[llvm] unpack packed instructions overlapped by MFMAs post-RA scheduling (PR #157968)
Jeffrey Byrnes via llvm-commits
llvm-commits at lists.llvm.org
Fri Sep 12 14:24:58 PDT 2025
================
@@ -0,0 +1,328 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 5
+# RUN: llc -mtriple amdgcn-amd-amdhsa -mcpu=gfx950 -run-pass=si-pre-emit-peephole -o - %s | FileCheck -check-prefix=GCN %s
+
+---
+name: test_pk_mul_unpacking_f32
+tracksRegLiveness: true
+
+liveins:
+ - { reg: '$sgpr4_sgpr5' }
+
+body: |
+ bb.0.entry:
+ liveins: $sgpr4_sgpr5
+ ; GCN-LABEL: name: test_pk_mul_unpacking_f32
+ ; GCN: liveins: $sgpr4_sgpr5
+ ; GCN-NEXT: {{ $}}
+ ; GCN-NEXT: early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ ; GCN-NEXT: renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ ; GCN-NEXT: S_WAITCNT 49279
+ ; GCN-NEXT: renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: S_WAITCNT 49279
+ ; GCN-NEXT: $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ ; GCN-NEXT: $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ ; GCN-NEXT: $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ ; GCN-NEXT: $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ ; GCN-NEXT: early-clobber renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr16 = nofpexcept V_MUL_F32_e64 0, killed $sgpr30, 0, killed $vgpr4, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr17 = nofpexcept V_MUL_F32_e64 0, killed $sgpr31, 0, killed $vgpr5, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: S_ENDPGM 0
+ early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ S_WAITCNT 49279
+ renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ S_WAITCNT 49279
+ $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ renamable $vgpr16_vgpr17 = nofpexcept V_PK_MUL_F32 8, killed $sgpr30_sgpr31, 8, killed $vgpr4_vgpr5, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ S_ENDPGM 0
+
+...
+---
+name: test_op_sel_selection_unpacking_f32
+tracksRegLiveness: true
+
+liveins:
+ - { reg: '$sgpr4_sgpr5'}
+
+body: |
+ bb.0.entry:
+ liveins: $sgpr4_sgpr5
+ ; GCN-LABEL: name: test_op_sel_selection_unpacking_f32
+ ; GCN: liveins: $sgpr4_sgpr5
+ ; GCN-NEXT: {{ $}}
+ ; GCN-NEXT: early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ ; GCN-NEXT: renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ ; GCN-NEXT: S_WAITCNT 49279
+ ; GCN-NEXT: renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: S_WAITCNT 49279
+ ; GCN-NEXT: $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ ; GCN-NEXT: $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ ; GCN-NEXT: $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ ; GCN-NEXT: $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ ; GCN-NEXT: early-clobber renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr16 = nofpexcept V_MUL_F32_e64 0, killed $sgpr30, 0, killed $vgpr5, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr17 = nofpexcept V_MUL_F32_e64 0, killed $sgpr31, 0, killed $vgpr5, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: S_ENDPGM 0
+ early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ S_WAITCNT 49279
+ renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ S_WAITCNT 49279
+ $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ renamable $vgpr16_vgpr17 = nofpexcept V_PK_MUL_F32 8, killed $sgpr30_sgpr31, 12, killed $vgpr4_vgpr5, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ S_ENDPGM 0
+
+...
+---
+name: test_op_sel_hi_selection_unpacking_f32
+tracksRegLiveness: true
+
+liveins:
+ - { reg: '$sgpr4_sgpr5'}
+
+body: |
+ bb.0.entry:
+ liveins: $sgpr4_sgpr5
+ ; GCN-LABEL: name: test_op_sel_hi_selection_unpacking_f32
+ ; GCN: liveins: $sgpr4_sgpr5
+ ; GCN-NEXT: {{ $}}
+ ; GCN-NEXT: early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ ; GCN-NEXT: renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ ; GCN-NEXT: S_WAITCNT 49279
+ ; GCN-NEXT: renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: S_WAITCNT 49279
+ ; GCN-NEXT: $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ ; GCN-NEXT: $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ ; GCN-NEXT: $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ ; GCN-NEXT: $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ ; GCN-NEXT: early-clobber renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr16 = nofpexcept V_MUL_F32_e64 0, killed $sgpr30, 0, killed $vgpr4, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr17 = nofpexcept V_MUL_F32_e64 0, killed $sgpr30, 0, killed $vgpr5, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: S_ENDPGM 0
+ early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ S_WAITCNT 49279
+ renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ S_WAITCNT 49279
+ $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ renamable $vgpr16_vgpr17 = nofpexcept V_PK_MUL_F32 0, killed $sgpr30_sgpr31, 8, killed $vgpr4_vgpr5, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ S_ENDPGM 0
+
+...
