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https://github.com/c64scene-ar/llvm-6502.git
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3382a84074
NEON is not IEEE 754 compliant, so we should avoid lowering single-precision floating point operations with NEON unless unsafe-math is turned on. The equivalent VFP instructions are IEEE 754 compliant, but in some cores they're much slower, so some archs/OSs might still request it to be on by default, such as Swift and Darwin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177651 91177308-0d34-0410-b5e6-96231b3b80d8
82 lines
1.9 KiB
LLVM
82 lines
1.9 KiB
LLVM
; RUN: llc < %s -march=arm -mcpu=swift | FileCheck %s
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define float @fmin_ole(float %x) nounwind {
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;CHECK: fmin_ole:
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;CHECK: vmin.f32
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%cond = fcmp ole float 1.0, %x
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%min1 = select i1 %cond, float 1.0, float %x
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ret float %min1
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}
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define float @fmin_ole_zero(float %x) nounwind {
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;CHECK: fmin_ole_zero:
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;CHECK-NOT: vmin.f32
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%cond = fcmp ole float 0.0, %x
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%min1 = select i1 %cond, float 0.0, float %x
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ret float %min1
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}
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define float @fmin_ult(float %x) nounwind {
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;CHECK: fmin_ult:
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;CHECK: vmin.f32
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%cond = fcmp ult float %x, 1.0
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%min1 = select i1 %cond, float %x, float 1.0
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ret float %min1
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}
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define float @fmax_ogt(float %x) nounwind {
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;CHECK: fmax_ogt:
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;CHECK: vmax.f32
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%cond = fcmp ogt float 1.0, %x
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%max1 = select i1 %cond, float 1.0, float %x
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ret float %max1
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}
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define float @fmax_uge(float %x) nounwind {
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;CHECK: fmax_uge:
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;CHECK: vmax.f32
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%cond = fcmp uge float %x, 1.0
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%max1 = select i1 %cond, float %x, float 1.0
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ret float %max1
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}
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define float @fmax_uge_zero(float %x) nounwind {
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;CHECK: fmax_uge_zero:
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;CHECK-NOT: vmax.f32
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%cond = fcmp uge float %x, 0.0
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%max1 = select i1 %cond, float %x, float 0.0
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ret float %max1
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}
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define float @fmax_olt_reverse(float %x) nounwind {
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;CHECK: fmax_olt_reverse:
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;CHECK: vmax.f32
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%cond = fcmp olt float %x, 1.0
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%max1 = select i1 %cond, float 1.0, float %x
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ret float %max1
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}
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define float @fmax_ule_reverse(float %x) nounwind {
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;CHECK: fmax_ule_reverse:
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;CHECK: vmax.f32
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%cond = fcmp ult float 1.0, %x
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%max1 = select i1 %cond, float %x, float 1.0
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ret float %max1
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}
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define float @fmin_oge_reverse(float %x) nounwind {
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;CHECK: fmin_oge_reverse:
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;CHECK: vmin.f32
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%cond = fcmp oge float %x, 1.0
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%min1 = select i1 %cond, float 1.0, float %x
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ret float %min1
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}
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define float @fmin_ugt_reverse(float %x) nounwind {
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;CHECK: fmin_ugt_reverse:
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;CHECK: vmin.f32
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%cond = fcmp ugt float 1.0, %x
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%min1 = select i1 %cond, float %x, float 1.0
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ret float %min1
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}
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