derek.holloway
7502bf64a4
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42 lines
1.5 KiB
ArmAsm
42 lines
1.5 KiB
ArmAsm
// A PC-materialized s_swap_pc_i64 that calls into the interior of another
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// function skips that function's s_set_vgpr_msb prefix. The VGPR-MSB analysis
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// must treat the callee as entered at a non-start offset and refuse to seed it
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// from the symbol start, so a mandatory WMMA split there fails closed instead
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// of bracketing for the wrong incoming mode.
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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:gfx1250-b0-specific+ \
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// RUN: amdgcn-amd-amdhsa--gfx1250:gfx1250-b0-specific- \
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// RUN: --strict-mode --output %t.out.elf --expect-status ERROR 2>&1 \
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// RUN: | %FileCheck %s
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// RUN: test ! -e %t.out.elf
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// CHECK-LABEL: WMMA split: cannot determine VGPR-MSB mode
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// CHECK: RESULT: ERROR
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.amdgcn_target "amdgcn-amd-amdhsa--gfx1250"
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.text
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.globl test_caller
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.p2align 8
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.type test_caller,@function
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test_caller:
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// Materialize the interior label of test_callee and call it. s_get_pc_i64
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// captures the address of the following instruction (.Lcaller_pc), so the
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// add displacement is (target - captured PC).
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s_get_pc_i64 s[4:5]
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.Lcaller_pc:
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s_add_nc_u64 s[4:5], s[4:5], .Lcallee_interior-.Lcaller_pc
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s_swap_pc_i64 s[0:1], s[4:5]
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s_endpgm
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.size test_caller, .-test_caller
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.globl test_callee
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.p2align 8
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.type test_callee,@function
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test_callee:
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s_set_vgpr_msb 0x60
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.Lcallee_interior:
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v_wmma_f32_16x16x128_fp8_fp8 v[32:39], v[0:15], v[16:31], 0
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s_endpgm
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.size test_callee, .-test_callee
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