]> git.ipfire.org Git - thirdparty/gcc.git/commit
tree-optimization/106934 - avoid BIT_FIELD_REF of bitfields
authorRichard Biener <rguenther@suse.de>
Wed, 14 Sep 2022 07:00:35 +0000 (09:00 +0200)
committerRichard Biener <rguenther@suse.de>
Wed, 14 Sep 2022 09:57:23 +0000 (11:57 +0200)
commit05f5c42cb42c5088187d44cc45a5f671d19ad8c5
tree95d7fd9c6372a386f4b648dfbb1daf3fdd5f1bda
parent93b09bf3246f413b8e469ebfd8ce43947c0073a6
tree-optimization/106934 - avoid BIT_FIELD_REF of bitfields

The following avoids creating BIT_FIELD_REF of bitfields in
update-address-taken.  The patch doesn't implement punning to
a full precision integer type but leaves a comment according to
that.

PR tree-optimization/106934
* tree-ssa.cc (non_rewritable_mem_ref_base): Avoid BIT_FIELD_REFs
of bitfields.
(maybe_rewrite_mem_ref_base): Likewise.

* gfortran.dg/pr106934.f90: New testcase.
gcc/testsuite/gfortran.dg/pr106934.f90 [new file with mode: 0644]
gcc/tree-ssa.cc