diff options
| author | Richard Biener <rguenther@suse.de> | 2023-06-23 10:01:38 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2023-06-26 13:02:35 +0200 |
| commit | 5b3d421be747386349981c6291f0af1756b1112c (patch) | |
| tree | 78f334048be3fdf3afc1c691d8a1d00d6ccbf1b7 | |
| parent | c3bdee86183b3d84f269e9775b2603f8f8221417 (diff) | |
| download | gcc-5b3d421be747386349981c6291f0af1756b1112c.zip gcc-5b3d421be747386349981c6291f0af1756b1112c.tar.gz gcc-5b3d421be747386349981c6291f0af1756b1112c.tar.bz2 | |
Avoid shorten_binary_op on VECTOR_TYPE
When we disallow TYPE_PRECISION on VECTOR_TYPEs it shows that
shorten_binary_op performs some checks on that that are likely
harmless in the end. The following bails out early for
VECTOR_TYPE operations to avoid those questionable checks.
gcc/c-family/
* c-common.cc (shorten_binary_op): Exit early for VECTOR_TYPE
operations.
| -rw-r--r-- | gcc/c-family/c-common.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/c-family/c-common.cc b/gcc/c-family/c-common.cc index 9c8eed5..34566a3 100644 --- a/gcc/c-family/c-common.cc +++ b/gcc/c-family/c-common.cc @@ -1338,6 +1338,10 @@ shorten_binary_op (tree result_type, tree op0, tree op1, bool bitwise) int uns; tree type; + /* Do not shorten vector operations. */ + if (VECTOR_TYPE_P (result_type)) + return result_type; + /* Cast OP0 and OP1 to RESULT_TYPE. Doing so prevents excessive narrowing when we call get_narrower below. For example, suppose that OP0 is of unsigned int extended |