3c31cde979
If the instruction with tied operands is a BUNDLE instruction and we handle it by replacing an operand, then we need to update the corresponding internal operands as well. Otherwise, the resulting MIR is invalid. The test case is degenerate in the sense that the bundle only contains a single instruction, but it is sufficient to exercise this issue.
58 lines
2.8 KiB
YAML
58 lines
2.8 KiB
YAML
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 6
|
|
# RUN: llc -mtriple=amdgcn -mcpu=gfx1200 %s --passes=two-address-instruction -verify-each -o - | FileCheck --check-prefixes=GCN %s
|
|
|
|
# Exercise very basic handling of BUNDLE'd instructions by the two-address-instruction pass.
|
|
|
|
# This test is an example where it is best to keep the two-address instruction
|
|
# and resolve the tie with a COPY that is expected to be coalesced.
|
|
---
|
|
name: test_fmac_bundle
|
|
body: |
|
|
bb.0:
|
|
|
|
; GCN-LABEL: name: test_fmac_bundle
|
|
; GCN: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
|
|
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY $vgpr1
|
|
; GCN-NEXT: [[V_ADD_U32_e64_:%[0-9]+]]:vgpr_32 = V_ADD_U32_e64 [[COPY]], [[COPY1]], 0, implicit $exec
|
|
; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
|
|
; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
|
|
; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = COPY [[V_ADD_U32_e64_]]
|
|
; GCN-NEXT: BUNDLE implicit-def [[COPY2]], implicit [[DEF]], implicit [[DEF1]], implicit [[COPY2]](tied-def 0), implicit $mode, implicit $exec {
|
|
; GCN-NEXT: [[COPY2:%[0-9]+]]:vgpr_32 = V_FMAC_F32_e32 killed [[DEF]], killed [[DEF1]], killed [[COPY2]], implicit $mode, implicit $exec
|
|
; GCN-NEXT: }
|
|
%10:vgpr_32 = COPY $vgpr0
|
|
%11:vgpr_32 = COPY $vgpr1
|
|
%2:vgpr_32 = V_ADD_U32_e64 %10, %11, 0, implicit $exec
|
|
%0:vgpr_32 = IMPLICIT_DEF
|
|
%1:vgpr_32 = IMPLICIT_DEF
|
|
BUNDLE implicit-def %3:vgpr_32, implicit %0, implicit %1, implicit killed %2(tied-def 0), implicit $mode, implicit $exec {
|
|
%3:vgpr_32 = V_FMAC_F32_e32 killed %0, killed %1, killed %2, implicit $mode, implicit $exec
|
|
}
|
|
|
|
...
|
|
|
|
# This test is an example where conversion to three-address form would be beneficial.
|
|
---
|
|
name: test_fmac_reuse_bundle
|
|
body: |
|
|
bb.0:
|
|
|
|
; GCN-LABEL: name: test_fmac_reuse_bundle
|
|
; GCN: [[COPY:%[0-9]+]]:vgpr_32 = COPY $vgpr0
|
|
; GCN-NEXT: [[DEF:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
|
|
; GCN-NEXT: [[DEF1:%[0-9]+]]:vgpr_32 = IMPLICIT_DEF
|
|
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = COPY [[COPY]]
|
|
; GCN-NEXT: BUNDLE implicit-def [[COPY1]], implicit [[DEF]], implicit [[DEF1]], implicit [[COPY1]](tied-def 0), implicit $mode, implicit $exec {
|
|
; GCN-NEXT: [[COPY1:%[0-9]+]]:vgpr_32 = V_FMAC_F32_e32 killed [[DEF]], killed [[DEF1]], killed [[COPY1]], implicit $mode, implicit $exec
|
|
; GCN-NEXT: }
|
|
; GCN-NEXT: [[V_ADD_U32_e64_:%[0-9]+]]:vgpr_32 = V_ADD_U32_e64 [[COPY1]], [[COPY]], 0, implicit $exec
|
|
%2:vgpr_32 = COPY $vgpr0
|
|
%0:vgpr_32 = IMPLICIT_DEF
|
|
%1:vgpr_32 = IMPLICIT_DEF
|
|
BUNDLE implicit-def %3:vgpr_32, implicit %0, implicit %1, implicit %2(tied-def 0), implicit $mode, implicit $exec {
|
|
%3:vgpr_32 = V_FMAC_F32_e32 killed %0, killed %1, killed %2, implicit $mode, implicit $exec
|
|
}
|
|
%4:vgpr_32 = V_ADD_U32_e64 %3, %2, 0, implicit $exec
|
|
|
|
...
|