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clang-p2996/llvm/test/CodeGen/AArch64/sqrt-fastmath.ll
Harvin Iriawan db158c7c83 [AArch64] Update generic sched model to A510 
Refresh of the generic scheduling model to use A510 instead of A55.
  Main benefits are to the little core, and introducing SVE scheduling information.
  Changes tested on various OoO cores, no performance degradation is seen.

  Differential Revision: https://reviews.llvm.org/D156799
2023-08-21 12:25:15 +01:00

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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=aarch64-unknown-linux-gnu -mattr=+neon,-use-reciprocal-square-root | FileCheck %s --check-prefix=FAULT
; RUN: llc < %s -mtriple=aarch64-unknown-linux-gnu -mattr=+neon,+use-reciprocal-square-root | FileCheck %s
declare float @llvm.sqrt.f32(float) #0
declare <2 x float> @llvm.sqrt.v2f32(<2 x float>) #0
declare <4 x float> @llvm.sqrt.v4f32(<4 x float>) #0
declare <8 x float> @llvm.sqrt.v8f32(<8 x float>) #0
declare double @llvm.sqrt.f64(double) #0
declare <2 x double> @llvm.sqrt.v2f64(<2 x double>) #0
declare <4 x double> @llvm.sqrt.v4f64(<4 x double>) #0
define float @fsqrt(float %a) #0 {
; FAULT-LABEL: fsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt s0, s0
; FAULT-NEXT: ret
;
; CHECK-LABEL: fsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte s1, s0
; CHECK-NEXT: fcmp s0, #0.0
; CHECK-NEXT: fmul s2, s1, s1
; CHECK-NEXT: frsqrts s2, s0, s2
; CHECK-NEXT: fmul s1, s1, s2
; CHECK-NEXT: fmul s2, s1, s1
; CHECK-NEXT: fmul s1, s0, s1
; CHECK-NEXT: frsqrts s2, s0, s2
; CHECK-NEXT: fmul s1, s1, s2
; CHECK-NEXT: fcsel s0, s0, s1, eq
; CHECK-NEXT: ret
%1 = tail call fast float @llvm.sqrt.f32(float %a)
ret float %1
}
define float @fsqrt_ieee_denorms(float %a) #1 {
; FAULT-LABEL: fsqrt_ieee_denorms:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt s0, s0
; FAULT-NEXT: ret
;
; CHECK-LABEL: fsqrt_ieee_denorms:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte s1, s0
; CHECK-NEXT: fcmp s0, #0.0
; CHECK-NEXT: fmul s2, s1, s1
; CHECK-NEXT: frsqrts s2, s0, s2
; CHECK-NEXT: fmul s1, s1, s2
; CHECK-NEXT: fmul s2, s1, s1
; CHECK-NEXT: fmul s1, s0, s1
; CHECK-NEXT: frsqrts s2, s0, s2
; CHECK-NEXT: fmul s1, s1, s2
; CHECK-NEXT: fcsel s0, s0, s1, eq
; CHECK-NEXT: ret
%1 = tail call fast float @llvm.sqrt.f32(float %a)
ret float %1
}
define <2 x float> @f2sqrt(<2 x float> %a) #0 {
; FAULT-LABEL: f2sqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.2s, v0.2s
; FAULT-NEXT: ret
;
; CHECK-LABEL: f2sqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v1.2s, v0.2s
; CHECK-NEXT: fmul v2.2s, v1.2s, v1.2s
; CHECK-NEXT: frsqrts v2.2s, v0.2s, v2.2s
; CHECK-NEXT: fmul v1.2s, v1.2s, v2.2s
; CHECK-NEXT: fmul v2.2s, v1.2s, v1.2s
