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llvm-mirror/test/CodeGen/AMDGPU/lo16-hi16-illegal-copy.mir
Stanislav Mekhanoshin ff27bce210 [AMDGPU] Drop 16 bit subreg suffixes on print
We do not want to break asm syntax. These suffixes are
quite useful for debugging, so add an option to print
them. Right now it is NFC.

Differential Revision: https://reviews.llvm.org/D79435
2020-05-06 08:14:10 -07:00

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2.3 KiB
YAML

# RUN: not llc -march=amdgcn -mcpu=gfx802 -start-before postrapseudos -asm-verbose=0 -amdgpu-keep-16-bit-reg-suffixes -verify-machineinstrs %s -o - 2>&1 | FileCheck -check-prefixes=ERR,GFX8-ERR %s
# RUN: not llc -march=amdgcn -mcpu=gfx802 -start-before postrapseudos -asm-verbose=0 -amdgpu-keep-16-bit-reg-suffixes -verify-machineinstrs %s -o - 2>&1 | FileCheck -check-prefix=GCN %s
# RUN: not llc -march=amdgcn -mcpu=gfx900 -start-before postrapseudos -asm-verbose=0 -amdgpu-keep-16-bit-reg-suffixes -verify-machineinstrs %s -o - 2>&1 | FileCheck -check-prefix=ERR %s
# RUN: not llc -march=amdgcn -mcpu=gfx900 -start-before postrapseudos -asm-verbose=0 -amdgpu-keep-16-bit-reg-suffixes -verify-machineinstrs %s -o - 2>&1 | FileCheck -check-prefixes=GCN,GFX9 %s
# Note: GFX8 did not allow SDWA SGPR sources. Therefor no HI16 subregs can be used there.
# GCN-LABEL: {{^}}lo_to_lo_illegal_vgpr_to_sgpr:
# GCN: ; illegal copy v0.l to s1.l
# ERR: error: <unknown>:0:0: in function lo_to_lo_illegal_vgpr_to_sgpr void (): illegal SGPR to VGPR copy
name: lo_to_lo_illegal_vgpr_to_sgpr
tracksRegLiveness: true
body: |
bb.0:
$vgpr0 = IMPLICIT_DEF
$sgpr1_lo16 = COPY $vgpr0_lo16
S_ENDPGM 0
...
# GCN-LABEL: {{^}}lo_to_hi_sgpr_to_vgpr:
# GFX8: ; illegal copy s0.l to v1.h
# GFX9: v_mov_b32_sdwa v1, s0 dst_sel:WORD_1 dst_unused:UNUSED_PRESERVE src0_sel:WORD_0
# GFX8-ERR: error: <unknown>:0:0: in function lo_to_hi_sgpr_to_vgpr void (): Cannot use hi16 subreg on VI!
name: lo_to_hi_sgpr_to_vgpr
tracksRegLiveness: true
body: |
bb.0:
$sgpr0 = IMPLICIT_DEF
$vgpr1_hi16 = COPY killed $sgpr0_lo16
S_ENDPGM 0
...
# GCN-LABEL: {{^}}lo_to_lo_illegal_agpr_to_sgpr:
# GCN: ; illegal copy a0.l to s1.l
# ERR: error: <unknown>:0:0: in function lo_to_lo_illegal_agpr_to_sgpr void (): illegal SGPR to VGPR copy
name: lo_to_lo_illegal_agpr_to_sgpr
tracksRegLiveness: true
body: |
bb.0:
$agpr0 = IMPLICIT_DEF
$sgpr1_lo16 = COPY $agpr0_lo16
S_ENDPGM 0
...
# GCN-LABEL: {{^}}lo_to_hi_vgpr_to_agpr:
# GCN: ; illegal copy v0.h to a1.l
# ERR: error: <unknown>:0:0: in function lo_to_hi_vgpr_to_agpr void (): Cannot use hi16 subreg with an AGPR!
name: lo_to_hi_vgpr_to_agpr
tracksRegLiveness: true
body: |
bb.0:
$vgpr0 = IMPLICIT_DEF
$agpr1_lo16 = COPY killed $vgpr0_hi16
S_ENDPGM 0
...