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TheRock/compiler/amd-llvm/llvm/test/CodeGen/AMDGPU/GlobalISel/combine-fdiv-sqrt-to-rsq.mir
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4
# RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -run-pass=amdgpu-postlegalizer-combiner -verify-machineinstrs %s -o - | FileCheck -check-prefix=GCN %s
---
name: rsq_f16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f16
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: [[INT:%[0-9]+]]:_(s16) = contract G_INTRINSIC intrinsic(@llvm.amdgcn.rsq), %x(s16)
; GCN-NEXT: %ext:_(s32) = G_ANYEXT [[INT]](s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%one:_(s16) = G_FCONSTANT half 1.0
%rsq:_(s16) = contract G_FDIV %one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: rsq_f16_missing_contract0
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f16_missing_contract0
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s16) = G_FSQRT %x
; GCN-NEXT: %one:_(s16) = G_FCONSTANT half 1.000000e+00
; GCN-NEXT: %rsq:_(s16) = contract G_FDIV %one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = G_FSQRT %x
%one:_(s16) = G_FCONSTANT half 1.0
%rsq:_(s16) = contract G_FDIV %one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: rsq_f16_missing_contract1
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f16_missing_contract1
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s16) = contract G_FSQRT %x
; GCN-NEXT: %one:_(s16) = G_FCONSTANT half 1.000000e+00
; GCN-NEXT: %rsq:_(s16) = G_FDIV %one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%one:_(s16) = G_FCONSTANT half 1.0
%rsq:_(s16) = G_FDIV %one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: neg_rsq_f16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: neg_rsq_f16
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: [[INT:%[0-9]+]]:_(s16) = contract G_INTRINSIC intrinsic(@llvm.amdgcn.rsq), %x(s16)
; GCN-NEXT: %rsq:_(s16) = contract G_FNEG [[INT]]
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%neg_one:_(s16) = G_FCONSTANT half -1.0
%rsq:_(s16) = contract G_FDIV %neg_one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: neg_rsq_f16_missing_contract0
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: neg_rsq_f16_missing_contract0
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s16) = G_FSQRT %x
; GCN-NEXT: %neg_one:_(s16) = G_FCONSTANT half -1.000000e+00
; GCN-NEXT: %rsq:_(s16) = contract G_FDIV %neg_one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = G_FSQRT %x
%neg_one:_(s16) = G_FCONSTANT half -1.0
%rsq:_(s16) = contract G_FDIV %neg_one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: neg_rsq_f16_missing_contract1
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: neg_rsq_f16_missing_contract1
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s16) = contract G_FSQRT %x
; GCN-NEXT: %neg_one:_(s16) = G_FCONSTANT half -1.000000e+00
; GCN-NEXT: %rsq:_(s16) = G_FDIV %neg_one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%neg_one:_(s16) = G_FCONSTANT half -1.0
%rsq:_(s16) = G_FDIV %neg_one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: rsq_f16_multi_use
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f16_multi_use
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s16) = contract G_FSQRT %x
; GCN-NEXT: %one:_(s16) = G_FCONSTANT half 1.000000e+00
; GCN-NEXT: %rsq:_(s16) = contract G_FDIV %one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
; GCN-NEXT: S_ENDPGM 0, implicit %sqrt(s16)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%one:_(s16) = G_FCONSTANT half 1.0
%rsq:_(s16) = contract G_FDIV %one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
S_ENDPGM 0, implicit %sqrt
...
---
name: rsq_f16_multi_use_missing_contract0
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f16_multi_use_missing_contract0
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s16) = G_FSQRT %x
; GCN-NEXT: %one:_(s16) = G_FCONSTANT half 1.000000e+00
; GCN-NEXT: %rsq:_(s16) = contract G_FDIV %one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
; GCN-NEXT: S_ENDPGM 0, implicit %sqrt(s16)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = G_FSQRT %x
%one:_(s16) = G_FCONSTANT half 1.0
%rsq:_(s16) = contract G_FDIV %one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
S_ENDPGM 0, implicit %sqrt
...
---
name: rsq_f16_multi_use_missing_contract1
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f16_multi_use_missing_contract1
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s16) = contract G_FSQRT %x
; GCN-NEXT: %one:_(s16) = G_FCONSTANT half 1.000000e+00
; GCN-NEXT: %rsq:_(s16) = G_FDIV %one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
; GCN-NEXT: S_ENDPGM 0, implicit %sqrt(s16)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%one:_(s16) = G_FCONSTANT half 1.0
%rsq:_(s16) = G_FDIV %one, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
S_ENDPGM 0, implicit %sqrt
...