; CHECK-NEXT: fmul v1.2s, v0.2s, v1.2s
; CHECK-NEXT: frsqrts v2.2s, v0.2s, v2.2s
; CHECK-NEXT: fmul v1.2s, v1.2s, v2.2s
; CHECK-NEXT: fcmeq v2.2s, v0.2s, #0.0
; CHECK-NEXT: bif v0.8b, v1.8b, v2.8b
; CHECK-NEXT: ret
%1 = tail call fast <2 x float> @llvm.sqrt.v2f32(<2 x float> %a)
ret <2 x float> %1
}
define <4 x float> @f4sqrt(<4 x float> %a) #0 {
; FAULT-LABEL: f4sqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.4s, v0.4s
; FAULT-NEXT: ret
;
; CHECK-LABEL: f4sqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v1.4s, v0.4s
; CHECK-NEXT: fmul v2.4s, v1.4s, v1.4s
; CHECK-NEXT: frsqrts v2.4s, v0.4s, v2.4s
; CHECK-NEXT: fmul v1.4s, v1.4s, v2.4s
; CHECK-NEXT: fmul v2.4s, v1.4s, v1.4s
; CHECK-NEXT: fmul v1.4s, v0.4s, v1.4s
; CHECK-NEXT: frsqrts v2.4s, v0.4s, v2.4s
; CHECK-NEXT: fmul v1.4s, v1.4s, v2.4s
; CHECK-NEXT: fcmeq v2.4s, v0.4s, #0.0
; CHECK-NEXT: bif v0.16b, v1.16b, v2.16b
; CHECK-NEXT: ret
%1 = tail call fast <4 x float> @llvm.sqrt.v4f32(<4 x float> %a)
ret <4 x float> %1
}
define <8 x float> @f8sqrt(<8 x float> %a) #0 {
; FAULT-LABEL: f8sqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.4s, v0.4s
; FAULT-NEXT: fsqrt v1.4s, v1.4s
; FAULT-NEXT: ret
;
; CHECK-LABEL: f8sqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v2.4s, v0.4s
; CHECK-NEXT: frsqrte v3.4s, v1.4s
; CHECK-NEXT: fmul v4.4s, v2.4s, v2.4s
; CHECK-NEXT: frsqrts v4.4s, v0.4s, v4.4s
; CHECK-NEXT: fmul v5.4s, v3.4s, v3.4s
; CHECK-NEXT: frsqrts v5.4s, v1.4s, v5.4s
; CHECK-NEXT: fmul v2.4s, v2.4s, v4.4s
; CHECK-NEXT: fmul v4.4s, v2.4s, v2.4s
; CHECK-NEXT: fmul v2.4s, v0.4s, v2.4s
; CHECK-NEXT: frsqrts v4.4s, v0.4s, v4.4s
; CHECK-NEXT: fmul v3.4s, v3.4s, v5.4s
; CHECK-NEXT: fmul v5.4s, v3.4s, v3.4s
; CHECK-NEXT: fmul v3.4s, v1.4s, v3.4s
; CHECK-NEXT: frsqrts v5.4s, v1.4s, v5.4s
; CHECK-NEXT: fmul v2.4s, v2.4s, v4.4s
; CHECK-NEXT: fcmeq v4.4s, v0.4s, #0.0
; CHECK-NEXT: bif v0.16b, v2.16b, v4.16b
; CHECK-NEXT: fmul v3.4s, v3.4s, v5.4s
; CHECK-NEXT: fcmeq v5.4s, v1.4s, #0.0
; CHECK-NEXT: bif v1.16b, v3.16b, v5.16b
; CHECK-NEXT: ret
%1 = tail call fast <8 x float> @llvm.sqrt.v8f32(<8 x float> %a)
ret <8 x float> %1
}
define double @dsqrt(double %a) #0 {
; FAULT-LABEL: dsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: ret
;
; CHECK-LABEL: dsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: fcmp d0, #0.0
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: fmul d1, d0, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fcsel d0, d0, d1, eq
; CHECK-NEXT: ret
%1 = tail call fast double @llvm.sqrt.f64(double %a)
ret double %1
}
define double @dsqrt_ieee_denorms(double %a) #1 {
; FAULT-LABEL: dsqrt_ieee_denorms:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: ret
;
