mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
10ae865847
The old target DAG combine that allowed for performing int_to_fp(fp_to_int(x)) without a load/store pair is updated here with support for unsigned integers, and to support single-precision values without a third rounding step, on newer cores with the appropriate instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225248 91177308-0d34-0410-b5e6-96231b3b80d8
71 lines
1.5 KiB
LLVM
71 lines
1.5 KiB
LLVM
; RUN: llc -mcpu=a2 < %s | FileCheck %s -check-prefix=FPCVT
|
|
; RUN: llc -mcpu=ppc64 < %s | FileCheck %s -check-prefix=PPC64
|
|
target datalayout = "E-m:e-i64:64-n32:64"
|
|
target triple = "powerpc64-unknown-linux-gnu"
|
|
|
|
; Function Attrs: nounwind readnone
|
|
define float @fool(float %X) #0 {
|
|
entry:
|
|
%conv = fptosi float %X to i64
|
|
%conv1 = sitofp i64 %conv to float
|
|
ret float %conv1
|
|
|
|
; FPCVT-LABEL: @fool
|
|
; FPCVT: fctidz [[REG1:[0-9]+]], 1
|
|
; FPCVT: fcfids 1, [[REG1]]
|
|
; FPCVT: blr
|
|
|
|
; PPC64-LABEL: @fool
|
|
; PPC64: fctidz [[REG1:[0-9]+]], 1
|
|
; PPC64: fcfid [[REG2:[0-9]+]], [[REG1]]
|
|
; PPC64: frsp 1, [[REG2]]
|
|
; PPC64: blr
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
define double @foodl(double %X) #0 {
|
|
entry:
|
|
%conv = fptosi double %X to i64
|
|
%conv1 = sitofp i64 %conv to double
|
|
ret double %conv1
|
|
|
|
; FPCVT-LABEL: @foodl
|
|
; FPCVT: fctidz [[REG1:[0-9]+]], 1
|
|
; FPCVT: fcfid 1, [[REG1]]
|
|
; FPCVT: blr
|
|
|
|
; PPC64-LABEL: @foodl
|
|
; PPC64: fctidz [[REG1:[0-9]+]], 1
|
|
; PPC64: fcfid 1, [[REG1]]
|
|
; PPC64: blr
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
define float @fooul(float %X) #0 {
|
|
entry:
|
|
%conv = fptoui float %X to i64
|
|
%conv1 = uitofp i64 %conv to float
|
|
ret float %conv1
|
|
|
|
; FPCVT-LABEL: @fooul
|
|
; FPCVT: fctiduz [[REG1:[0-9]+]], 1
|
|
; FPCVT: fcfidus 1, [[REG1]]
|
|
; FPCVT: blr
|
|
}
|
|
|
|
; Function Attrs: nounwind readnone
|
|
define double @fooudl(double %X) #0 {
|
|
entry:
|
|
%conv = fptoui double %X to i64
|
|
%conv1 = uitofp i64 %conv to double
|
|
ret double %conv1
|
|
|
|
; FPCVT-LABEL: @fooudl
|
|
; FPCVT: fctiduz [[REG1:[0-9]+]], 1
|
|
; FPCVT: fcfidu 1, [[REG1]]
|
|
; FPCVT: blr
|
|
}
|
|
|
|
attributes #0 = { nounwind readnone }
|
|
|