derek.holloway
7502bf64a4
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71 lines
2.1 KiB
ArmAsm
71 lines
2.1 KiB
ArmAsm
// COM: A canonical PC-materialized call with one target outside .text has no
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// COM: local destination, but its continuation is a local entry. Proving both
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// COM: facts permits a far required rewrite to use the code-end gateway while
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// COM: preserving the external call's return point.
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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 2>&1 | %FileCheck --check-prefix=LOG %s
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// LOG: hotswap: resolved PC-materialized call
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// LOG-SAME: to finite external target
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// LOG-NOT: hotswap: unresolved call target
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// LOG: RESULT: SUCCESS
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// RUN: %llvm-objdump -d %t.out.elf \
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// RUN: | %FileCheck --check-prefix=DISASM %s
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// DISASM-LABEL: <finite_external_call>:
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// DISASM: s_swap_pc_i64
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// DISASM-NEXT: s_branch
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// DISASM: ds_load_b32 v0, v2 offset:256
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// DISASM-NEXT: ds_load_b32 v1, v2 offset:768
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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 finite_external_call
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.p2align 8
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.type finite_external_call,@function
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finite_external_call:
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.Lgetpc:
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s_get_pc_i64 s[2:3]
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s_add_nc_u64 s[2:3], s[2:3], 0x100000000
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s_swap_pc_i64 s[6:7], s[2:3]
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ds_load_2addr_stride64_b32 v[0:1], v2 offset0:1 offset1:3
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s_wait_dscnt 0x0
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s_endpgm
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.size finite_external_call, .-finite_external_call
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.fill 20, 1, 0
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.rept 40000
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s_mov_b32 s10, s11
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.endr
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.rodata
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.p2align 8
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.amdhsa_kernel finite_external_call
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.amdhsa_next_free_vgpr 3
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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: finite_external_call
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.symbol: finite_external_call.kd
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.sgpr_count: 12
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.vgpr_count: 3
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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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