; CHECK-LABEL: dsqrt_ieee_denorms:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: fcmp d0, #0.0
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: fmul d1, d0, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fcsel d0, d0, d1, eq
; CHECK-NEXT: ret
%1 = tail call fast double @llvm.sqrt.f64(double %a)
ret double %1
}
define <2 x double> @d2sqrt(<2 x double> %a) #0 {
; FAULT-LABEL: d2sqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.2d, v0.2d
; FAULT-NEXT: ret
;
; CHECK-LABEL: d2sqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v1.2d, v0.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: fmul v1.2d, v0.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fcmeq v2.2d, v0.2d, #0.0
; CHECK-NEXT: bif v0.16b, v1.16b, v2.16b
; CHECK-NEXT: ret
%1 = tail call fast <2 x double> @llvm.sqrt.v2f64(<2 x double> %a)
ret <2 x double> %1
}
define <4 x double> @d4sqrt(<4 x double> %a) #0 {
; FAULT-LABEL: d4sqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.2d, v0.2d
; FAULT-NEXT: fsqrt v1.2d, v1.2d
; FAULT-NEXT: ret
;
; CHECK-LABEL: d4sqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v2.2d, v0.2d
; CHECK-NEXT: frsqrte v3.2d, v1.2d
; CHECK-NEXT: fmul v4.2d, v2.2d, v2.2d
; CHECK-NEXT: frsqrts v4.2d, v0.2d, v4.2d
; CHECK-NEXT: fmul v5.2d, v3.2d, v3.2d
; CHECK-NEXT: frsqrts v5.2d, v1.2d, v5.2d
; CHECK-NEXT: fmul v2.2d, v2.2d, v4.2d
; CHECK-NEXT: fmul v4.2d, v2.2d, v2.2d
; CHECK-NEXT: frsqrts v4.2d, v0.2d, v4.2d
; CHECK-NEXT: fmul v3.2d, v3.2d, v5.2d
; CHECK-NEXT: fmul v5.2d, v3.2d, v3.2d
; CHECK-NEXT: frsqrts v5.2d, v1.2d, v5.2d
; CHECK-NEXT: fmul v2.2d, v2.2d, v4.2d
; CHECK-NEXT: fmul v4.2d, v2.2d, v2.2d
; CHECK-NEXT: fmul v2.2d, v0.2d, v2.2d
; CHECK-NEXT: frsqrts v4.2d, v0.2d, v4.2d
; CHECK-NEXT: fmul v3.2d, v3.2d, v5.2d
; CHECK-NEXT: fmul v5.2d, v3.2d, v3.2d
; CHECK-NEXT: fmul v3.2d, v1.2d, v3.2d
; CHECK-NEXT: frsqrts v5.2d, v1.2d, v5.2d
; CHECK-NEXT: fmul v2.2d, v2.2d, v4.2d
; CHECK-NEXT: fcmeq v4.2d, v0.2d, #0.0
; CHECK-NEXT: bif v0.16b, v2.16b, v4.16b
; CHECK-NEXT: fmul v3.2d, v3.2d, v5.2d
; CHECK-NEXT: fcmeq v5.2d, v1.2d, #0.0
; CHECK-NEXT: bif v1.16b, v3.16b, v5.16b
; CHECK-NEXT: ret
%1 = tail call fast <4 x double> @llvm.sqrt.v4f64(<4 x double> %a)
ret <4 x double> %1
}
define float @frsqrt(float %a) #0 {
; FAULT-LABEL: frsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt s0, s0
; FAULT-NEXT: fmov s1, #1.00000000
; FAULT-NEXT: fdiv s0, s1, s0
; FAULT-NEXT: ret
;
; CHECK-LABEL: frsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte s1, s0
; CHECK-NEXT: fmul s2, s1, s1
; CHECK-NEXT: frsqrts s2, s0, s2
; CHECK-NEXT: fmul s1, s1, s2
; CHECK-NEXT: fmul s2, s1, s1
; CHECK-NEXT: frsqrts s0, s0, s2
; CHECK-NEXT: fmul s0, s1, s0
; CHECK-NEXT: ret
%1 = tail call fast float @llvm.sqrt.f32(float %a)
