derek.holloway
7502bf64a4
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89 lines
2.8 KiB
ArmAsm
89 lines
2.8 KiB
ArmAsm
// COM: A local return helper is not call-only when a GLOBAL PROTECTED kernel
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// COM: alias and kernel descriptor expose the same entry. Kernel dispatch
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// COM: does not define the helper's link pair, so the rewrite must fail closed.
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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: --expect-status ERROR 2>&1 \
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// RUN: | %FileCheck --check-prefixes=LOG,API %s
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// LOG: hotswap: s_set_pc_i64 at 0x4 is not a bounded return: externally reachable entry at 0x0 overlaps the local function
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// LOG: hotswap: unresolved call target
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// LOG: hotswap: unresolved control-flow target disables NOP-sled emission,
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// LOG-SAME: trampoline coalescing, source relocation, and .text gateways
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// LOG: hotswap: error: no safe short-branch gateway for far site
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// API: RESULT: ERROR
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.amdgcn_target "amdgcn-amd-amdhsa--gfx1250"
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.text
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.type local_return_helper,@function
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.globl aliased_return_kernel
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.protected aliased_return_kernel
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.type aliased_return_kernel,@function
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local_return_helper:
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aliased_return_kernel:
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s_nop 0
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s_set_pc_i64 s[0:1]
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.Laliased_return_end:
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.size local_return_helper, .Laliased_return_end-local_return_helper
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.size aliased_return_kernel, .Laliased_return_end-aliased_return_kernel
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.globl test_pc_materialized_external_alias
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.p2align 8
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.type test_pc_materialized_external_alias,@function
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test_pc_materialized_external_alias:
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s_get_pc_i64 s[4:5]
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s_add_nc_u64 s[4:5], s[4:5], -260
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s_swap_pc_i64 s[0:1], s[4:5]
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ds_load_2addr_stride64_b64 v[0:3], v4 offset0:1 offset1:2
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s_wait_dscnt 0x0
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s_endpgm
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.Ltest_pc_materialized_external_alias_end:
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.size test_pc_materialized_external_alias, .Ltest_pc_materialized_external_alias_end-test_pc_materialized_external_alias
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.fill 64, 1, 0
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.rept 40000
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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 aliased_return_kernel
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.amdhsa_next_free_vgpr 0
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.amdhsa_next_free_sgpr 2
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.end_amdhsa_kernel
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.p2align 8
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.amdhsa_kernel test_pc_materialized_external_alias
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.amdhsa_next_free_vgpr 5
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.amdhsa_next_free_sgpr 6
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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: aliased_return_kernel
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.symbol: aliased_return_kernel.kd
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.sgpr_count: 2
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.vgpr_count: 0
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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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- .name: test_pc_materialized_external_alias
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.symbol: test_pc_materialized_external_alias.kd
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.sgpr_count: 6
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.vgpr_count: 5
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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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