6db04b97e6
Depends on D112160 This adds the new options `--call-graph-profile-sort` (default), `--no-call-graph-profile-sort` and `--print-symbol-order=`. If call graph profile sorting is enabled, reads `__LLVM,__cg_profile` sections from object files and uses the resulting graph to put callees and callers close to each other in the final binary via the C3 clustering heuristic. Differential Revision: https://reviews.llvm.org/D112164
43 lines
821 B
ArmAsm
43 lines
821 B
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-apple-darwin %s -o %t.o
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# RUN: %lld -lSystem -e A -o %t.out %t.o
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# RUN: llvm-nm --numeric-sort %t.out | FileCheck %s
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# RUN: %lld --no-call-graph-profile-sort -lSystem -e A -o %t.out %t.o
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# RUN: llvm-nm --numeric-sort %t.out | FileCheck %s --check-prefix=NO-CG
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.text
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D:
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retq
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.globl C
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C:
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retq
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.globl B
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B:
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retq
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.globl A
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A:
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Aa:
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retq
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.subsections_via_symbols
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.cg_profile A, B, 10
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.cg_profile A, B, 10
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.cg_profile Aa, B, 80
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.cg_profile A, C, 40
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.cg_profile B, C, 30
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.cg_profile C, D, 90
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# CHECK: 00000001000002c8 T A
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# CHECK: 00000001000002c9 T B
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# CHECK: 00000001000002ca T C
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# CHECK: 00000001000002cb t D
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# NO-CG: 00000001000002c8 t D
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# NO-CG: 00000001000002c9 T C
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# NO-CG: 00000001000002ca T B
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# NO-CG: 00000001000002cb T A
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