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| author | Richard Biener <rguenther@suse.de> | 2016-10-04 13:39:22 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-10-04 13:39:22 +0000 |
| commit | 2b5688997f2bfc90fa512f0bb2d010bf8d7a85b6 (patch) | |
| tree | 12057e6e0c200c7e29f4cef0185ad8e4ef681b0a /gcc/explow.c | |
| parent | d96a55858cbdf50f70a7440906ff67f8936c4f08 (diff) | |
| download | gcc-2b5688997f2bfc90fa512f0bb2d010bf8d7a85b6.zip gcc-2b5688997f2bfc90fa512f0bb2d010bf8d7a85b6.tar.gz gcc-2b5688997f2bfc90fa512f0bb2d010bf8d7a85b6.tar.bz2 | |
re PR target/77833 (ICE: in plus_constant, at explow.c:87 with -O -mavx512f)
2016-10-04 Richard Biener <rguenther@suse.de>
PR middle-end/77833
* explow.c (plus_constant): Verify the mode of the constant
pool offset before calling plus_constant.
* gcc.target/i386/pr77833.c: New testcase.
From-SVN: r240743
Diffstat (limited to 'gcc/explow.c')
| -rw-r--r-- | gcc/explow.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/gcc/explow.c b/gcc/explow.c index 8dcef8b..d8f9dd2 100644 --- a/gcc/explow.c +++ b/gcc/explow.c @@ -114,12 +114,15 @@ plus_constant (machine_mode mode, rtx x, HOST_WIDE_INT c, cst = gen_lowpart (mode, cst); gcc_assert (cst); } - tem = plus_constant (mode, cst, c); - tem = force_const_mem (GET_MODE (x), tem); - /* Targets may disallow some constants in the constant pool, thus - force_const_mem may return NULL_RTX. */ - if (tem && memory_address_p (GET_MODE (tem), XEXP (tem, 0))) - return tem; + if (GET_MODE (cst) == VOIDmode || GET_MODE (cst) == mode) + { + tem = plus_constant (mode, cst, c); + tem = force_const_mem (GET_MODE (x), tem); + /* Targets may disallow some constants in the constant pool, thus + force_const_mem may return NULL_RTX. */ + if (tem && memory_address_p (GET_MODE (tem), XEXP (tem, 0))) + return tem; + } } break; |