double @ceil(double) nounwind readnone
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define float @test9(float %x) nounwind {
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%call = tail call float @truncf(float %x) nounwind readnone
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ret float %call
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; CHECK-LABEL: test9:
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; CHECK: friz 1, 1
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}
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declare float @truncf(float) nounwind readnone
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define double @test10(double %x) nounwind {
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%call = tail call double @trunc(double %x) nounwind readnone
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ret double %call
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; CHECK-LABEL: test10:
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; CHECK: friz 1, 1
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}
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declare double @trunc(double) nounwind readnone
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