%2 = fdiv fast float 1.000000e+00, %1
ret float %2
}
define <2 x float> @f2rsqrt(<2 x float> %a) #0 {
; FAULT-LABEL: f2rsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.2s, v0.2s
; FAULT-NEXT: fmov v1.2s, #1.00000000
; FAULT-NEXT: fdiv v0.2s, v1.2s, v0.2s
; FAULT-NEXT: ret
;
; CHECK-LABEL: f2rsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v1.2s, v0.2s
; CHECK-NEXT: fmul v2.2s, v1.2s, v1.2s
; CHECK-NEXT: frsqrts v2.2s, v0.2s, v2.2s
; CHECK-NEXT: fmul v1.2s, v1.2s, v2.2s
; CHECK-NEXT: fmul v2.2s, v1.2s, v1.2s
; CHECK-NEXT: frsqrts v0.2s, v0.2s, v2.2s
; CHECK-NEXT: fmul v0.2s, v1.2s, v0.2s
; CHECK-NEXT: ret
%1 = tail call fast <2 x float> @llvm.sqrt.v2f32(<2 x float> %a)
%2 = fdiv fast <2 x float> <float 1.000000e+00, float 1.000000e+00>, %1
ret <2 x float> %2
}
define <4 x float> @f4rsqrt(<4 x float> %a) #0 {
; FAULT-LABEL: f4rsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.4s, v0.4s
; FAULT-NEXT: fmov v1.4s, #1.00000000
; FAULT-NEXT: fdiv v0.4s, v1.4s, v0.4s
; FAULT-NEXT: ret
;
; CHECK-LABEL: f4rsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v1.4s, v0.4s
; CHECK-NEXT: fmul v2.4s, v1.4s, v1.4s
; CHECK-NEXT: frsqrts v2.4s, v0.4s, v2.4s
; CHECK-NEXT: fmul v1.4s, v1.4s, v2.4s
; CHECK-NEXT: fmul v2.4s, v1.4s, v1.4s
; CHECK-NEXT: frsqrts v0.4s, v0.4s, v2.4s
; CHECK-NEXT: fmul v0.4s, v1.4s, v0.4s
; CHECK-NEXT: ret
%1 = tail call fast <4 x float> @llvm.sqrt.v4f32(<4 x float> %a)
%2 = fdiv fast <4 x float> <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>, %1
ret <4 x float> %2
}
define <8 x float> @f8rsqrt(<8 x float> %a) #0 {
; FAULT-LABEL: f8rsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.4s, v0.4s
; FAULT-NEXT: fmov v2.4s, #1.00000000
; FAULT-NEXT: fsqrt v1.4s, v1.4s
; FAULT-NEXT: fdiv v0.4s, v2.4s, v0.4s
; FAULT-NEXT: fdiv v1.4s, v2.4s, v1.4s
; FAULT-NEXT: ret
;
; CHECK-LABEL: f8rsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v2.4s, v0.4s
; CHECK-NEXT: frsqrte v3.4s, v1.4s
; CHECK-NEXT: fmul v4.4s, v2.4s, v2.4s
; CHECK-NEXT: frsqrts v4.4s, v0.4s, v4.4s
; CHECK-NEXT: fmul v5.4s, v3.4s, v3.4s
; CHECK-NEXT: frsqrts v5.4s, v1.4s, v5.4s
; CHECK-NEXT: fmul v2.4s, v2.4s, v4.4s
; CHECK-NEXT: fmul v4.4s, v2.4s, v2.4s
; CHECK-NEXT: frsqrts v0.4s, v0.4s, v4.4s
; CHECK-NEXT: fmul v3.4s, v3.4s, v5.4s
; CHECK-NEXT: fmul v4.4s, v3.4s, v3.4s
; CHECK-NEXT: frsqrts v1.4s, v1.4s, v4.4s
; CHECK-NEXT: fmul v0.4s, v2.4s, v0.4s
; CHECK-NEXT: fmul v1.4s, v3.4s, v1.4s
; CHECK-NEXT: ret
%1 = tail call fast <8 x float> @llvm.sqrt.v8f32(<8 x float> %a)
%2 = fdiv fast <8 x float> <float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00>, %1
ret <8 x float> %2
}
define double @drsqrt(double %a) #0 {
; FAULT-LABEL: drsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: fmov d1, #1.00000000
