7f9868f9b7
Summary: In emitting metadata for implicit kernel arguments, we need to be in sync with the actual loads to align the implicit kernel argument segment to 8 byte boundary. In this work, we simply force this alignment through the first implicit argument. In addition, we don't emit metadata for any implicit kernel argument if none of them is actually used. Reviewers: arsenm, b-sumner Differential Revision: https://reviews.llvm.org/D123346
59 lines
2.3 KiB
LLVM
59 lines
2.3 KiB
LLVM
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx906 --amdhsa-code-object-version=5 < %s | FileCheck --check-prefixes=CHECK %s
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; CHECK-LABEL: test_unaligned_to_eight:
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; CHECK: .amdhsa_kernarg_size 264
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define amdgpu_kernel void @test_unaligned_to_eight(i32 %four) {
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%implicitarg.ptr = call i8 addrspace(4)* @llvm.amdgcn.implicitarg.ptr()
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store volatile i8 addrspace(4)* %implicitarg.ptr, i8 addrspace(4)* addrspace(1)* undef
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ret void
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}
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; CHECK-LABEL: test_aligned_to_eight:
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; CHECK: .amdhsa_kernarg_size 264
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define amdgpu_kernel void @test_aligned_to_eight(i64 %eight) {
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%implicitarg.ptr = call i8 addrspace(4)* @llvm.amdgcn.implicitarg.ptr()
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store volatile i8 addrspace(4)* %implicitarg.ptr, i8 addrspace(4)* addrspace(1)* undef
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ret void
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}
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; CHECK-LABEL: amdhsa.kernels:
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; CHECK: - .args:
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; CHECK-NEXT: - .name: four
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; CHECK-NEXT: .offset: 0
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; CHECK-NEXT: .size: 4
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; CHECK-NEXT: .value_kind: by_value
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; CHECK-NEXT: - .offset: 8
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; CHECK-NEXT: .size: 4
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; CHECK-NEXT: .value_kind: hidden_block_count_x
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; CHECK-NEXT: - .offset: 12
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; CHECK-NEXT: .size: 4
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; CHECK-NEXT: .value_kind: hidden_block_count_y
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; CHECK-NEXT: - .offset: 16
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; CHECK-NEXT: .size: 4
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; CHECK-NEXT: .value_kind: hidden_block_count_z
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; CHECK: .kernarg_segment_align: 8
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; CHECK-NEXT: .kernarg_segment_size: 264
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; CHECK-LABEL: .name: test_unaligned_to_eight
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; CHECK: - .args:
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; CHECK-NEXT: - .name: eight
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; CHECK-NEXT: .offset: 0
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; CHECK-NEXT: .size: 8
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; CHECK-NEXT: .value_kind: by_value
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; CHECK-NEXT: - .offset: 8
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; CHECK-NEXT: .size: 4
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; CHECK-NEXT: .value_kind: hidden_block_count_x
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; CHECK-NEXT: - .offset: 12
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; CHECK-NEXT: .size: 4
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; CHECK-NEXT: .value_kind: hidden_block_count_y
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; CHECK-NEXT: - .offset: 16
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; CHECK-NEXT: .size: 4
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; CHECK-NEXT: .value_kind: hidden_block_count_z
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; CHECK: .kernarg_segment_align: 8
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; CHECK-NEXT: .kernarg_segment_size: 264
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; CHECK-LABEL: .name: test_aligned_to_eight
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declare i8 addrspace(4)* @llvm.amdgcn.implicitarg.ptr()
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