mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 22:32:47 +00:00
a27bf373d9
These are precise enough to use for OpenCL unless denormals are handled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213107 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
1.2 KiB
LLVM
29 lines
1.2 KiB
LLVM
; RUN: llc -march=r600 -mcpu=SI -mattr=-fp32-denormals -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=SI-UNSAFE -check-prefix=SI %s
|
|
; RUN: llc -march=r600 -mcpu=SI -mattr=-fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI %s
|
|
|
|
declare float @llvm.sqrt.f32(float) nounwind readnone
|
|
declare double @llvm.sqrt.f64(double) nounwind readnone
|
|
|
|
; SI-LABEL: @rsq_f32
|
|
; SI: V_RSQ_F32_e32
|
|
; SI: S_ENDPGM
|
|
define void @rsq_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind {
|
|
%val = load float addrspace(1)* %in, align 4
|
|
%sqrt = call float @llvm.sqrt.f32(float %val) nounwind readnone
|
|
%div = fdiv float 1.0, %sqrt
|
|
store float %div, float addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|
|
|
|
; SI-LABEL: @rsq_f64
|
|
; SI-UNSAFE: V_RSQ_F64_e32
|
|
; SI-SAFE: V_SQRT_F64_e32
|
|
; SI: S_ENDPGM
|
|
define void @rsq_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) nounwind {
|
|
%val = load double addrspace(1)* %in, align 4
|
|
%sqrt = call double @llvm.sqrt.f64(double %val) nounwind readnone
|
|
%div = fdiv double 1.0, %sqrt
|
|
store double %div, double addrspace(1)* %out, align 4
|
|
ret void
|
|
}
|