; FAULT-NEXT: fdiv d0, d1, d0
; FAULT-NEXT: ret
;
; CHECK-LABEL: drsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d0, d0, d2
; CHECK-NEXT: fmul d0, d1, d0
; CHECK-NEXT: ret
%1 = tail call fast double @llvm.sqrt.f64(double %a)
%2 = fdiv fast double 1.000000e+00, %1
ret double %2
}
define <2 x double> @d2rsqrt(<2 x double> %a) #0 {
; FAULT-LABEL: d2rsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.2d, v0.2d
; FAULT-NEXT: fmov v1.2d, #1.00000000
; FAULT-NEXT: fdiv v0.2d, v1.2d, v0.2d
; FAULT-NEXT: ret
;
; CHECK-LABEL: d2rsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v1.2d, v0.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v0.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v0.2d, v1.2d, v0.2d
; CHECK-NEXT: ret
%1 = tail call fast <2 x double> @llvm.sqrt.v2f64(<2 x double> %a)
%2 = fdiv fast <2 x double> <double 1.000000e+00, double 1.000000e+00>, %1
ret <2 x double> %2
}
define <4 x double> @d4rsqrt(<4 x double> %a) #0 {
; FAULT-LABEL: d4rsqrt:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.2d, v0.2d
; FAULT-NEXT: fmov v2.2d, #1.00000000
; FAULT-NEXT: fsqrt v1.2d, v1.2d
; FAULT-NEXT: fdiv v0.2d, v2.2d, v0.2d
; FAULT-NEXT: fdiv v1.2d, v2.2d, v1.2d
; FAULT-NEXT: ret
;
; CHECK-LABEL: d4rsqrt:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v2.2d, v0.2d
; CHECK-NEXT: frsqrte v3.2d, v1.2d
; CHECK-NEXT: fmul v4.2d, v2.2d, v2.2d
; CHECK-NEXT: frsqrts v4.2d, v0.2d, v4.2d
; CHECK-NEXT: fmul v5.2d, v3.2d, v3.2d
; CHECK-NEXT: frsqrts v5.2d, v1.2d, v5.2d
; CHECK-NEXT: fmul v2.2d, v2.2d, v4.2d
; CHECK-NEXT: fmul v4.2d, v2.2d, v2.2d
; CHECK-NEXT: frsqrts v4.2d, v0.2d, v4.2d
; CHECK-NEXT: fmul v3.2d, v3.2d, v5.2d
; CHECK-NEXT: fmul v5.2d, v3.2d, v3.2d
; CHECK-NEXT: frsqrts v5.2d, v1.2d, v5.2d
; CHECK-NEXT: fmul v2.2d, v2.2d, v4.2d
; CHECK-NEXT: fmul v4.2d, v2.2d, v2.2d
; CHECK-NEXT: frsqrts v0.2d, v0.2d, v4.2d
; CHECK-NEXT: fmul v3.2d, v3.2d, v5.2d
; CHECK-NEXT: fmul v4.2d, v3.2d, v3.2d
; CHECK-NEXT: frsqrts v1.2d, v1.2d, v4.2d
; CHECK-NEXT: fmul v0.2d, v2.2d, v0.2d
; CHECK-NEXT: fmul v1.2d, v3.2d, v1.2d
; CHECK-NEXT: ret
%1 = tail call fast <4 x double> @llvm.sqrt.v4f64(<4 x double> %a)
%2 = fdiv fast <4 x double> <double 1.000000e+00, double 1.000000e+00, double 1.000000e+00, double 1.000000e+00>, %1
ret <4 x double> %2
}
define double @sqrt_fdiv_common_operand(double %x) nounwind {
; FAULT-LABEL: sqrt_fdiv_common_operand:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: ret
;
; CHECK-LABEL: sqrt_fdiv_common_operand:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d0, d0, d1
; CHECK-NEXT: ret
%sqrt = call fast double @llvm.sqrt.f64(double %x)
%r = fdiv fast double %x, %sqrt
ret double %r
}
define <2 x double> @sqrt_fdiv_common_operand_vec(<2 x double> %x) nounwind {
