5b18ef7256
Extend the literal operand checking in SIInstrInfo::verifyInstruction to check VOP2 instructions like V_FMAAK_F32 which have a mandatory literal operand. The rule is that src0 can also be a literal, but only if it is the same literal value. AMDGPUAsmParser::validateConstantBusLimitations already handles this correctly. Differential Revision: https://reviews.llvm.org/D126063
54 lines
1.5 KiB
YAML
54 lines
1.5 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
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# RUN: llc -march=amdgcn -mcpu=gfx1010 -run-pass machineverifier -o - %s | FileCheck %s
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# Two uses of the same literal only count as one use of the constant bus.
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---
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name: use_duplicate_literal_cndmask
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vcc_lo
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; CHECK-LABEL: name: use_duplicate_literal_cndmask
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; CHECK: liveins: $vcc_lo
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; CHECK: $vgpr0 = V_CNDMASK_B32_e64 0, 1234567, 0, 1234567, killed $vcc_lo, implicit $exec
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$vgpr0 = V_CNDMASK_B32_e64 0, 1234567, 0, 1234567, killed $vcc_lo, implicit $exec
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...
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---
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name: use_duplicate_literal_fma
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vgpr0
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; CHECK-LABEL: name: use_duplicate_literal_fma
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; CHECK: liveins: $vgpr0
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; CHECK: $vgpr0 = V_FMA_F32_e64 0, $vgpr0, 0, 1077936128, 0, 1077936128, 0, 0, implicit $mode, implicit $exec
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$vgpr0 = V_FMA_F32_e64 0, $vgpr0, 0, 1077936128, 0, 1077936128, 0, 0, implicit $mode, implicit $exec
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...
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---
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name: use_duplicate_literal_fmaak
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tracksRegLiveness: true
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body: |
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bb.0:
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liveins: $vgpr0
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$vgpr0 = V_FMAAK_F32 1077936128, $vgpr0, 1077936128, implicit $mode, implicit $exec
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...
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---
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name: use_duplicate_literal_sop2
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tracksRegLiveness: true
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body: |
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bb.0:
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$sgpr0 = S_ADD_U32 12345, 12345, implicit-def $scc
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...
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---
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name: use_duplicate_literal_sopc
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tracksRegLiveness: true
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body: |
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bb.0:
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S_CMP_LG_U32 305419896, 305419896, implicit-def $scc
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...
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