derek.holloway
7502bf64a4
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75 lines
2.1 KiB
ArmAsm
75 lines
2.1 KiB
ArmAsm
// COM: SCC from a later zero-preserving descriptor write is live on one
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// COM: successor even though the other successor redefines it first. A linear
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// COM: scan sees the redefine and misses the use; CFG analysis must choose the
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// COM: at-site fallback.
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// RUN: %clang -target amdgcn-amd-amdhsa -mcpu=gfx1250 -nostdlib %s -o %t.elf
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// RUN: env AMD_COMGR_EMIT_VERBOSE_LOGS=1 hotswap-rewrite %t.elf \
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// RUN: amdgcn-amd-amdhsa--gfx1250 amdgcn-amd-amdhsa--gfx1250 \
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// RUN: --output %t.out.elf \
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// RUN: 2>&1 \
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// RUN: | %FileCheck --check-prefix=API %s
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// API: hotswap: tensor_load_to_lds: s4 dead, no save/restore needed
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// API: RESULT: SUCCESS
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// RUN: %llvm-objdump -d %t.out.elf | %FileCheck --check-prefix=DISASM %s
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// DISASM-LABEL: <test_tensor_cfg_live_scc>:
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// DISASM: s_and_b32 s4, s4, 0xfff7ffff
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// DISASM-NOT: s_and_b32 s4, s4, 0xfff70000
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// DISASM: s_pack_hh_b32_b16 s4, 0, s4
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// DISASM-NEXT: tensor_load_to_lds s[0:3], s[4:11]
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.amdgcn_target "amdgcn-amd-amdhsa--gfx1250"
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.text
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.globl test_tensor_cfg_live_scc
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.p2align 8
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.type test_tensor_cfg_live_scc,@function
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test_tensor_cfg_live_scc:
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s_mov_b32 s4, 0
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s_or_b32 s4, s4, s5
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s_and_b32 s4, s4, 0xfff7ffff
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s_and_b32 s4, s4, s5
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s_cbranch_execz .Luse_scc
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s_cmp_eq_u32 s0, s0
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s_branch .Ltensor
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.Luse_scc:
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s_cbranch_scc1 .Ltensor
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.Ltensor:
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tensor_load_to_lds s[0:3], s[4:11]
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s_endpgm
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s_nop 0
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s_nop 0
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s_nop 0
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s_nop 0
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s_nop 0
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s_nop 0
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s_nop 0
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s_nop 0
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.Ltest_tensor_cfg_live_scc_end:
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.size test_tensor_cfg_live_scc, .Ltest_tensor_cfg_live_scc_end-test_tensor_cfg_live_scc
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.rodata
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.p2align 8
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.amdhsa_kernel test_tensor_cfg_live_scc
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.amdhsa_next_free_vgpr 1
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.amdhsa_next_free_sgpr 12
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.end_amdhsa_kernel
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.amdgpu_metadata
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amdhsa.version:
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- 3
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- 0
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amdhsa.kernels:
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- .name: test_tensor_cfg_live_scc
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.symbol: test_tensor_cfg_live_scc.kd
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.sgpr_count: 12
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.vgpr_count: 1
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.kernarg_segment_size: 0
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.group_segment_fixed_size: 0
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.private_segment_fixed_size: 0
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.kernarg_segment_align: 8
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.wavefront_size: 64
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.max_flat_workgroup_size: 256
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.end_amdgpu_metadata
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