derek.holloway
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58 lines
2.1 KiB
ArmAsm
58 lines
2.1 KiB
ArmAsm
// COM: Passthrough test for the s_barrier_signal_isfirst -> s_barrier_signal
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// COM: in-place patch. A kernel that already uses the non-isfirst form must
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// COM: be left structurally unchanged: no isfirst should appear anywhere in
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// COM: the patched output, and the original s_barrier_signal sites must
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// COM: remain in place with their original operands.
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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 \
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// RUN: | %FileCheck --check-prefix=API %s
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// API: RESULT: SUCCESS
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// COM: Strict no-op verification: original layout preserved; isfirst variant
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// COM: never appears. CHECK-NOT covers both pre- and post-kernel ranges.
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// COM: Wait operands are shown by llvm-objdump as raw 16-bit hex (signed
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// COM: -1 = 0xffff, -3 = 0xfffd).
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// RUN: %llvm-objdump -d %t.out.elf | %FileCheck --check-prefix=DISASM %s
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// DISASM-NOT: s_barrier_signal_isfirst
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// DISASM: s_barrier_signal -1
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// DISASM-NEXT: s_barrier_wait 0xffff
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// DISASM-NEXT: s_barrier_signal -3
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// DISASM-NEXT: s_barrier_wait 0xfffd
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// DISASM-NEXT: s_endpgm
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// DISASM-NOT: s_barrier_signal_isfirst
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// COM: Idempotency: second rewrite must produce identical bytes.
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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: --output %t.out2.elf \
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// RUN: | %FileCheck --check-prefix=API2 %s
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// API2: RESULT: SUCCESS
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// RUN: cmp %t.out.elf %t.out2.elf
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.amdgcn_target "amdgcn-amd-amdhsa--gfx1250"
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.text
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.globl test_barrier_no_isfirst
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.p2align 8
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.type test_barrier_no_isfirst,@function
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test_barrier_no_isfirst:
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// Workgroup barrier (-1) and a user cluster barrier (-3); neither uses
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// the isfirst form, so the patch must leave both unchanged.
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s_barrier_signal -1
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s_barrier_wait -1
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s_barrier_signal -3
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s_barrier_wait -3
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s_endpgm
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.Ltest_barrier_no_isfirst_end:
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.size test_barrier_no_isfirst, .Ltest_barrier_no_isfirst_end-test_barrier_no_isfirst
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.rodata
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.p2align 8
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.amdhsa_kernel test_barrier_no_isfirst
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.amdhsa_next_free_vgpr 1
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.amdhsa_next_free_sgpr 2
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.end_amdhsa_kernel
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