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David Malcolm 4f40164a93 analyzer: fix ICE on failed casts [PR 93777]
PR analyzer/93777 reports ICEs in a Fortran and C++ case involving
a cast of a NULL pointer to a REFERENCE_TYPE.

In both cases the call to build_cast fails and returns a NULL type, but
region_model::maybe_cast_1 asserts that a non-NULL type was returned.

This patch fixes the ICEs by converting the assertion to a conditional.

gcc/analyzer/ChangeLog:
	PR analyzer/93777
	* region-model.cc (region_model::maybe_cast_1): Replace assertion
	that build_cast returns non-NULL with a conditional, falling
	through to the logic which returns a new unknown value of the
	desired type if it fails.

gcc/testsuite/ChangeLog:
	PR analyzer/93777
	* g++.dg/analyzer/pr93777.C: New test.
	* gfortran.dg/analyzer/pr93777.f90: New test.
2020-02-18 08:17:43 -05:00
config Use a non-empty test program to test ability to link. 2020-02-12 13:22:07 -08:00
contrib contrib: Change 'remote' for personal branches and add branch creation script 2020-01-24 14:38:16 +00:00
fixincludes rs6000: fixinc: Skip machine_name fix for powerpc*-*-linux* 2020-02-14 00:00:33 +00:00
gcc analyzer: fix ICE on failed casts [PR 93777] 2020-02-18 08:17:43 -05:00
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ChangeLog Document compatibility of aliases and their targets, correct weakref example. 2020-02-14 17:13:29 -07:00
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configure configure.ac: Factor out common cases for compare_exclusions. 2019-12-11 20:59:35 +00:00
configure.ac configure.ac: Factor out common cases for compare_exclusions. 2019-12-11 20:59:35 +00:00
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MAINTAINERS MAINTAINERS: Update my email address. 2020-01-13 22:10:14 +03:00
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