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Work around array out of bounds warning in mkdeps 

This suppresses an array out of bounds warning in mkdeps.c as proposed
by Martin Sebor in the bugzilla.

array subscript 2 is outside array bounds of ‘const char [2]’

Since this warning does occur during bootstrap it currently breaks
werror builds on IBM Z.

The problem can be reproduced also on x86_64 by changing the inlining
threshold using: --param max-inline-insns-auto=80

Bootstrapped and regression tested on x86_64 and IBM Z.

libcpp/ChangeLog:

2020-01-16  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR tree-optimization/92176
	* mkdeps.c (deps_add_default_target): Avoid calling apply_vpath to
	suppress an array out of bounds warning.
This commit is contained in:
Andreas Krebbel 2020-01-16 10:41:44 +01:00
parent 5c06093ce9
commit 3b5757ea87
1 changed files with 1 additions and 1 deletions
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2
libcpp/mkdeps.c
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@ -268,7 +268,7 @@ deps_add_default_target (class mkdeps *d, const char *tgt)
return;
if (tgt[0] == '\0')
deps_add_target (d, "-", 1);
d->targets.push (xstrdup ("-"));
else
{
#ifndef TARGET_OBJECT_SUFFIX