llvm/test/CodeGen/X86/sqrt-fastmath.ll
James Y Knight 423c686bec Make utils/update_llc_test_checks.py note that the assertions are
autogenerated.

Also update existing test cases which appear to be generated by it and
weren't modified (other than addition of the header) by rerunning it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253917 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-23 21:33:58 +00:00

143 lines
4.9 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=sse2 -recip=!sqrtf,!vec-sqrtf,!divf,!vec-divf | FileCheck %s --check-prefix=NORECIP
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx -recip=sqrtf,vec-sqrtf | FileCheck %s --check-prefix=ESTIMATE
declare double @__sqrt_finite(double) #0
declare float @__sqrtf_finite(float) #0
declare x86_fp80 @__sqrtl_finite(x86_fp80) #0
declare float @llvm.sqrt.f32(float) #0
declare <4 x float> @llvm.sqrt.v4f32(<4 x float>) #0
declare <8 x float> @llvm.sqrt.v8f32(<8 x float>) #0
define double @fd(double %d) #0 {
; NORECIP-LABEL: fd:
; NORECIP: # BB#0:
; NORECIP-NEXT: sqrtsd %xmm0, %xmm0
; NORECIP-NEXT: retq
;
; ESTIMATE-LABEL: fd:
; ESTIMATE: # BB#0:
; ESTIMATE-NEXT: vsqrtsd %xmm0, %xmm0, %xmm0
; ESTIMATE-NEXT: retq
%call = tail call double @__sqrt_finite(double %d) #1
ret double %call
}
define float @ff(float %f) #0 {
; NORECIP-LABEL: ff:
; NORECIP: # BB#0:
; NORECIP-NEXT: sqrtss %xmm0, %xmm0
; NORECIP-NEXT: retq
;
; ESTIMATE-LABEL: ff:
; ESTIMATE: # BB#0:
; ESTIMATE-NEXT: vrsqrtss %xmm0, %xmm0, %xmm1
; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm1, %xmm2
; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm3
; ESTIMATE-NEXT: vmulss %xmm3, %xmm1, %xmm1
; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm1, %xmm1
; ESTIMATE-NEXT: vmulss %xmm0, %xmm2, %xmm2
; ESTIMATE-NEXT: vmulss %xmm2, %xmm1, %xmm1
; ESTIMATE-NEXT: vxorps %xmm2, %xmm2, %xmm2
; ESTIMATE-NEXT: vcmpeqss %xmm2, %xmm0, %xmm0
; ESTIMATE-NEXT: vandnps %xmm1, %xmm0, %xmm0
; ESTIMATE-NEXT: retq
%call = tail call float @__sqrtf_finite(float %f) #1
ret float %call
}
define x86_fp80 @fld(x86_fp80 %ld) #0 {
; NORECIP-LABEL: fld:
; NORECIP: # BB#0:
; NORECIP-NEXT: fldt {{[0-9]+}}(%rsp)
; NORECIP-NEXT: fsqrt
; NORECIP-NEXT: retq
;
; ESTIMATE-LABEL: fld:
; ESTIMATE: # BB#0:
; ESTIMATE-NEXT: fldt {{[0-9]+}}(%rsp)
; ESTIMATE-NEXT: fsqrt
; ESTIMATE-NEXT: retq
%call = tail call x86_fp80 @__sqrtl_finite(x86_fp80 %ld) #1
ret x86_fp80 %call
}
define float @reciprocal_square_root(float %x) #0 {
; NORECIP-LABEL: reciprocal_square_root:
; NORECIP: # BB#0:
; NORECIP-NEXT: sqrtss %xmm0, %xmm1
; NORECIP-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; NORECIP-NEXT: divss %xmm1, %xmm0
; NORECIP-NEXT: retq
;
; ESTIMATE-LABEL: reciprocal_square_root:
; ESTIMATE: # BB#0:
; ESTIMATE-NEXT: vrsqrtss %xmm0, %xmm0, %xmm1
; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm1, %xmm2
; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm0
; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm0
; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm0, %xmm0
; ESTIMATE-NEXT: vmulss %xmm2, %xmm0, %xmm0
; ESTIMATE-NEXT: retq
%sqrt = tail call float @llvm.sqrt.f32(float %x)
%div = fdiv fast float 1.0, %sqrt
ret float %div
}
define <4 x float> @reciprocal_square_root_v4f32(<4 x float> %x) #0 {
; NORECIP-LABEL: reciprocal_square_root_v4f32:
; NORECIP: # BB#0:
; NORECIP-NEXT: sqrtps %xmm0, %xmm1
; NORECIP-NEXT: movaps {{.*#+}} xmm0 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
; NORECIP-NEXT: divps %xmm1, %xmm0
; NORECIP-NEXT: retq
;
; ESTIMATE-LABEL: reciprocal_square_root_v4f32:
; ESTIMATE: # BB#0:
; ESTIMATE-NEXT: vrsqrtps %xmm0, %xmm1
; ESTIMATE-NEXT: vmulps %xmm0, %xmm1, %xmm0
; ESTIMATE-NEXT: vmulps %xmm0, %xmm1, %xmm0
; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %xmm0, %xmm0
; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %xmm1, %xmm1
; ESTIMATE-NEXT: vmulps %xmm1, %xmm0, %xmm0
; ESTIMATE-NEXT: retq
%sqrt = tail call <4 x float> @llvm.sqrt.v4f32(<4 x float> %x)
%div = fdiv fast <4 x float> <float 1.0, float 1.0, float 1.0, float 1.0>, %sqrt
ret <4 x float> %div
}
define <8 x float> @reciprocal_square_root_v8f32(<8 x float> %x) #0 {
; NORECIP-LABEL: reciprocal_square_root_v8f32:
; NORECIP: # BB#0:
; NORECIP-NEXT: sqrtps %xmm1, %xmm2
; NORECIP-NEXT: sqrtps %xmm0, %xmm3
; NORECIP-NEXT: movaps {{.*#+}} xmm1 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
; NORECIP-NEXT: movaps %xmm1, %xmm0
; NORECIP-NEXT: divps %xmm3, %xmm0
; NORECIP-NEXT: divps %xmm2, %xmm1
; NORECIP-NEXT: retq
;
; ESTIMATE-LABEL: reciprocal_square_root_v8f32:
; ESTIMATE: # BB#0:
; ESTIMATE-NEXT: vrsqrtps %ymm0, %ymm1
; ESTIMATE-NEXT: vmulps %ymm0, %ymm1, %ymm0
; ESTIMATE-NEXT: vmulps %ymm0, %ymm1, %ymm0
; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %ymm0, %ymm0
; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %ymm1, %ymm1
; ESTIMATE-NEXT: vmulps %ymm1, %ymm0, %ymm0
; ESTIMATE-NEXT: retq
%sqrt = tail call <8 x float> @llvm.sqrt.v8f32(<8 x float> %x)
%div = fdiv fast <8 x float> <float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0, float 1.0>, %sqrt
ret <8 x float> %div
}
attributes #0 = { "unsafe-fp-math"="true" }
attributes #1 = { nounwind readnone }