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use update_llc_test_checks.py to tighten checking
test features, not CPUs remove unnecessary cruft llvm-svn: 234622
This commit is contained in:
Sanjay Patel
parent
88d9186eda
commit
6fe3c1e8ff
@ -1,132 +1,141 @@
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=core2 | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=btver2 | FileCheck %s --check-prefix=BTVER2
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=sse2 | FileCheck %s
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx,use-sqrt-est | FileCheck %s --check-prefix=ESTIMATE
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; generated using "clang -S -O2 -ffast-math -emit-llvm sqrt.c" from
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; #include <math.h>
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;
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; double fd(double d){
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; return sqrt(d);
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; }
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;
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; float ff(float f){
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; return sqrtf(f);
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; }
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;
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; long double fld(long double ld){
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; return sqrtl(ld);
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; }
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;
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; Tests conversion of sqrt function calls into sqrt instructions when
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; -ffast-math is in effect.
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declare double @__sqrt_finite(double) #0
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declare float @__sqrtf_finite(float) #0
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declare x86_fp80 @__sqrtl_finite(x86_fp80) #0
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declare float @llvm.sqrt.f32(float) #0
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declare <4 x float> @llvm.sqrt.v4f32(<4 x float>) #0
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declare <8 x float> @llvm.sqrt.v8f32(<8 x float>) #0
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; ModuleID = 'sqrt.c'
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Function Attrs: nounwind readnone uwtable
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define double @fd(double %d) #0 {
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entry:
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; CHECK: sqrtsd
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%call = tail call double @__sqrt_finite(double %d) #2
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; CHECK-LABEL: fd:
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; CHECK: # BB#0:
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; CHECK-NEXT: sqrtsd %xmm0, %xmm0
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; CHECK-NEXT: retq
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;
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; ESTIMATE-LABEL: fd:
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; ESTIMATE: # BB#0:
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; ESTIMATE-NEXT: vsqrtsd %xmm0, %xmm0, %xmm0
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; ESTIMATE-NEXT: retq
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%call = tail call double @__sqrt_finite(double %d) #1
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ret double %call
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}
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; Function Attrs: nounwind readnone
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declare double @__sqrt_finite(double) #1
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; Function Attrs: nounwind readnone uwtable
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define float @ff(float %f) #0 {
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entry:
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; CHECK: sqrtss
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%call = tail call float @__sqrtf_finite(float %f) #2
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; CHECK-LABEL: ff:
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; CHECK: # BB#0:
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; CHECK-NEXT: sqrtss %xmm0, %xmm0
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; CHECK-NEXT: retq
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;
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; ESTIMATE-LABEL: ff:
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; ESTIMATE: # BB#0:
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; ESTIMATE-NEXT: vrsqrtss %xmm0, %xmm0, %xmm1
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; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm1, %xmm2
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; ESTIMATE-NEXT: vmulss %xmm1, %xmm1, %xmm1
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; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm1
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; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm1, %xmm1
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; ESTIMATE-NEXT: vmulss %xmm2, %xmm1, %xmm1
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; ESTIMATE-NEXT: vmulss %xmm1, %xmm0, %xmm1
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; ESTIMATE-NEXT: vxorps %xmm2, %xmm2, %xmm2
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; ESTIMATE-NEXT: vcmpeqss %xmm2, %xmm0, %xmm0
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; ESTIMATE-NEXT: vandnps %xmm1, %xmm0, %xmm0
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; ESTIMATE-NEXT: retq
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%call = tail call float @__sqrtf_finite(float %f) #1
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ret float %call
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}
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; Function Attrs: nounwind readnone
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declare float @__sqrtf_finite(float) #1
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; Function Attrs: nounwind readnone uwtable
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define x86_fp80 @fld(x86_fp80 %ld) #0 {
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entry:
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; CHECK: fsqrt
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%call = tail call x86_fp80 @__sqrtl_finite(x86_fp80 %ld) #2
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; CHECK-LABEL: fld:
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; CHECK: # BB#0:
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; CHECK-NEXT: fldt {{[0-9]+}}(%rsp)
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; CHECK-NEXT: fsqrt
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; CHECK-NEXT: retq
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;
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; ESTIMATE-LABEL: fld:
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; ESTIMATE: # BB#0:
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; ESTIMATE-NEXT: fldt {{[0-9]+}}(%rsp)
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; ESTIMATE-NEXT: fsqrt
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; ESTIMATE-NEXT: retq
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%call = tail call x86_fp80 @__sqrtl_finite(x86_fp80 %ld) #1
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ret x86_fp80 %call
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}
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declare x86_fp80 @__sqrtl_finite(x86_fp80) #1
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declare float @llvm.sqrt.f32(float) #1
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declare <4 x float> @llvm.sqrt.v4f32(<4 x float>) #1
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declare <8 x float> @llvm.sqrt.v8f32(<8 x float>) #1
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; If the target's sqrtss and divss instructions are substantially
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; slower than rsqrtss with a Newton-Raphson refinement, we should
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; generate the estimate sequence.
