138202a8c3
Two things in this diff: 1) Warn on the invalid range, currently three types of checking, see the detailed message in the code. 2) In some situation, llvm-profgen gives lots of warnings on the truncated stacks which is noisy. This change provides a switch to `--show-detailed-warning` to skip the warnings. Alternatively, we use a summary for those warning and show the percentage of cases with those issues. Example of warning summary. ``` warning: 0.05%(1120/2428958) cases with issue: Profile context truncated due to missing probe for call instruction. warning: 0.00%(2/178637) cases with issue: Range does not belong to any functions, likely from external function. ``` Reviewed By: hoy Differential Revision: https://reviews.llvm.org/D111902
5 lines
343 B
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5 lines
343 B
Plaintext
; REQUIRES: x86_64-linux
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; RUN: llvm-profgen --format=text --perfscript=%S/Inputs/cs-invalid-ret-addr.perfscript --binary=%S/Inputs/noinline-cs-noprobe.perfbin --output=%t --show-detailed-warning 2>&1 | FileCheck %s
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; CHECK: warning: Truncated stack sample due to invalid return address at 0x400686, likely caused by frame pointer omission
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