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59de807f62
This is the groundwork required to implement strictfp. For now, this should be NFC for regular instructoins (many instructions just gain an extra use of a reserved register). Regalloc won't rematerialize instructions with reads of physical registers, but we were suffering from that anyway with the exec reads. Should add it for all the related FP uses (possibly with some extras). I did not add it to either the gpr index mode instructions (or every single VALU instruction) since it's a ridiculous feature already modeled as an arbitrary side effect. Also work towards marking instructions with FP exceptions. This doesn't actually set the bit yet since this would start to change codegen. It seems nofpexcept is currently not implied from the regular IR FP operations. Add it to some MIR tests where I think it might matter.
204 lines
5.6 KiB
YAML
204 lines
5.6 KiB
YAML
# RUN: llc -march=amdgcn -mcpu=gfx1010 %s -run-pass twoaddressinstruction -verify-machineinstrs -o - | FileCheck -check-prefix=GCN %s
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# GCN-LABEL: name: test_fmamk_reg_imm_f32
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# GCN: V_FMAMK_F32 killed %0.sub0, 1078523331, killed %1, implicit $mode, implicit $exec
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---
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name: test_fmamk_reg_imm_f32
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registers:
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- { id: 0, class: vreg_64 }
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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- { id: 3, class: vgpr_32 }
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body: |
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bb.0:
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%0 = IMPLICIT_DEF
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%1 = COPY %0.sub1
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%2 = V_MOV_B32_e32 1078523331, implicit $exec
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%3 = V_FMAC_F32_e32 killed %0.sub0, %2, killed %1, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmamk_imm_reg_f32
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# GCN: V_FMAMK_F32 killed %0.sub0, 1078523331, killed %1, implicit $mode, implicit $exec
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---
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name: test_fmamk_imm_reg_f32
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registers:
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- { id: 0, class: vreg_64 }
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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- { id: 3, class: vgpr_32 }
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body: |
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bb.0:
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%0 = IMPLICIT_DEF
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%1 = COPY %0.sub1
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%2 = V_MOV_B32_e32 1078523331, implicit $exec
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%3 = V_FMAC_F32_e32 %2, killed %0.sub0, killed %1, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmaak_f32
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# GCN: V_FMAAK_F32 killed %0.sub0, %0.sub1, 1078523331, implicit $mode, implicit $exec
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---
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name: test_fmaak_f32
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registers:
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- { id: 0, class: vreg_64 }
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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body: |
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bb.0:
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%0 = IMPLICIT_DEF
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%1 = V_MOV_B32_e32 1078523331, implicit $exec
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%2 = V_FMAC_F32_e32 killed %0.sub0, %0.sub1, %1, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmamk_reg_imm_f16
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# GCN: V_FMAMK_F16 killed %0.sub0, 1078523331, killed %1, implicit $mode, implicit $exec
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---
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name: test_fmamk_reg_imm_f16
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registers:
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- { id: 0, class: vreg_64 }
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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- { id: 3, class: vgpr_32 }
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body: |
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bb.0:
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%0 = IMPLICIT_DEF
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%1 = COPY %0.sub1
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%2 = V_MOV_B32_e32 1078523331, implicit $exec
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%3 = V_FMAC_F16_e32 killed %0.sub0, %2, killed %1, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmamk_imm_reg_f16
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# GCN: V_FMAMK_F16 killed %0.sub0, 1078523331, killed %1, implicit $mode, implicit $exec
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---
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name: test_fmamk_imm_reg_f16
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registers:
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- { id: 0, class: vreg_64 }
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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- { id: 3, class: vgpr_32 }
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body: |
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bb.0:
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%0 = IMPLICIT_DEF
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%1 = COPY %0.sub1
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%2 = V_MOV_B32_e32 1078523331, implicit $exec
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%3 = V_FMAC_F16_e32 %2, killed %0.sub0, killed %1, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmaak_f16
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# GCN: V_FMAAK_F16 killed %0.sub0, %0.sub1, 1078523331, implicit $mode, implicit $exec
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---
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name: test_fmaak_f16
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registers:
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- { id: 0, class: vreg_64 }
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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body: |
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bb.0:
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%0 = IMPLICIT_DEF
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%1 = V_MOV_B32_e32 1078523331, implicit $exec
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%2 = V_FMAC_F16_e32 killed %0.sub0, %0.sub1, %1, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmaak_sgpr_src0_f32
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# GCN: %2:vgpr_32 = V_FMAMK_F32 killed %0, 1078523331, %3:vgpr_32, implicit $mode, implicit $exec
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---
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name: test_fmaak_sgpr_src0_f32
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registers:
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- { id: 0, class: sreg_32_xm0 }
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- { id: 1, class: vgpr_32}
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- { id: 2, class: vgpr_32 }
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- { id: 3, class: vgpr_32 }
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body: |
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bb.0:
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%0 = IMPLICIT_DEF
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%1 = V_MOV_B32_e32 1078523331, implicit $exec
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%2 = V_FMAC_F32_e32 killed %0, %1, %3, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmaak_inlineimm_src0_f32
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# GCN: %1:vgpr_32 = V_FMAMK_F32 1073741824, 1078523331, %2:vgpr_32, implicit $mode, implicit $exec
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---
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name: test_fmaak_inlineimm_src0_f32
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registers:
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- { id: 0, class: vgpr_32}
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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body: |
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bb.0:
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%0 = V_MOV_B32_e32 1078523331, implicit $exec
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%1 = V_FMAC_F32_e32 1073741824, %0, %2, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmaak_otherimm_src0_f32
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# GCN: %1:vgpr_32 = V_FMAC_F32_e32 1120403456, %0, %1, implicit $mode, implicit $exec
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---
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name: test_fmaak_otherimm_src0_f32
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registers:
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- { id: 0, class: vgpr_32}
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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body: |
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bb.0:
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%0 = V_MOV_B32_e32 1078523331, implicit $exec
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%1 = V_FMAC_F32_e32 1120403456, %0, %2, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmaak_other_constantlike_src0_f32
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# GCN: %1:vgpr_32 = V_FMAC_F32_e32 %stack.0, %0, %1, implicit $mode, implicit $exec
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---
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name: test_fmaak_other_constantlike_src0_f32
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registers:
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- { id: 0, class: vgpr_32}
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- { id: 1, class: vgpr_32 }
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- { id: 2, class: vgpr_32 }
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stack:
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- { id: 0, name: "", type: default, offset: 0, size: 128, alignment: 8,
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callee-saved-register: '', local-offset: 0, debug-info-variable: '',
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debug-info-expression: '', debug-info-location: '' }
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body: |
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bb.0:
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%0 = V_MOV_B32_e32 1078523331, implicit $exec
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%1 = V_FMAC_F32_e32 %stack.0, %0, %2, implicit $mode, implicit $exec
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...
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# GCN-LABEL: name: test_fmaak_inline_literal_f16
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# GCN: %2:vgpr_32 = V_FMAAK_F16 16384, killed %0, 49664, implicit $mode, implicit $exec
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---
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name: test_fmaak_inline_literal_f16
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liveins:
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- { reg: '$vgpr0', virtual-reg: '%3' }
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body: |
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bb.0:
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liveins: $vgpr0
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%3:vgpr_32 = COPY killed $vgpr0
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%26:vgpr_32 = V_MOV_B32_e32 49664, implicit $exec
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%28:vgpr_32 = V_FMAC_F16_e32 16384, killed %3, %26, implicit $mode, implicit $exec
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S_ENDPGM 0
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...
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