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define float @reciprocal_square_root(float %x) #0 {
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; CHECK-LABEL: reciprocal_square_root:
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; CHECK: # BB#0:
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; CHECK-NEXT: sqrtss %xmm0, %xmm1
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; CHECK-NEXT: movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
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; CHECK-NEXT: divss %xmm1, %xmm0
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; CHECK-NEXT: retq
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;
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; ESTIMATE-LABEL: reciprocal_square_root:
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; ESTIMATE: # BB#0:
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; ESTIMATE-NEXT: vrsqrtss %xmm0, %xmm0, %xmm1
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; ESTIMATE-NEXT: vmulss {{.*}}(%rip), %xmm1, %xmm2
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; ESTIMATE-NEXT: vmulss %xmm1, %xmm1, %xmm1
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; ESTIMATE-NEXT: vmulss %xmm0, %xmm1, %xmm0
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; ESTIMATE-NEXT: vaddss {{.*}}(%rip), %xmm0, %xmm0
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; ESTIMATE-NEXT: vmulss %xmm2, %xmm0, %xmm0
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; ESTIMATE-NEXT: retq
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%sqrt = tail call float @llvm.sqrt.f32(float %x)
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%div = fdiv fast float 1.0, %sqrt
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ret float %div
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; CHECK-LABEL: reciprocal_square_root:
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; CHECK: sqrtss
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; CHECK-NEXT: movss
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; CHECK-NEXT: divss
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; CHECK-NEXT: retq
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; BTVER2-LABEL: reciprocal_square_root:
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; BTVER2: vrsqrtss
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; BTVER2-NEXT: vmulss
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; BTVER2-NEXT: vmulss
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; BTVER2-NEXT: vmulss
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; BTVER2-NEXT: vaddss
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; BTVER2-NEXT: vmulss
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; BTVER2-NEXT: retq
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}
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define <4 x float> @reciprocal_square_root_v4f32(<4 x float> %x) #0 {
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; CHECK-LABEL: reciprocal_square_root_v4f32:
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; CHECK: # BB#0:
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; CHECK-NEXT: sqrtps %xmm0, %xmm1
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; CHECK-NEXT: movaps {{.*#+}} xmm0 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; CHECK-NEXT: divps %xmm1, %xmm0
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; CHECK-NEXT: retq
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;
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; ESTIMATE-LABEL: reciprocal_square_root_v4f32:
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; ESTIMATE: # BB#0:
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; ESTIMATE-NEXT: vrsqrtps %xmm0, %xmm1
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; ESTIMATE-NEXT: vmulps %xmm1, %xmm1, %xmm2
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; ESTIMATE-NEXT: vmulps %xmm0, %xmm2, %xmm0
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; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %xmm0, %xmm0
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; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %xmm1, %xmm1
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; ESTIMATE-NEXT: vmulps %xmm1, %xmm0, %xmm0
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; ESTIMATE-NEXT: retq
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%sqrt = tail call <4 x float> @llvm.sqrt.v4f32(<4 x float> %x)
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%div = fdiv fast <4 x float> <float 1.0, float 1.0, float 1.0, float 1.0>, %sqrt
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ret <4 x float> %div
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; CHECK-LABEL: reciprocal_square_root_v4f32:
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; CHECK: sqrtps
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; CHECK-NEXT: movaps
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; CHECK-NEXT: divps
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; CHECK-NEXT: retq
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; BTVER2-LABEL: reciprocal_square_root_v4f32:
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; BTVER2: vrsqrtps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: vaddps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: retq
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}
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define <8 x float> @reciprocal_square_root_v8f32(<8 x float> %x) #0 {
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; CHECK-LABEL: reciprocal_square_root_v8f32:
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; CHECK: # BB#0:
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; CHECK-NEXT: sqrtps %xmm1, %xmm2
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; CHECK-NEXT: sqrtps %xmm0, %xmm3
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; CHECK-NEXT: movaps {{.*#+}} xmm1 = [1.000000e+00,1.000000e+00,1.000000e+00,1.000000e+00]
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; CHECK-NEXT: movaps %xmm1, %xmm0
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; CHECK-NEXT: divps %xmm3, %xmm0
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; CHECK-NEXT: divps %xmm2, %xmm1
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; CHECK-NEXT: retq
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;
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; ESTIMATE-LABEL: reciprocal_square_root_v8f32:
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; ESTIMATE: # BB#0:
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; ESTIMATE-NEXT: vrsqrtps %ymm0, %ymm1
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; ESTIMATE-NEXT: vmulps %ymm1, %ymm1, %ymm2
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; ESTIMATE-NEXT: vmulps %ymm0, %ymm2, %ymm0
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; ESTIMATE-NEXT: vaddps {{.*}}(%rip), %ymm0, %ymm0
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; ESTIMATE-NEXT: vmulps {{.*}}(%rip), %ymm1, %ymm1
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; ESTIMATE-NEXT: vmulps %ymm1, %ymm0, %ymm0
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; ESTIMATE-NEXT: retq
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%sqrt = tail call <8 x float> @llvm.sqrt.v8f32(<8 x float> %x)
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%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
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ret <8 x float> %div
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; CHECK-LABEL: reciprocal_square_root_v8f32:
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; CHECK: sqrtps
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; CHECK-NEXT: sqrtps
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; CHECK-NEXT: movaps
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; CHECK-NEXT: movaps
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; CHECK-NEXT: divps
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; CHECK-NEXT: divps
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; CHECK-NEXT: retq
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; BTVER2-LABEL: reciprocal_square_root_v8f32:
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; BTVER2: vrsqrtps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: vaddps
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; BTVER2-NEXT: vmulps
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; BTVER2-NEXT: retq
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}
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attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="true" "no-nans-fp-math"="true" "unsafe-fp-math"="true" "use-soft-float"="false" }
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attributes #2 = { nounwind readnone }
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attributes #0 = { "unsafe-fp-math"="true" }
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attributes #1 = { nounwind readnone }
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