---
name: rsq_f32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f32
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: %x:_(s32) = COPY $vgpr0
; GCN-NEXT: %sqrt:_(s32) = contract G_FSQRT %x
; GCN-NEXT: %one:_(s32) = G_FCONSTANT float 1.000000e+00
; GCN-NEXT: %rsq:_(s32) = contract G_FDIV %one, %sqrt
; GCN-NEXT: $vgpr0 = COPY %rsq(s32)
%x:_(s32) = COPY $vgpr0
%sqrt:_(s32) = contract G_FSQRT %x
%one:_(s32) = G_FCONSTANT float 1.0
%rsq:_(s32) = contract G_FDIV %one, %sqrt
$vgpr0 = COPY %rsq
...
---
name: neg_rsq_f32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: neg_rsq_f32
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: %x:_(s32) = COPY $vgpr0
; GCN-NEXT: %sqrt:_(s32) = contract G_FSQRT %x
; GCN-NEXT: %neg_one:_(s32) = G_FCONSTANT float -1.000000e+00
; GCN-NEXT: %rsq:_(s32) = contract G_FDIV %neg_one, %sqrt
; GCN-NEXT: $vgpr0 = COPY %rsq(s32)
%x:_(s32) = COPY $vgpr0
%sqrt:_(s32) = contract G_FSQRT %x
%neg_one:_(s32) = G_FCONSTANT float -1.0
%rsq:_(s32) = contract G_FDIV %neg_one, %sqrt
$vgpr0 = COPY %rsq
...
---
name: afn_rsq_f32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: afn_rsq_f32
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: %x:_(s32) = COPY $vgpr0
; GCN-NEXT: %sqrt:_(s32) = contract afn G_FSQRT %x
; GCN-NEXT: %one:_(s32) = G_FCONSTANT float 1.000000e+00
; GCN-NEXT: %rsq:_(s32) = contract afn G_FDIV %one, %sqrt
; GCN-NEXT: $vgpr0 = COPY %rsq(s32)
%x:_(s32) = COPY $vgpr0
%sqrt:_(s32) = contract afn G_FSQRT %x
%one:_(s32) = G_FCONSTANT float 1.0
%rsq:_(s32) = contract afn G_FDIV %one, %sqrt
$vgpr0 = COPY %rsq
...
---
name: afn_rsq_f32_multi_use
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: afn_rsq_f32_multi_use
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: %x:_(s32) = COPY $vgpr0
; GCN-NEXT: %sqrt:_(s32) = contract afn G_FSQRT %x
; GCN-NEXT: %one:_(s32) = G_FCONSTANT float 1.000000e+00
; GCN-NEXT: %rsq:_(s32) = contract afn G_FDIV %one, %sqrt
; GCN-NEXT: %ret:_(s32) = G_FSUB %sqrt, %rsq
; GCN-NEXT: $vgpr0 = COPY %ret(s32)
%x:_(s32) = COPY $vgpr0
%sqrt:_(s32) = contract afn G_FSQRT %x
%one:_(s32) = G_FCONSTANT float 1.0
%rsq:_(s32) = contract afn G_FDIV %one, %sqrt
%ret:_(s32) = G_FSUB %sqrt, %rsq
$vgpr0 = COPY %ret
...
---
name: afn_neg_rsq_f32
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: afn_neg_rsq_f32
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: %x:_(s32) = COPY $vgpr0
; GCN-NEXT: %sqrt:_(s32) = contract afn G_FSQRT %x
; GCN-NEXT: %neg_one:_(s32) = G_FCONSTANT float -1.000000e+00
; GCN-NEXT: %rsq:_(s32) = contract afn G_FDIV %neg_one, %sqrt
; GCN-NEXT: $vgpr0 = COPY %rsq(s32)
%x:_(s32) = COPY $vgpr0
%sqrt:_(s32) = contract afn G_FSQRT %x
%neg_one:_(s32) = G_FCONSTANT float -1.0
%rsq:_(s32) = contract afn G_FDIV %neg_one, %sqrt
$vgpr0 = COPY %rsq
...
---
name: rsq_f64
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_f64
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s64) = G_ANYEXT [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s64) = contract G_FSQRT %x
; GCN-NEXT: %one:_(s64) = G_FCONSTANT double 1.000000e+00
; GCN-NEXT: %rsq:_(s64) = contract G_FDIV %one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_TRUNC %rsq(s64)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s64) = G_ANYEXT %0:_(s32)
%sqrt:_(s64) = contract G_FSQRT %x
%one:_(s64) = G_FCONSTANT double 1.0
%rsq:_(s64) = contract G_FDIV %one, %sqrt
%ext:_(s32) = G_TRUNC %rsq:_(s64)
$vgpr0 = COPY %ext
...
---
name: neg_rsq_f64
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: neg_rsq_f64
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s64) = G_ANYEXT [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s64) = contract G_FSQRT %x
; GCN-NEXT: %neg_one:_(s64) = G_FCONSTANT double -1.000000e+00
; GCN-NEXT: %rsq:_(s64) = contract G_FDIV %neg_one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_TRUNC %rsq(s64)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s64) = G_ANYEXT %0:_(s32)
%sqrt:_(s64) = contract G_FSQRT %x
%neg_one:_(s64) = G_FCONSTANT double -1.0
%rsq:_(s64) = contract G_FDIV %neg_one, %sqrt
%ext:_(s32) = G_TRUNC %rsq:_(s64)
$vgpr0 = COPY %ext
...
