bb18e49edb
Improve the non-fatal cases to use DiagnosticInfo, which will now provide a location. The allocators attempt to report different errors if it happens to see inline assembly is involved (this detection is quite unreliable) using srcloc instead of dbgloc. For now, leave this behavior unchanged. I think reporting the full location and context function would be more useful.
82 lines
5.5 KiB
YAML
82 lines
5.5 KiB
YAML
# RUN: not llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx908 -start-before=greedy,0 -stop-after=virtregrewriter,1 -verify-machineinstrs -o - 2> %t.err %s | FileCheck %s
|
|
# RUN: FileCheck -check-prefix=ERR %s < %t.err
|
|
|
|
# ERR: error: register allocation failed: maximum depth for recoloring reached. Use -fexhaustive-register-search to skip cutoffs
|
|
# ERR-NEXT: error: <unknown>:0:0: ran out of registers during register allocation
|
|
|
|
# This testcase used to fail with an "overlapping insert" assertion
|
|
# when trying to roll back an unsucessful recoloring of %25. One of
|
|
# the interfering vregs is successfully recolored, and the other is
|
|
# not. We need to roll back the successfully recolored interfering
|
|
# vreg in order to avoid conflicting with the original assignment of
|
|
# the original register when rolling back the second.
|
|
|
|
|
|
# %25 initially assigned to $sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67
|
|
# interfering candidates %15 %17
|
|
# assigned %15 to $sgpr8_sgpr9_sgpr10_sgpr11_sgpr12_sgpr13_sgpr14_sgpr15
|
|
# %15
|
|
# %18 -> normal recolored $sgpr28_sgpr29_sgpr30_sgpr31
|
|
# %20 -> normal recolored $sgpr60_sgpr61_sgpr62_sgpr63
|
|
# %17 candidates %37 %39
|
|
# tentative assign %17 $sgpr84_sgpr85_sgpr86_sgpr87_sgpr88_sgpr89_sgpr90_sgpr91
|
|
# %37 to $sgpr72_sgpr73_sgpr74_sgpr75 succeeded
|
|
# %39 last chance recoloring, fails max depth
|
|
# Fail to assign: %17 to $sgpr84_sgpr85_sgpr86_sgpr87_sgpr88_sgpr89_sgpr90_sgpr91 at depth 4
|
|
# %37 reassign to $sgpr84_sgpr85_sgpr86_sgpr87 unassign from $sgpr72_sgpr73_sgpr74_sgpr75
|
|
# %39 reassign to $sgpr88_sgpr89_sgpr90_sgpr91
|
|
# %17 candidates %39 %41
|
|
# Try to assign: %17 to $sgpr88_sgpr89_sgpr90_sgpr91_sgpr92_sgpr93_sgpr94_sgpr95
|
|
# %39 Try assign to $sgpr72_sgpr73_sgpr74_sgpr75 succeeded
|
|
# %41 last chance recoloring, fail max depth
|
|
# %39 reassign to $sgpr88_sgpr89_sgpr90_sgpr91 unassign from $sgpr72_sgpr73_sgpr74_sgpr75
|
|
# %41 reassign to $sgpr92_sgpr93_sgpr94_sgpr95
|
|
# %17 candidates %41 %16
|
|
# Try assign %41 to $sgpr72_sgpr73_sgpr74_sgpr75 succeeded
|
|
# %16 last chance recolor, fail max depth
|
|
# fail to recolor %17
|
|
#
|
|
# Have to roll back the succesful recoloring of %15 when %17's
|
|
# recoloring failed. Previously we would leave the recoloring of %18
|
|
# and %20 in place. The recoloring of %20 to
|
|
# $sgpr60_sgpr61_sgpr62_sgpr63 conflicts with the parent restore of
|
|
# %25 to $sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67
|
|
|
|
# CHECK-LABEL: name: issue48473
|
|