+---
+name: test_pk_add_unpacking_f32
+tracksRegLiveness: true
+
+liveins:
+ - { reg: '$sgpr4_sgpr5' }
+
+body: |
+ bb.0.entry:
+ liveins: $sgpr4_sgpr5
+ ; GCN-LABEL: name: test_pk_add_unpacking_f32
+ ; GCN: liveins: $sgpr4_sgpr5
+ ; GCN-NEXT: {{ $}}
+ ; GCN-NEXT: early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ ; GCN-NEXT: renamable $vgpr4 = V_MOV_B32_e32 2, implicit $exec
+ ; GCN-NEXT: renamable $vgpr5 = V_MOV_B32_e32 1, implicit $exec
+ ; GCN-NEXT: renamable $vgpr2 = V_MOV_B32_e32 4, implicit $exec
+ ; GCN-NEXT: renamable $vgpr3 = V_MOV_B32_e32 3, implicit $exec
+ ; GCN-NEXT: renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM killed renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: renamable $vgpr16 = V_MOV_B32_e32 0, implicit $exec
+ ; GCN-NEXT: $agpr31 = V_ACCVGPR_WRITE_B32_e64 $sgpr15, implicit $exec, implicit-def $agpr16_agpr17_agpr18_agpr19_agpr20_agpr21_agpr22_agpr23_agpr24_agpr25_agpr26_agpr27_agpr28_agpr29_agpr30_agpr31, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr30 = V_ACCVGPR_WRITE_B32_e64 $sgpr14, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr29 = V_ACCVGPR_WRITE_B32_e64 $sgpr13, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr28 = V_ACCVGPR_WRITE_B32_e64 $sgpr12, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr27 = V_ACCVGPR_WRITE_B32_e64 $sgpr11, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr26 = V_ACCVGPR_WRITE_B32_e64 $sgpr10, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr25 = V_ACCVGPR_WRITE_B32_e64 $sgpr9, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr24 = V_ACCVGPR_WRITE_B32_e64 $sgpr8, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr23 = V_ACCVGPR_WRITE_B32_e64 $sgpr7, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr22 = V_ACCVGPR_WRITE_B32_e64 $sgpr6, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr21 = V_ACCVGPR_WRITE_B32_e64 $sgpr5, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr20 = V_ACCVGPR_WRITE_B32_e64 $sgpr4, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr19 = V_ACCVGPR_WRITE_B32_e64 $sgpr3, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr18 = V_ACCVGPR_WRITE_B32_e64 $sgpr2, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr17 = V_ACCVGPR_WRITE_B32_e64 $sgpr1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ ; GCN-NEXT: $agpr16 = V_ACCVGPR_WRITE_B32_e64 $sgpr0, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit $exec
+ ; GCN-NEXT: $vgpr0 = V_MOV_B32_e32 killed $sgpr18, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr1 = V_MOV_B32_e32 killed $sgpr19, implicit $exec, implicit $exec
+ ; GCN-NEXT: early-clobber renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_BF8_BF8_e64 killed $vgpr4_vgpr5, killed $vgpr2_vgpr3, killed $agpr16_agpr17_agpr18_agpr19_agpr20_agpr21_agpr22_agpr23_agpr24_agpr25_agpr26_agpr27_agpr28_agpr29_agpr30_agpr31, 1, 2, 3, implicit $mode, implicit $exec, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr2 = nofpexcept V_ADD_F32_e64 0, killed $sgpr2, 0, $vgpr0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr3 = nofpexcept V_ADD_F32_e64 0, killed $sgpr3, 0, $vgpr1, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr6 = nofpexcept V_ADD_F32_e64 0, killed $sgpr6, 0, $vgpr0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr7 = nofpexcept V_ADD_F32_e64 0, killed $sgpr7, 0, $vgpr1, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr4 = nofpexcept V_ADD_F32_e64 0, killed $sgpr4, 0, $vgpr0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr5 = nofpexcept V_ADD_F32_e64 0, killed $sgpr5, 0, $vgpr1, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: renamable $vgpr10_vgpr11 = nofpexcept V_PK_ADD_F32 8, killed $sgpr10_sgpr11, 8, $vgpr0_vgpr1, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: S_ENDPGM 0
+ early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ renamable $vgpr4 = V_MOV_B32_e32 2, implicit $exec
+ renamable $vgpr5 = V_MOV_B32_e32 1, implicit $exec
+ renamable $vgpr2 = V_MOV_B32_e32 4, implicit $exec
+ renamable $vgpr3 = V_MOV_B32_e32 3, implicit $exec
+ renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM killed renamable $sgpr40_sgpr41, 0, 0