---
name: afn_rsq_f64
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: afn_rsq_f64
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s64) = G_ANYEXT [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s64) = contract afn G_FSQRT %x
; GCN-NEXT: %one:_(s64) = G_FCONSTANT double 1.000000e+00
; GCN-NEXT: %rsq:_(s64) = contract afn G_FDIV %one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_TRUNC %rsq(s64)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s64) = G_ANYEXT %0:_(s32)
%sqrt:_(s64) = contract afn G_FSQRT %x
%one:_(s64) = G_FCONSTANT double 1.0
%rsq:_(s64) = contract afn G_FDIV %one, %sqrt
%ext:_(s32) = G_TRUNC %rsq:_(s64)
$vgpr0 = COPY %ext
...
---
name: afn_neg_rsq_f64
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: afn_neg_rsq_f64
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s64) = G_ANYEXT [[COPY]](s32)
; GCN-NEXT: %sqrt:_(s64) = contract afn G_FSQRT %x
; GCN-NEXT: %neg_one:_(s64) = G_FCONSTANT double -1.000000e+00
; GCN-NEXT: %rsq:_(s64) = contract afn G_FDIV %neg_one, %sqrt
; GCN-NEXT: %ext:_(s32) = G_TRUNC %rsq(s64)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s64) = G_ANYEXT %0:_(s32)
%sqrt:_(s64) = contract afn G_FSQRT %x
%neg_one:_(s64) = G_FCONSTANT double -1.0
%rsq:_(s64) = contract afn G_FDIV %neg_one, %sqrt
%ext:_(s32) = G_TRUNC %rsq:_(s64)
$vgpr0 = COPY %ext
...
---
name: rsq_fract_num_f16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_fract_num_f16
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %fract:_(s16) = G_FCONSTANT half 5.000000e-01
; GCN-NEXT: [[INT:%[0-9]+]]:_(s16) = contract G_INTRINSIC intrinsic(@llvm.amdgcn.rsq), %x(s16)
; GCN-NEXT: %rsq:_(s16) = contract G_FMUL [[INT]], %fract
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%fract:_(s16) = G_FCONSTANT half 0.5
%rsq:_(s16) = contract G_FDIV %fract, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: neg_rsq_fract_num_f16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: neg_rsq_fract_num_f16
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %neg_fract:_(s16) = G_FCONSTANT half -5.000000e-01
; GCN-NEXT: [[INT:%[0-9]+]]:_(s16) = contract G_INTRINSIC intrinsic(@llvm.amdgcn.rsq), %x(s16)
; GCN-NEXT: %rsq:_(s16) = contract G_FMUL [[INT]], %neg_fract
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%neg_fract:_(s16) = G_FCONSTANT half -0.5
%rsq:_(s16) = contract G_FDIV %neg_fract, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: rsq_large_num_f16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: rsq_large_num_f16
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %ten:_(s16) = G_FCONSTANT half 1.000000e+01
; GCN-NEXT: [[INT:%[0-9]+]]:_(s16) = contract G_INTRINSIC intrinsic(@llvm.amdgcn.rsq), %x(s16)
; GCN-NEXT: %rsq:_(s16) = contract G_FMUL [[INT]], %ten
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%ten:_(s16) = G_FCONSTANT half 10.0
%rsq:_(s16) = contract G_FDIV %ten, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
---
name: neg_rsq_large_num_f16
tracksRegLiveness: true
body: |
bb.0:
liveins: $vgpr0
; GCN-LABEL: name: neg_rsq_large_num_f16
; GCN: liveins: $vgpr0
; GCN-NEXT: {{ $}}
; GCN-NEXT: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GCN-NEXT: %x:_(s16) = G_TRUNC [[COPY]](s32)
; GCN-NEXT: %neg_ten:_(s16) = G_FCONSTANT half -1.000000e+01
; GCN-NEXT: [[INT:%[0-9]+]]:_(s16) = contract G_INTRINSIC intrinsic(@llvm.amdgcn.rsq), %x(s16)
; GCN-NEXT: %rsq:_(s16) = contract G_FMUL [[INT]], %neg_ten
; GCN-NEXT: %ext:_(s32) = G_ANYEXT %rsq(s16)
; GCN-NEXT: $vgpr0 = COPY %ext(s32)
%0:_(s32) = COPY $vgpr0
%x:_(s16) = G_TRUNC %0:_(s32)
%sqrt:_(s16) = contract G_FSQRT %x
%neg_ten:_(s16) = G_FCONSTANT half -10.0
%rsq:_(s16) = contract G_FDIV %neg_ten, %sqrt
%ext:_(s32) = G_ANYEXT %rsq:_(s16)
$vgpr0 = COPY %ext
...
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