derek.holloway
7502bf64a4
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107 lines
3.1 KiB
ArmAsm
107 lines
3.1 KiB
ArmAsm
// COM: A far source and trampoline can be connected entirely with short
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// COM: branches through safe alignment holes. Each hop preserves SCC and the
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// COM: trampoline return uses the accepted SGPR-backed set-PC sequence.
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// RUN: %clang -target amdgcn-amd-amdhsa -mcpu=gfx1250 -nostdlib %s -o %t.elf
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// RUN: 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 | %FileCheck --check-prefix=API %s
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// API: RESULT: SUCCESS
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// COM: Exercise the large-object planning path with verbose accounting. This
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// COM: fixture contains more than 250 KiB of text and requires a deterministic
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// COM: forward branch-island chain.
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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.scale.elf 2>&1 | %FileCheck --check-prefix=SCALE %s
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// SCALE: hotswap: assigned 1 forward s_branch island chain(s)
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// SCALE: hotswap: applied 1 instruction patches
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// SCALE: hotswap: growWithTrampolines: appended 1 trampoline
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// RUN: hotswap-rewrite %t.scale.elf \
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// RUN: amdgcn-amd-amdhsa--gfx1250 amdgcn-amd-amdhsa--gfx1250 \
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// RUN: --check-idempotent | %FileCheck --check-prefix=SCALE-IDEM %s
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// SCALE-IDEM: IDEMPOTENT: YES
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// RUN: %llvm-objdump -d %t.out.elf | %FileCheck --check-prefix=DISASM \
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// RUN: --implicit-check-not=s_add_pc_i64 %s
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// DISASM-LABEL: <test_branch_islands>:
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// DISASM-NEXT: s_delay_alu
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// DISASM-NEXT: s_branch
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// DISASM-LABEL: <gateway_0>:
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// DISASM-NEXT: s_endpgm
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// DISASM-NEXT: s_branch
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// DISASM-LABEL: <gateway_1>:
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// DISASM-NEXT: s_endpgm
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// DISASM-NEXT: s_branch
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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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// DISASM-NEXT: s_get_pc_i64 s[14:15]
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// DISASM-NEXT: s_add_nc_u64 s[14:15], s[14:15],
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// DISASM-NEXT: s_set_pc_i64 s[14:15]
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// RUN: hotswap-rewrite %t.out.elf \
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// RUN: amdgcn-amd-amdhsa--gfx1250 amdgcn-amd-amdhsa--gfx1250 \
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// RUN: --check-idempotent | %FileCheck --check-prefix=IDEM %s
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// IDEM: IDEMPOTENT: YES
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.amdgcn_target "amdgcn-amd-amdhsa--gfx1250"
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.text
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.globl test_branch_islands
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.p2align 8
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.type test_branch_islands,@function
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test_branch_islands:
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s_delay_alu instid0(SALU_CYCLE_1)
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tensor_load_to_lds s[0:3], s[4:11]
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s_endpgm
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.size test_branch_islands, .-test_branch_islands
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.rept 25000
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s_mov_b32 s0, s1
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.endr
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.type gateway_0,@function
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gateway_0:
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s_endpgm
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.size gateway_0, .-gateway_0
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.fill 4, 1, 0
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.rept 25000
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s_mov_b32 s0, s1
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.endr
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.type gateway_1,@function
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gateway_1:
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s_endpgm
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.size gateway_1, .-gateway_1
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.fill 4, 1, 0
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.rept 15000
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s_mov_b32 s0, s1
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.endr
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.rodata
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.p2align 8
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.amdhsa_kernel test_branch_islands
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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_branch_islands
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.symbol: test_branch_islands.kd
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.sgpr_count: 14
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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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