+ early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ renamable $vgpr16 = V_MOV_B32_e32 0, implicit $exec
+ $agpr31 = V_ACCVGPR_WRITE_B32_e64 $sgpr15, implicit $exec, implicit-def $agpr16_agpr17_agpr18_agpr19_agpr20_agpr21_agpr22_agpr23_agpr24_agpr25_agpr26_agpr27_agpr28_agpr29_agpr30_agpr31, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr30 = V_ACCVGPR_WRITE_B32_e64 $sgpr14, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr29 = V_ACCVGPR_WRITE_B32_e64 $sgpr13, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr28 = V_ACCVGPR_WRITE_B32_e64 $sgpr12, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr27 = V_ACCVGPR_WRITE_B32_e64 $sgpr11, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr26 = V_ACCVGPR_WRITE_B32_e64 $sgpr10, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr25 = V_ACCVGPR_WRITE_B32_e64 $sgpr9, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr24 = V_ACCVGPR_WRITE_B32_e64 $sgpr8, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr23 = V_ACCVGPR_WRITE_B32_e64 $sgpr7, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr22 = V_ACCVGPR_WRITE_B32_e64 $sgpr6, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr21 = V_ACCVGPR_WRITE_B32_e64 $sgpr5, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr20 = V_ACCVGPR_WRITE_B32_e64 $sgpr4, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr19 = V_ACCVGPR_WRITE_B32_e64 $sgpr3, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr18 = V_ACCVGPR_WRITE_B32_e64 $sgpr2, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr17 = V_ACCVGPR_WRITE_B32_e64 $sgpr1, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
+ $agpr16 = V_ACCVGPR_WRITE_B32_e64 $sgpr0, implicit $exec, implicit $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15, implicit $exec
+ $vgpr0 = V_MOV_B32_e32 killed $sgpr18, implicit $exec, implicit $exec
+ $vgpr1 = V_MOV_B32_e32 killed $sgpr19, implicit $exec, implicit $exec
+ early-clobber renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_BF8_BF8_e64 killed $vgpr4_vgpr5, killed $vgpr2_vgpr3, killed $agpr16_agpr17_agpr18_agpr19_agpr20_agpr21_agpr22_agpr23_agpr24_agpr25_agpr26_agpr27_agpr28_agpr29_agpr30_agpr31, 1, 2, 3, implicit $mode, implicit $exec, implicit $mode, implicit $exec
+ renamable $vgpr2_vgpr3 = nofpexcept V_PK_ADD_F32 8, killed $sgpr2_sgpr3, 8, $vgpr0_vgpr1, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ renamable $vgpr6_vgpr7 = nofpexcept V_PK_ADD_F32 8, killed $sgpr6_sgpr7, 8, $vgpr0_vgpr1, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ renamable $vgpr4_vgpr5 = nofpexcept V_PK_ADD_F32 8, killed $sgpr4_sgpr5, 8, $vgpr0_vgpr1, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ renamable $vgpr10_vgpr11 = nofpexcept V_PK_ADD_F32 8, killed $sgpr10_sgpr11, 8, $vgpr0_vgpr1, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ S_ENDPGM 0
+
+
+...
+---
+name: test_pk_fma_unpacking_f32
+tracksRegLiveness: true
+
+liveins:
+ - { reg: '$sgpr4_sgpr5' }
+
+body: |
+ bb.0.entry:
+ liveins: $sgpr4_sgpr5
+ ; GCN-LABEL: name: test_pk_fma_unpacking_f32
+ ; GCN: liveins: $sgpr4_sgpr5
+ ; GCN-NEXT: {{ $}}
+ ; GCN-NEXT: early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ ; GCN-NEXT: renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ ; GCN-NEXT: renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ ; GCN-NEXT: $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ ; GCN-NEXT: $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ ; GCN-NEXT: $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ ; GCN-NEXT: early-clobber renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr16 = nofpexcept V_FMA_F32_e64 0, killed $sgpr30, 0, killed $vgpr4, 0, $vgpr4, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr17 = nofpexcept V_FMA_F32_e64 0, killed $sgpr30, 0, killed $vgpr5, 0, $vgpr5, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: S_ENDPGM 0
+ early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ renamable $vgpr16_vgpr17 = nofpexcept V_PK_FMA_F32 0, killed $sgpr30_sgpr31, 8, killed $vgpr4_vgpr5, 8, $vgpr4_vgpr5, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ S_ENDPGM 0
+
+...
