| Issue |
130884
|
| Summary |
llvm/test/CodeGen/AMDGPU/shufflevector-physreg-copy.ll fails machine verifier after scheduling
|
| Labels |
backend:AMDGPU,
llvm:codegen
|
| Assignees |
|
| Reporter |
arsenm
|
This test disables the verifier to work around a bug in liveness in the scheduler:
```
# After Machine Instruction Scheduler
********** INTERVALS **********
SGPR16_LO16 [0B,32r:0) 0@0B-phi
SGPR16_HI16 [0B,32r:0) 0@0B-phi
SGPR17_LO16 [0B,16r:0) 0@0B-phi
SGPR17_HI16 [0B,16r:0) 0@0B-phi
VGPR4_LO16 [96r,104r:0) 0@96r
VGPR4_HI16 [96r,104r:0) 0@96r
VGPR5_LO16 [96r,100r:0) 0@96r
VGPR5_HI16 [96r,100r:0) 0@96r
%10 [16r,32r:0)[32r,176r:1) 0@16r 1@32r L0000000000000003 [32r,176r:0) 0@32r L000000000000000C [16r,176r:0) 0@16r weight:0.000000e+00
%11 [80r,176r:0) 0@80r weight:0.000000e+00
%18 [100r,104r:0)[104r,176r:1) 0@100r 1@104r L0000000000000003 [100r,176r:0) 0@100r L000000000000000C [104r,176r:0) 0@104r weight:0.000000e+00
RegMasks:
********** MACHINEINSTRS **********
# Machine code for function shufflevector_v2i32_10_physreg_even_vgpr_pair_copy: NoPHIs, TracksLiveness, TiedOpsRewritten
Function Live Ins: $sgpr16 in %8, $sgpr17 in %9
0B bb.0 (%ir-block.0):
liveins: $sgpr16, $sgpr17
16B undef %10.sub1:sgpr_64 = COPY $sgpr17
32B %10.sub0:sgpr_64 = COPY $sgpr16
80B %11:vgpr_32 = V_MOV_B32_e32 0, implicit $exec
96B INLINEASM &"; def $0, $1" [attdialect], $0:[regdef], implicit-def $vgpr4, $1:[regdef], implicit-def $vgpr5
100B %18.sub0:vreg_64 = COPY $vgpr5
104B undef %18.sub1:vreg_64 = COPY $vgpr4
176B GLOBAL_STORE_DWORDX2_SADDR %11:vgpr_32, %18:vreg_64, %10:sgpr_64, 0, 0, implicit $exec :: (store (s64) into %ir.ptr, addrspace 1)
192B SI_RETURN
# End machine code for function shufflevector_v2i32_10_physreg_even_vgpr_pair_copy.
*** Bad machine code: No live segment at use ***
- function: shufflevector_v2i32_10_physreg_even_vgpr_pair_copy
- basic block: %bb.0 (0x11e01b120) [0B;208B)
- instruction: 100B %18.sub0:vreg_64 = COPY $vgpr5
- operand 0: %18.sub0:vreg_64
- liverange: [100r,104r:0)[104r,176r:1) 0@100r 1@104r
- v. register: %18
- at: 100B
LLVM ERROR: Found 1 machine code errors.
```
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