d8d80b659a
Adding Matching and Inference Functionality to Propeller. For detailed information, please refer to the following RFC: https://discourse.llvm.org/t/rfc-adding-matching-and-inference-functionality-to-propeller/86238. This is the second PR, which includes the calculation of basic block hashes and their emission to the ELF file. It is associated with the previous PR at https://github.com/llvm/llvm-project/pull/160706. co-authors: lifengxiang1025 [lifengxiang@kuaishou.com](mailto:lifengxiang@kuaishou.com); zcfh [wuminghui03@kuaishou.com](mailto:wuminghui03@kuaishou.com) Co-authored-by: lifengxiang1025 <lifengxiang@kuaishou.com> Co-authored-by: zcfh <wuminghui03@kuaishou.com> Co-authored-by: Rahman Lavaee <rahmanl@google.com>
26 lines
788 B
LLVM
26 lines
788 B
LLVM
;; Verify that the BB address map is not emitted for empty functions.
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; RUN: llc < %s -mtriple=x86_64 -basic-block-address-map | FileCheck %s --check-prefixes=CHECK,BASIC
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; RUN: llc < %s -mtriple=x86_64 -basic-block-address-map -pgo-analysis-map=func-entry-count,bb-freq | FileCheck %s --check-prefixes=CHECK,PGO
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define void @empty_func() {
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entry:
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unreachable
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}
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; CHECK: {{^ *}}.text{{$}}
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; CHECK: empty_func:
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; CHECK: .Lfunc_begin0:
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; CHECK-NOT: .section .llvm_bb_addr_map
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define void @func() {
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entry:
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ret void
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}
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; CHECK: func:
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; CHECK: .Lfunc_begin1:
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; CHECK: .section .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text{{$}}
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; CHECK-NEXT: .byte 4 # version
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; BASIC-NEXT: .byte 0 # feature
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; PGO-NEXT: .byte 3 # feature
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; CHECK-NEXT: .quad .Lfunc_begin1 # function address
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