53005fd435
This PR implements the emitting of the post-link CFG information in PGO analysis map, as explained in the [RFC](https://discourse.llvm.org/t/rfc-extending-the-pgo-analysis-map-with-propeller-cfg-frequencies/88617). This is enabled by a flag `pgo-analysis-map-emit-bb-sections-cfg`. This PR bumps the SHT_LLVM_BB_ADDR_MAP version to 5. Also includes some refactoring changes related to storing the CFG in the Basic block sections profile reader.
26 lines
791 B
LLVM
26 lines
791 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 5 # version
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; BASIC-NEXT: .short 0 # feature
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; PGO-NEXT: .short 3 # feature
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; CHECK-NEXT: .quad .Lfunc_begin1 # function address
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