derek.holloway
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46 lines
1.7 KiB
ArmAsm
46 lines
1.7 KiB
ArmAsm
// Test K-split src2 = FP inline immediate (e.g. `1.0`). Must be preserved
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// through the printer round-trip rather than reformatted as itostr() --
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// `1.0` and integer `1` encode at distinct VOP3P inline-const slots
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// (242 vs 1 per the AMDGPU ISA), so emitting `1` would change the
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// instruction.
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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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// RUN: %llvm-objdump -d %t.out.elf | %FileCheck --check-prefix=DISASM %s
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.amdgcn_target "amdgcn-amd-amdhsa--gfx1250"
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// COM: Source: K=128 opcode replaced by s_branch into trampoline.
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// DISASM-LABEL: <kernel>:
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// DISASM-NOT: v_wmma_f32_16x16x128_fp8_fp8
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// DISASM: s_branch
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// DISASM: s_endpgm
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// COM: First half preserves the FP imm `1.0` verbatim (printer round-trip).
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// COM: Second half's src2 becomes the dst register (carry).
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// COM: Operand-shape note: src0/src1 disjoint from dst per @earlyclobber $vdst.
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// DISASM: v_wmma_f32_16x16x64_fp8_fp8 v[32:39], v[0:7], v[16:23], 1.0
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// DISASM-NEXT: v_wmma_f32_16x16x64_fp8_fp8 v[32:39], v[8:15], v[24:31], v[32:39]
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// DISASM-NEXT: s_branch
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.globl kernel
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.p2align 8
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.type kernel,@function
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kernel:
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v_wmma_f32_16x16x128_fp8_fp8 v[32:39], v[0:15], v[16:31], 1.0
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s_endpgm
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.size kernel, .-kernel
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// Idempotency.
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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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