honggyu.kim added a comment.
In https://reviews.llvm.org/D22666#506884, @compnerd wrote:
> The `\01` is to prevent the mangler from touching the function name. If you
> noticed the check tags in the quoted test, some targets expect it to be
> decorated and others do not. What exactly do you mean that `lit` has a
> strings matching with `\01`? Its not a string `\01`, its the octal character
> 1.
Thanks for the explanation. I mean the following statement is not properly
matched by llvm-lit even if frontend generate mcount name as
"\01__gnu_mcount_nc".
// CHECK-ARM-EABI-MEABI-GNU: attributes #{{[0-9]+}} = {
{{.*}}"counting-function"="\01__gnu_mcount_nc"{{.*}} }
If I remove '\01' prefix in frontend then generate just "__gnu_mcount_nc", the
following statement that also doesn't have '\01' prefix is matched without
problem.
// CHECK-ARM-EABI-MEABI-GNU: attributes #{{[0-9]+}} = {
{{.*}}"counting-function"="__gnu_mcount_nc"{{.*}} }
Do you have any idea why this problem happens?
https://reviews.llvm.org/D22666
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