llvm/test/CodeGen/AMDGPU/regcoalescing-remove-partial-redundancy-assert.mir

# RUN: llc -mtriple=amdgcn -mcpu=gfx803 -run-pass register-coalescer -verify-machineinstrs -o - %s | FileCheck --check-prefix=GCN %s
#
# This test gave "Use not jointly dominated by defs" when
# removePartialRedundancy attempted to prune and then re-extend a subrange.
#
# GCN: {{^body}}

---
name:            _amdgpu_ps_main
tracksRegLiveness: true
body:             |
  bb.0:
    successors: %bb.1, %bb.2

    %21:vgpr_32 = nofpexcept V_TRUNC_F32_e32 undef %22:vgpr_32, implicit $mode, implicit $exec
    %23:vgpr_32 = nofpexcept V_CVT_U32_F32_e32 killed %21, implicit $mode, implicit $exec
    %108:vgpr_32 = V_LSHRREV_B32_e32 4, killed %23, implicit $exec
    undef %109.sub1:vreg_128 = COPY %108
    %28:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM undef %29:sgpr_128, 3044, 0 :: (dereferenceable invariant load (s32))
    S_CMP_EQ_U32 killed %28, 0, implicit-def $scc
    S_CBRANCH_SCC0 %bb.2, implicit killed $scc

  bb.1:
    %138:vreg_128 = COPY killed %109
    S_BRANCH %bb.9

  bb.2:
    successors: %bb.3, %bb.4

    S_CBRANCH_SCC0 %bb.4, implicit undef $scc

  bb.3:
    %136:vreg_128 = COPY killed %109
    S_BRANCH %bb.5

  bb.4:
    %136:vreg_128 = COPY killed %109

  bb.5:
    successors: %bb.6, %bb.8

    %110:vreg_128 = COPY killed %136
    dead %32:sreg_32_xm0 = S_MOV_B32 0
    %111:vreg_128 = COPY %110
    %111.sub3:vreg_128 = COPY undef %32
    S_CBRANCH_SCC1 %bb.8, implicit undef $scc
    S_BRANCH %bb.6

  bb.6:
    %36:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM undef %37:sgpr_128, 2708, 0 :: (dereferenceable invariant load (s32))
    %39:vgpr_32 = nnan arcp contract reassoc nofpexcept V_MAD_F32_e64 0, killed %110.sub1, 0, target-flags(amdgpu-gotprel32-lo) 0, 0, 0, 0, 0, implicit $mode, implicit $exec
    %40:vgpr_32 = nofpexcept V_MAD_F32_e64 0, %111.sub1, 0, target-flags(amdgpu-gotprel32-lo) 0, 0, 0, 0, 0, implicit $mode, implicit $exec
    %41:vgpr_32 = nofpexcept V_MUL_F32_e64 0, 0, 0, killed %40, 1, 0, implicit $mode, implicit $exec
    %43:vgpr_32 = nofpexcept V_MUL_F32_e32 0, %39, implicit $mode, implicit $exec
    %44:vgpr_32 = COPY killed %43
    %44:vgpr_32 = nofpexcept V_MAC_F32_e32 0, killed %41, %44, implicit $mode, implicit $exec
    %47:vgpr_32 = V_MOV_B32_e32 2143289344, implicit $exec
    %46:vgpr_32 = COPY killed %47
    %46:vgpr_32 = nofpexcept V_MAC_F32_e32 0, killed %39, %46, implicit $mode, implicit $exec
    undef %115.sub0:vreg_128 = COPY %46
    %115.sub1:vreg_128 = COPY killed %46
    %115.sub2:vreg_128 = COPY killed %44
    %50:sreg_64_xexec = V_CMP_NE_U32_e64 0, killed %36, implicit $exec
    dead %118:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
    %137:vreg_128 = IMPLICIT_DEF