+---
+name: test_unpacking_does_not_introduce_rw_dependency
+tracksRegLiveness: true
+
+liveins:
+ - { reg: '$sgpr4_sgpr5' }
+
+body: |
+ bb.0.entry:
+ liveins: $sgpr4_sgpr5
+ ; GCN-LABEL: name: test_unpacking_does_not_introduce_rw_dependency
+ ; GCN: liveins: $sgpr4_sgpr5
+ ; GCN-NEXT: {{ $}}
+ ; GCN-NEXT: early-clobber renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43 = S_LOAD_DWORDX8_IMM_ec killed renamable $sgpr4_sgpr5, 0, 0
+ ; GCN-NEXT: renamable $vgpr18 = V_MOV_B32_e32 0, implicit $exec
+ ; GCN-NEXT: renamable $sgpr44_sgpr45_sgpr46_sgpr47 = S_LOAD_DWORDX4_IMM renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: renamable $sgpr48_sgpr49_sgpr50_sgpr51 = S_LOAD_DWORDX4_IMM renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr0_sgpr1_sgpr2_sgpr3_sgpr4_sgpr5_sgpr6_sgpr7_sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr42_sgpr43, 0, 0
+ ; GCN-NEXT: early-clobber renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23_sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31 = S_LOAD_DWORDX16_IMM_ec killed renamable $sgpr40_sgpr41, 0, 0
+ ; GCN-NEXT: $vgpr0_vgpr1 = V_MOV_B64_e32 $sgpr44_sgpr45, implicit $exec, implicit-def $vgpr0_vgpr1_vgpr2_vgpr3, implicit $sgpr44_sgpr45_sgpr46_sgpr47
+ ; GCN-NEXT: $vgpr2_vgpr3 = V_MOV_B64_e32 killed $sgpr46_sgpr47, implicit $exec, implicit $sgpr44_sgpr45_sgpr46_sgpr47, implicit $exec
+ ; GCN-NEXT: $vgpr4_vgpr5 = V_MOV_B64_e32 $sgpr48_sgpr49, implicit $exec, implicit-def $vgpr4_vgpr5_vgpr6_vgpr7, implicit $sgpr48_sgpr49_sgpr50_sgpr51
+ ; GCN-NEXT: $vgpr6_vgpr7 = V_MOV_B64_e32 killed $sgpr50_sgpr51, implicit $exec, implicit $sgpr48_sgpr49_sgpr50_sgpr51, implicit $exec
+ ; GCN-NEXT: early-clobber renamable $agpr0_agpr1_agpr2_agpr3_agpr4_agpr5_agpr6_agpr7_agpr8_agpr9_agpr10_agpr11_agpr12_agpr13_agpr14_agpr15 = V_MFMA_F32_32X32X16_F16_e64 killed $vgpr0_vgpr1_vgpr2_vgpr3, killed $vgpr4_vgpr5_vgpr6_vgpr7, 0, 0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr4 = V_MOV_B32_e32 killed $sgpr14, implicit $exec, implicit $exec
+ ; GCN-NEXT: $vgpr5 = V_MOV_B32_e32 killed $sgpr15, implicit $exec, implicit $exec
+ ; GCN-NEXT: renamable $vgpr4_vgpr5 = nofpexcept V_PK_FMA_F32 8, $sgpr30_sgpr31, 8, $vgpr4_vgpr5, 0, $vgpr4_vgpr5, 0, 0, 0, 0, 0, implicit $mode, implicit $exec
+ ; GCN-NEXT: $vgpr4 = nofpexcept V_MUL_F32_e64 0, killed $sgpr30, 0, $vgpr5, 0, 0, implicit $mode, implicit $exec
----------------
jrbyrnes wrote:
Why does this get unpacked? We cannot coissue the previous V_PK_FMA, so there is no benefit to unpacking.
https://github.com/llvm/llvm-project/pull/157968
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