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cf322e810a
Object FIle Representation At codegen time this is emitted into the ELF file a pair of symbol indices and a weight. In assembly it looks like: .cg_profile a, b, 32 .cg_profile freq, a, 11 .cg_profile freq, b, 20 When writing an ELF file these are put into a SHT_LLVM_CALL_GRAPH_PROFILE (0x6fff4c02) section as (uint32_t, uint32_t, uint64_t) tuples as (from symbol index, to symbol index, weight). Differential Revision: https://reviews.llvm.org/D44965 llvm-svn: 333823
100 lines
2.5 KiB
ArmAsm
100 lines
2.5 KiB
ArmAsm
# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -s -t -sd -elf-cg-profile | FileCheck %s
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.section .test,"aw",@progbits
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a: .word b
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.cg_profile a, b, 32
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.cg_profile freq, a, 11
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.cg_profile late, late2, 20
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.cg_profile .L.local, b, 42
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.globl late
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late:
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late2: .word 0
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late3:
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.L.local:
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# CHECK: Name: .llvm.call-graph-profile
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# CHECK-NEXT: Type: SHT_LLVM_CALL_GRAPH_PROFILE (0x6FFF4C02)
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# CHECK-NEXT: Flags [ (0x80000000)
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# CHECK-NEXT: SHF_EXCLUDE (0x80000000)
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# CHECK-NEXT: ]
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# CHECK-NEXT: Address:
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# CHECK-NEXT: Offset:
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# CHECK-NEXT: Size: 64
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# CHECK-NEXT: Link: 6
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# CHECK-NEXT: Info: 0
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# CHECK-NEXT: AddressAlignment: 1
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# CHECK-NEXT: EntrySize: 16
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# CHECK-NEXT: SectionData (
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# CHECK-NEXT: 0000: 01000000 05000000 20000000 00000000
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# CHECK-NEXT: 0010: 06000000 01000000 0B000000 00000000
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# CHECK-NEXT: 0020: 07000000 02000000 14000000 00000000
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# CHECK-NEXT: 0030: 04000000 05000000 2A000000 00000000
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# CHECK-NEXT: )
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# CHECK: Symbols [
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# CHECK: Name: a
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# CHECK-NEXT: Value:
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# CHECK-NEXT: Size:
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# CHECK-NEXT: Binding: Local
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# CHECK-NEXT: Type:
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# CHECK-NEXT: Other:
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# CHECK-NEXT: Section: .test
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# CHECK: Name: late2
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# CHECK-NEXT: Value:
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# CHECK-NEXT: Size:
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# CHECK-NEXT: Binding: Local
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# CHECK-NEXT: Type:
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# CHECK-NEXT: Other:
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# CHECK-NEXT: Section: .test
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# CHECK: Name: late3
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# CHECK-NEXT: Value:
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# CHECK-NEXT: Size:
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# CHECK-NEXT: Binding: Local
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# CHECK-NEXT: Type:
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# CHECK-NEXT: Other:
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# CHECK-NEXT: Section: .test
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# CHECK: Name: b
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# CHECK-NEXT: Value:
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# CHECK-NEXT: Size:
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# CHECK-NEXT: Binding: Global
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# CHECK-NEXT: Type:
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# CHECK-NEXT: Other:
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# CHECK-NEXT: Section: Undefined
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# CHECK: Name: freq
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# CHECK-NEXT: Value:
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# CHECK-NEXT: Size:
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# CHECK-NEXT: Binding: Weak
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# CHECK-NEXT: Type:
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# CHECK-NEXT: Other:
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# CHECK-NEXT: Section: Undefined
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# CHECK: Name: late
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# CHECK-NEXT: Value:
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# CHECK-NEXT: Size:
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# CHECK-NEXT: Binding: Global
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# CHECK-NEXT: Type:
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# CHECK-NEXT: Other:
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# CHECK-NEXT: Section: .test
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# CHECK: CGProfile [
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# CHECK-NEXT: CGProfileEntry {
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# CHECK-NEXT: From: a
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# CHECK-NEXT: To: b
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# CHECK-NEXT: Weight: 32
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# CHECK-NEXT: }
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# CHECK-NEXT: CGProfileEntry {
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# CHECK-NEXT: From: freq
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# CHECK-NEXT: To: a
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# CHECK-NEXT: Weight: 11
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# CHECK-NEXT: }
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# CHECK-NEXT: CGProfileEntry {
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# CHECK-NEXT: From: late
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# CHECK-NEXT: To: late2
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# CHECK-NEXT: Weight: 20
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# CHECK-NEXT: }
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# CHECK-NEXT: CGProfileEntry {
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# CHECK-NEXT: From:
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# CHECK-NEXT: To: b
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# CHECK-NEXT: Weight: 42
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# CHECK-NEXT: }
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# CHECK-NEXT: ] |