  bb.7:
    successors: %bb.7, %bb.8

    %119:vreg_128 = COPY killed %137
    %121:vreg_128 = COPY killed %119
    %121.sub3:vreg_128 = COPY undef %32
    %56:vgpr_32 = nofpexcept V_ADD_F32_e32 %115.sub2, %121.sub2, implicit $mode, implicit $exec
    %59:vgpr_32 = nofpexcept V_ADD_F32_e32 %115.sub1, %121.sub1, implicit $mode, implicit $exec
    %62:vgpr_32 = nofpexcept V_ADD_F32_e32 %115.sub0, killed %121.sub0, implicit $mode, implicit $exec
    undef %117.sub0:vreg_128 = COPY killed %62
    %117.sub1:vreg_128 = COPY killed %59
    %117.sub2:vreg_128 = COPY killed %56
    %64:sreg_64 = S_AND_B64 $exec, %50, implicit-def dead $scc
    $vcc = COPY killed %64
    %137:vreg_128 = COPY killed %117
    S_CBRANCH_VCCNZ %bb.7, implicit killed $vcc
    S_BRANCH %bb.8

  bb.8:
    dead %66:sreg_32_xm0_xexec = S_BUFFER_LOAD_DWORD_IMM undef %67:sgpr_128, 2704, 0 :: (dereferenceable invariant load (s32))
    %138:vreg_128 = COPY killed %111

  bb.9:
    %113:vreg_128 = COPY killed %138
    S_CBRANCH_SCC1 %bb.18, implicit undef $scc
    S_BRANCH %bb.10

  bb.10:
    S_CBRANCH_SCC1 %bb.12, implicit undef $scc
    S_BRANCH %bb.11

  bb.11:

  bb.12:
    successors: %bb.13, %bb.18

    S_CBRANCH_SCC1 %bb.18, implicit undef $scc
    S_BRANCH %bb.13

  bb.13:
    successors: %bb.14, %bb.17

    S_CBRANCH_SCC1 %bb.17, implicit undef $scc
    S_BRANCH %bb.14

  bb.14:
    S_CBRANCH_SCC1 %bb.16, implicit undef $scc
    S_BRANCH %bb.15

  bb.15:

  bb.16:

  bb.17:

  bb.18:
    S_CBRANCH_SCC1 %bb.26, implicit undef $scc
    S_BRANCH %bb.19

  bb.19:
    S_CBRANCH_SCC1 %bb.26, implicit undef $scc
    S_BRANCH %bb.20

  bb.20:
    S_CBRANCH_SCC1 %bb.25, implicit undef $scc
    S_BRANCH %bb.21

  bb.21:
    successors: %bb.22, %bb.24

    S_CBRANCH_SCC1 %bb.24, implicit undef $scc
    S_BRANCH %bb.22

  bb.22:
    successors: %bb.23, %bb.24

    S_CBRANCH_SCC1 %bb.24, implicit undef $scc
    S_BRANCH %bb.23

  bb.23:

  bb.24:

  bb.25:

  bb.26:
    S_CBRANCH_SCC1 %bb.33, implicit undef $scc
    S_BRANCH %bb.27

  bb.27:
    S_CBRANCH_SCC1 %bb.33, implicit undef $scc
    S_BRANCH %bb.28

  bb.28:
    dead %77:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
    %78:vgpr_32 = nnan arcp contract reassoc nofpexcept V_MAD_F32_e64 0, killed %113.sub1, 0, target-flags(amdgpu-gotprel32-lo) 0, 0, 1065353216, 0, 0, implicit $mode, implicit $exec
    dead %80:sreg_32_xm0 = S_MOV_B32 0
    dead %82:vgpr_32 = nofpexcept V_MUL_F32_e32 killed %78, %78, implicit $mode, implicit $exec
    dead %126:vgpr_32 = V_MOV_B32_e32 2143289344, implicit $exec
    dead %125:vreg_128 = IMPLICIT_DEF
    dead %91:sreg_32_xm0 = S_MOV_B32 2143289344
    %96:sreg_64 = S_AND_B64 $exec, 0, implicit-def dead $scc
    %139:vreg_128 = IMPLICIT_DEF

  bb.29:
    successors: %bb.30, %bb.31

    dead %127:vreg_128 = COPY killed %139
    S_CBRANCH_SCC0 %bb.31, implicit undef $scc

  bb.30:
    S_BRANCH %bb.32

  bb.31:
    successors: %bb.32, %bb.34

    $vcc = COPY %96
    S_CBRANCH_VCCNZ %bb.34, implicit killed $vcc
    S_BRANCH %bb.32

  bb.32:
    dead %130:vreg_128 = IMPLICIT_DEF
    dead %128:vreg_128 = COPY undef %130
    %139:vreg_128 = IMPLICIT_DEF
    S_BRANCH %bb.29

  bb.33:
    S_ENDPGM 0

  bb.34:
    S_ENDPGM 0

...