# CHECK: S_NOP 0, implicit killed renamable $sgpr0_sgpr1_sgpr2_sgpr3, implicit killed renamable $sgpr12_sgpr13_sgpr14_sgpr15, implicit killed renamable $sgpr16_sgpr17_sgpr18_sgpr19_sgpr20_sgpr21_sgpr22_sgpr23, implicit killed renamable $sgpr24_sgpr25_sgpr26_sgpr27_sgpr28_sgpr29_sgpr30_sgpr31, implicit killed renamable $sgpr84_sgpr85_sgpr86_sgpr87, implicit killed renamable $sgpr36_sgpr37_sgpr38_sgpr39_sgpr40_sgpr41_sgpr42_sgpr43, implicit killed renamable $sgpr4_sgpr5_sgpr6_sgpr7, implicit killed renamable $sgpr44_sgpr45_sgpr46_sgpr47_sgpr48_sgpr49_sgpr50_sgpr51, implicit killed renamable $sgpr88_sgpr89_sgpr90_sgpr91, implicit killed renamable $sgpr76_sgpr77_sgpr78_sgpr79_sgpr80_sgpr81_sgpr82_sgpr83, implicit killed renamable $sgpr0_sgpr1_sgpr2_sgpr3, implicit killed renamable $sgpr52_sgpr53_sgpr54_sgpr55_sgpr56_sgpr57_sgpr58_sgpr59, implicit killed renamable $sgpr92_sgpr93_sgpr94_sgpr95, implicit killed renamable $sgpr68_sgpr69_sgpr70_sgpr71_sgpr72_sgpr73_sgpr74_sgpr75, implicit renamable $sgpr68_sgpr69_sgpr70_sgpr71_sgpr72_sgpr73_sgpr74_sgpr75, implicit killed renamable $sgpr96_sgpr97_sgpr98_sgpr99, implicit killed renamable $sgpr8_sgpr9_sgpr10_sgpr11, implicit killed renamable $sgpr60_sgpr61_sgpr62_sgpr63_sgpr64_sgpr65_sgpr66_sgpr67
|
|
|
|
---
|
|
name: issue48473
|
|
tracksRegLiveness: true
|
|
machineFunctionInfo:
|
|
isEntryFunction: true
|
|
scratchRSrcReg: '$sgpr100_sgpr101_sgpr102_sgpr103'
|
|
stackPtrOffsetReg: '$sgpr32'
|
|
argumentInfo:
|
|
privateSegmentBuffer: { reg: '$sgpr0_sgpr1_sgpr2_sgpr3' }
|
|
privateSegmentWaveByteOffset: { reg: '$sgpr4' }
|
|
occupancy: 20
|
|
body: |
|
|
bb.0:
|
|
liveins: $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr4_sgpr5_sgpr6_sgpr7
|
|
|
|
%0:sgpr_128 = COPY $sgpr0_sgpr1_sgpr2_sgpr3
|
|
%1:sgpr_128 = COPY $sgpr4_sgpr5_sgpr6_sgpr7
|
|
%2:sgpr_256 = S_LOAD_DWORDX8_IMM undef %3:sgpr_64, 1000, 0 :: (load 32, addrspace 6)
|
|
%4:sgpr_256 = S_LOAD_DWORDX8_IMM undef %3:sgpr_64, 1088, 0 :: (load 32, addrspace 6)
|
|
%5:sgpr_256 = S_LOAD_DWORDX8_IMM undef %3:sgpr_64, 1152, 0 :: (load 32, addrspace 6)
|
|
%6:sgpr_256 = S_LOAD_DWORDX8_IMM undef %3:sgpr_64, 1216, 0 :: (load 32, addrspace 6)
|
|
%7:sgpr_256 = S_LOAD_DWORDX8_IMM undef %3:sgpr_64, 1280, 0 :: (load 32, addrspace 6)
|
|
%8:sgpr_256 = S_LOAD_DWORDX8_IMM undef %3:sgpr_64, 1408, 0 :: (load 32, addrspace 6)
|
|
%9:sgpr_128 = S_LOAD_DWORDX4_IMM undef %3:sgpr_64, 0, 0 :: (load 16, addrspace 6)
|
|
%10:sgpr_128 = S_LOAD_DWORDX4_IMM undef %3:sgpr_64, 0, 0 :: (load 16, addrspace 6)
|
|
%11:sgpr_128 = S_LOAD_DWORDX4_IMM undef %3:sgpr_64, 0, 0 :: (load 16, addrspace 6)
|
|
%12:sgpr_128 = S_LOAD_DWORDX4_IMM undef %3:sgpr_64, 0, 0 :: (load 16, addrspace 6)
|
|
%13:sgpr_128 = S_LOAD_DWORDX4_IMM undef %3:sgpr_64, 0, 0 :: (load 16, addrspace 6)
|
|
%14:sgpr_128 = IMPLICIT_DEF
|
|
S_NOP 0, implicit-def %15:sgpr_256, implicit-def %16:sgpr_128, implicit-def %17:sgpr_256
|
|
S_NOP 0, implicit %0, implicit %1, implicit %2, implicit %4, implicit %9, implicit %5, implicit %10, implicit %6, implicit %11, implicit %8, implicit %13, implicit %7, implicit %12, implicit %17, implicit %17, implicit %16, implicit %14, implicit %15
|
|
S_ENDPGM 0
|
|
|
|
...
|