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>
42 lines
1.6 KiB
LLVM
42 lines
1.6 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64 -function-sections -basic-block-address-map | FileCheck %s
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$_Z4fooTIiET_v = comdat any
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define dso_local i32 @_Z3barv() {
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ret i32 0
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}
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;; Check we add SHF_LINK_ORDER for .llvm_bb_addr_map and link it with the corresponding .text sections.
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; CHECK: .section .text._Z3barv,"ax",@progbits
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; CHECK-LABEL: _Z3barv:
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; CHECK-NEXT: [[BAR_BEGIN:.Lfunc_begin[0-9]+]]:
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; CHECK: .section .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text._Z3barv{{$}}
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; CHECK-NEXT: .byte 4 # version
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; CHECK-NEXT: .byte 0 # feature
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; CHECK-NEXT: .quad [[BAR_BEGIN]] # function address
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define dso_local i32 @_Z3foov() {
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%1 = call i32 @_Z4fooTIiET_v()
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ret i32 %1
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}
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; CHECK: .section .text._Z3foov,"ax",@progbits
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; CHECK-LABEL: _Z3foov:
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; CHECK-NEXT: [[FOO_BEGIN:.Lfunc_begin[0-9]+]]:
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; CHECK: .section .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text._Z3foov{{$}}
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; CHECK-NEXT: .byte 4 # version
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; CHECK-NEXT: .byte 32 # feature
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; CHECK-NEXT: .quad [[FOO_BEGIN]] # function address
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define linkonce_odr dso_local i32 @_Z4fooTIiET_v() comdat {
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ret i32 0
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}
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;; Check we add .llvm_bb_addr_map section to a COMDAT group with the corresponding .text section if such a COMDAT exists.
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; CHECK: .section .text._Z4fooTIiET_v,"axG",@progbits,_Z4fooTIiET_v,comdat
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; CHECK-LABEL: _Z4fooTIiET_v:
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; CHECK-NEXT: [[FOOCOMDAT_BEGIN:.Lfunc_begin[0-9]+]]:
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; CHECK: .section .llvm_bb_addr_map,"oG",@llvm_bb_addr_map,.text._Z4fooTIiET_v,_Z4fooTIiET_v,comdat{{$}}
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; CHECK-NEXT: .byte 4 # version
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; CHECK-NEXT: .byte 0 # feature
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; CHECK-NEXT: .quad [[FOOCOMDAT_BEGIN]] # function address
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