derek.holloway
7502bf64a4
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70 lines
2.0 KiB
ArmAsm
70 lines
2.0 KiB
ArmAsm
// COM: s_swap_pc_i64 also accepts an absolute immediate target. Translate an
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// COM: address inside .text to a text-relative direct target so the second of
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// COM: two adjacent far patch sites retains an independently callable entry.
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// RUN: %clang -target amdgcn-amd-amdhsa -mcpu=gfx1250 -nostdlib \
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// RUN: -Wl,--section-start=.text=0x1000 %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 \
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// RUN: | %FileCheck --check-prefix=API %s
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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_absolute_call>:
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// DISASM-NEXT: s_swap_pc_i64 s[0:1], 0x1010
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// DISASM-NEXT: s_branch
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// DISASM-NEXT: s_nop 0
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// DISASM-NEXT: s_branch
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.amdgcn_target "amdgcn-amd-amdhsa--gfx1250"
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.text
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.globl test_absolute_call
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.p2align 8
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.type test_absolute_call,@function
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test_absolute_call:
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s_swap_pc_i64 s[0:1], 0x1010
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ds_load_2addr_stride64_b64 v[0:3], v4 offset0:1 offset1:2
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.Labsolute_target:
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ds_load_2addr_stride64_b64 v[4:7], v8 offset0:3 offset1:4
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s_wait_dscnt 0x0
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s_endpgm
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.Ltest_absolute_call_end:
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.size test_absolute_call, .Ltest_absolute_call_end-test_absolute_call
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// Two separate long sites need two 20-byte SCC-neutral gateways. This
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// padding follows s_endpgm and lies outside the function, so it is safe.
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.fill 64, 1, 0
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// Push the appended trampoline pool beyond s_branch's signed 16-bit dword
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// range and force direct-target-aware far-site handling.
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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 test_absolute_call
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.amdhsa_next_free_vgpr 9
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.amdhsa_next_free_sgpr 2
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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_absolute_call
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.symbol: test_absolute_call.kd
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.sgpr_count: 2
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.vgpr_count: 9
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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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