; FAULT-LABEL: sqrt_fdiv_common_operand_vec:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt v0.2d, v0.2d
; FAULT-NEXT: ret
;
; CHECK-LABEL: sqrt_fdiv_common_operand_vec:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte v1.2d, v0.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fmul v2.2d, v1.2d, v1.2d
; CHECK-NEXT: frsqrts v2.2d, v0.2d, v2.2d
; CHECK-NEXT: fmul v1.2d, v1.2d, v2.2d
; CHECK-NEXT: fmul v0.2d, v0.2d, v1.2d
; CHECK-NEXT: ret
%sqrt = call <2 x double> @llvm.sqrt.v2f64(<2 x double> %x)
%r = fdiv arcp nsz reassoc <2 x double> %x, %sqrt
ret <2 x double> %r
}
define double @sqrt_fdiv_common_operand_extra_use(double %x, ptr %p) nounwind {
; FAULT-LABEL: sqrt_fdiv_common_operand_extra_use:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: str d0, [x0]
; FAULT-NEXT: ret
;
; CHECK-LABEL: sqrt_fdiv_common_operand_extra_use:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: fcmp d0, #0.0
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d1, d0, d1
; CHECK-NEXT: fcsel d2, d0, d1, eq
; CHECK-NEXT: fmov d0, d1
; CHECK-NEXT: str d2, [x0]
; CHECK-NEXT: ret
%sqrt = call fast double @llvm.sqrt.f64(double %x)
store double %sqrt, ptr %p
%r = fdiv fast double %x, %sqrt
ret double %r
}
define double @sqrt_simplify_before_recip_3_uses(double %x, ptr %p1, ptr %p2) nounwind {
; FAULT-LABEL: sqrt_simplify_before_recip_3_uses:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: mov x8, #4631107791820423168 // =0x4045000000000000
; FAULT-NEXT: fmov d1, #1.00000000
; FAULT-NEXT: fmov d2, x8
; FAULT-NEXT: fdiv d1, d1, d0
; FAULT-NEXT: fdiv d2, d2, d0
; FAULT-NEXT: str d1, [x0]
; FAULT-NEXT: str d2, [x1]
; FAULT-NEXT: ret
;
; CHECK-LABEL: sqrt_simplify_before_recip_3_uses:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: mov x8, #4631107791820423168 // =0x4045000000000000
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmov d2, x8
; CHECK-NEXT: fmul d0, d0, d1
; CHECK-NEXT: fmul d2, d1, d2
; CHECK-NEXT: str d1, [x0]
; CHECK-NEXT: str d2, [x1]
; CHECK-NEXT: ret
%sqrt = tail call fast double @llvm.sqrt.f64(double %x)
%rsqrt = fdiv fast double 1.0, %sqrt
%r = fdiv fast double 42.0, %sqrt
%sqrt_fast = fdiv fast double %x, %sqrt
store double %rsqrt, ptr %p1, align 8
store double %r, ptr %p2, align 8
ret double %sqrt_fast
}
define double @sqrt_simplify_before_recip_3_uses_order(double %x, ptr %p1, ptr %p2) nounwind {
; FAULT-LABEL: sqrt_simplify_before_recip_3_uses_order:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: mov x8, #4631107791820423168 // =0x4045000000000000
; FAULT-NEXT: fmov d1, x8
; FAULT-NEXT: mov x8, #140737488355328 // =0x800000000000
; FAULT-NEXT: movk x8, #16453, lsl #48
; FAULT-NEXT: fmov d2, x8
; FAULT-NEXT: fdiv d1, d1, d0
