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| author | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-08-08 13:39:33 +0000 |
|---|---|---|
| committer | hjl <hjl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-08-08 13:39:33 +0000 |
| commit | 44f67683401d7c457b3fd2e145cd0ae6fdb8ca20 (patch) | |
| tree | 5a809c37df1938d156b3f35a25564342c3c68d22 /gcc/combine.c | |
| parent | 41bc572755ec5eb8283063bdbd8fa7a8d81a6497 (diff) | |
| download | gcc-44f67683401d7c457b3fd2e145cd0ae6fdb8ca20.tar.gz | |
Don't return identity for CONST or symbolic reference
gcc/
PR rtl-optimization/54157
* combine.c (gen_lowpart_for_combine): Don't return identity
for CONST or symbolic reference.
gcc/testsuite/
PR rtl-optimization/54157
* gcc.target/i386/pr54157.c: New file.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@190228 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 495e1297e93..2b91eb9ccb3 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -10634,13 +10634,6 @@ gen_lowpart_for_combine (enum machine_mode omode, rtx x) if (omode == imode) return x; - /* Return identity if this is a CONST or symbolic reference. */ - if (omode == Pmode - && (GET_CODE (x) == CONST - || GET_CODE (x) == SYMBOL_REF - || GET_CODE (x) == LABEL_REF)) - return x; - /* We can only support MODE being wider than a word if X is a constant integer or has a mode the same size. */ if (GET_MODE_SIZE (omode) > UNITS_PER_WORD |