mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-22 09:29:31 +00:00
670e53977b
And fix a bug with the behavior of min/max instructions formed from fcmp uge comparisons. Also, use FiniteOnlyFPMath() for this code instead of UnsafeFPMath, as it is more specific. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82466 91177308-0d34-0410-b5e6-96231b3b80d8
393 lines
10 KiB
LLVM
393 lines
10 KiB
LLVM
; RUN: llc < %s -march=x86-64 -asm-verbose=false | FileCheck %s
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; Some of these patterns can be matched as SSE min or max. Some of
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; then can be matched provided that the operands are swapped.
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; Some of them can't be matched at all and require a comparison
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; and a conditional branch.
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; The naming convention is {,x_}{o,u}{gt,lt,ge,le}{,_inverse}
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; x_ : use 0.0 instead of %y
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; _inverse : swap the arms of the select.
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; CHECK: ogt:
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @ogt(double %x, double %y) nounwind {
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%c = fcmp ogt double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: olt:
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @olt(double %x, double %y) nounwind {
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%c = fcmp olt double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: ogt_inverse:
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @ogt_inverse(double %x, double %y) nounwind {
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%c = fcmp ogt double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: olt_inverse:
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @olt_inverse(double %x, double %y) nounwind {
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%c = fcmp olt double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: oge:
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; CHECK-NEXT: ucomisd %xmm1, %xmm0
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define double @oge(double %x, double %y) nounwind {
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%c = fcmp oge double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: ole:
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; CHECK-NEXT: ucomisd %xmm0, %xmm1
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define double @ole(double %x, double %y) nounwind {
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%c = fcmp ole double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: oge_inverse:
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; CHECK-NEXT: ucomisd %xmm1, %xmm0
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define double @oge_inverse(double %x, double %y) nounwind {
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%c = fcmp oge double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: ole_inverse:
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; CHECK-NEXT: ucomisd %xmm0, %xmm1
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define double @ole_inverse(double %x, double %y) nounwind {
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%c = fcmp ole double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: x_ogt:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ogt(double %x) nounwind {
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%c = fcmp ogt double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_olt:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_olt(double %x) nounwind {
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%c = fcmp olt double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_ogt_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ogt_inverse(double %x) nounwind {
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%c = fcmp ogt double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; CHECK: x_olt_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_olt_inverse(double %x) nounwind {
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%c = fcmp olt double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; CHECK: x_oge:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_oge(double %x) nounwind {
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%c = fcmp oge double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_ole:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ole(double %x) nounwind {
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%c = fcmp ole double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_oge_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_oge_inverse(double %x) nounwind {
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%c = fcmp oge double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; CHECK: x_ole_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ole_inverse(double %x) nounwind {
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%c = fcmp ole double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; CHECK: ugt:
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; CHECK-NEXT: ucomisd %xmm0, %xmm1
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define double @ugt(double %x, double %y) nounwind {
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%c = fcmp ugt double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: ult:
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; CHECK-NEXT: ucomisd %xmm1, %xmm0
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define double @ult(double %x, double %y) nounwind {
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%c = fcmp ult double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: ugt_inverse:
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; CHECK-NEXT: ucomisd %xmm0, %xmm1
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define double @ugt_inverse(double %x, double %y) nounwind {
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%c = fcmp ugt double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: ult_inverse:
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; CHECK-NEXT: ucomisd %xmm1, %xmm0
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define double @ult_inverse(double %x, double %y) nounwind {
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%c = fcmp ult double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: uge:
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @uge(double %x, double %y) nounwind {
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%c = fcmp uge double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: ule:
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @ule(double %x, double %y) nounwind {
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%c = fcmp ule double %x, %y
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%d = select i1 %c, double %x, double %y
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ret double %d
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}
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; CHECK: uge_inverse:
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @uge_inverse(double %x, double %y) nounwind {
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%c = fcmp uge double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: ule_inverse:
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @ule_inverse(double %x, double %y) nounwind {
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%c = fcmp ule double %x, %y
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%d = select i1 %c, double %y, double %x
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ret double %d
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}
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; CHECK: x_ugt:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ugt(double %x) nounwind {
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%c = fcmp ugt double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_ult:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ult(double %x) nounwind {
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%c = fcmp ult double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_ugt_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ugt_inverse(double %x) nounwind {
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%c = fcmp ugt double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; CHECK: x_ult_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ult_inverse(double %x) nounwind {
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%c = fcmp ult double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; CHECK: x_uge:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_uge(double %x) nounwind {
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%c = fcmp uge double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_ule:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ule(double %x) nounwind {
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%c = fcmp ule double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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ret double %d
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}
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; CHECK: x_uge_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_uge_inverse(double %x) nounwind {
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%c = fcmp uge double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; CHECK: x_ule_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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define double @x_ule_inverse(double %x) nounwind {
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%c = fcmp ule double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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ret double %d
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}
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; Test a few more misc. cases.
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; CHECK: clampTo3k_a:
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; CHECK: minsd
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define double @clampTo3k_a(double %x) nounwind readnone {
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entry:
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%0 = fcmp ogt double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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; CHECK: clampTo3k_b:
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; CHECK: minsd
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define double @clampTo3k_b(double %x) nounwind readnone {
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entry:
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%0 = fcmp uge double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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; CHECK: clampTo3k_c:
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; CHECK: maxsd
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define double @clampTo3k_c(double %x) nounwind readnone {
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entry:
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%0 = fcmp olt double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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; CHECK: clampTo3k_d:
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; CHECK: maxsd
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define double @clampTo3k_d(double %x) nounwind readnone {
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entry:
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%0 = fcmp ule double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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; CHECK: clampTo3k_e:
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; CHECK: maxsd
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define double @clampTo3k_e(double %x) nounwind readnone {
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entry:
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%0 = fcmp olt double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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; CHECK: clampTo3k_f:
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; CHECK: maxsd
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define double @clampTo3k_f(double %x) nounwind readnone {
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entry:
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%0 = fcmp ule double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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; CHECK: clampTo3k_g:
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; CHECK: minsd
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define double @clampTo3k_g(double %x) nounwind readnone {
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entry:
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%0 = fcmp ogt double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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; CHECK: clampTo3k_h:
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; CHECK: minsd
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define double @clampTo3k_h(double %x) nounwind readnone {
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entry:
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%0 = fcmp uge double %x, 3.000000e+03 ; <i1> [#uses=1]
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%x_addr.0 = select i1 %0, double 3.000000e+03, double %x ; <double> [#uses=1]
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ret double %x_addr.0
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}
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