; FAULT-NEXT: fdiv d2, d2, d0
; FAULT-NEXT: str d1, [x0]
; FAULT-NEXT: str d2, [x1]
; FAULT-NEXT: ret
;
; CHECK-LABEL: sqrt_simplify_before_recip_3_uses_order:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: mov x8, #4631107791820423168 // =0x4045000000000000
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmov d2, x8
; CHECK-NEXT: mov x8, #140737488355328 // =0x800000000000
; CHECK-NEXT: movk x8, #16453, lsl #48
; CHECK-NEXT: fmov d3, x8
; CHECK-NEXT: fmul d0, d0, d1
; CHECK-NEXT: fmul d2, d1, d2
; CHECK-NEXT: fmul d1, d1, d3
; CHECK-NEXT: str d2, [x0]
; CHECK-NEXT: str d1, [x1]
; CHECK-NEXT: ret
%sqrt = tail call fast double @llvm.sqrt.f64(double %x)
%sqrt_fast = fdiv fast double %x, %sqrt
%r1 = fdiv fast double 42.0, %sqrt
%r2 = fdiv fast double 43.0, %sqrt
store double %r1, ptr %p1, align 8
store double %r2, ptr %p2, align 8
ret double %sqrt_fast
}
define double @sqrt_simplify_before_recip_4_uses(double %x, ptr %p1, ptr %p2, ptr %p3) nounwind {
; FAULT-LABEL: sqrt_simplify_before_recip_4_uses:
; FAULT: // %bb.0:
; FAULT-NEXT: fsqrt d0, d0
; FAULT-NEXT: fmov d1, #1.00000000
; FAULT-NEXT: mov x8, #4631107791820423168 // =0x4045000000000000
; FAULT-NEXT: fmov d2, x8
; FAULT-NEXT: mov x8, #140737488355328 // =0x800000000000
; FAULT-NEXT: movk x8, #16453, lsl #48
; FAULT-NEXT: fmov d3, x8
; FAULT-NEXT: fdiv d1, d1, d0
; FAULT-NEXT: fmul d2, d1, d2
; FAULT-NEXT: fmul d3, d1, d3
; FAULT-NEXT: str d1, [x0]
; FAULT-NEXT: str d2, [x1]
; FAULT-NEXT: str d3, [x2]
; FAULT-NEXT: ret
;
; CHECK-LABEL: sqrt_simplify_before_recip_4_uses:
; CHECK: // %bb.0:
; CHECK-NEXT: frsqrte d1, d0
; CHECK-NEXT: fcmp d0, #0.0
; CHECK-NEXT: mov x8, #4631107791820423168 // =0x4045000000000000
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d1, d1
; CHECK-NEXT: frsqrts d2, d0, d2
; CHECK-NEXT: fmul d1, d1, d2
; CHECK-NEXT: fmul d2, d0, d1
; CHECK-NEXT: str d1, [x0]
; CHECK-NEXT: fcsel d2, d0, d2, eq
; CHECK-NEXT: fdiv d0, d0, d2
; CHECK-NEXT: fmov d2, x8
; CHECK-NEXT: mov x8, #140737488355328 // =0x800000000000
; CHECK-NEXT: movk x8, #16453, lsl #48
; CHECK-NEXT: fmov d3, x8
; CHECK-NEXT: fmul d2, d1, d2
; CHECK-NEXT: fmul d3, d1, d3
; CHECK-NEXT: str d2, [x1]
; CHECK-NEXT: str d3, [x2]
; CHECK-NEXT: ret
%sqrt = tail call fast double @llvm.sqrt.f64(double %x)
%rsqrt = fdiv fast double 1.0, %sqrt
%r1 = fdiv fast double 42.0, %sqrt
%r2 = fdiv fast double 43.0, %sqrt
%sqrt_fast = fdiv fast double %x, %sqrt
store double %rsqrt, ptr %p1, align 8
store double %r1, ptr %p2, align 8
store double %r2, ptr %p3, align 8
ret double %sqrt_fast
}
attributes #0 = { "unsafe-fp-math"="true" }
attributes #1 = { "unsafe-fp-math"="true" "denormal-fp-math"="ieee" }
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