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| author | Andreas Krebbel <krebbel@linux.vnet.ibm.com> | 2016-07-06 07:05:11 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2016-07-06 07:05:11 +0000 |
| commit | a07189f4555b29f44945e548461ef26246a917f2 (patch) | |
| tree | 4ce928c72b6002b2185dd631e970595770f79e8a /gcc/config/s390 | |
| parent | 8070763a2cd6d84f8614890a9a7bfae57b44c047 (diff) | |
| download | gcc-a07189f4555b29f44945e548461ef26246a917f2.zip gcc-a07189f4555b29f44945e548461ef26246a917f2.tar.gz gcc-a07189f4555b29f44945e548461ef26246a917f2.tar.bz2 | |
S/390: Fix vecinit expansion.
The fallback routine in the S/390 vecinit expander did not check
whether each of the initializer elements is a proper general_operand.
Since revision r236582 the expander is invoked also with e.g. symbol
refs with an odd addend resulting in invalid insns.
Fixed by forcing the element into a register in such cases.
gcc/ChangeLog:
2016-07-06 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* config/s390/s390.c (s390_expand_vec_init): Force initializer
element to register if it doesn't match general_operand.
From-SVN: r238032
Diffstat (limited to 'gcc/config/s390')
| -rw-r--r-- | gcc/config/s390/s390.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index ee0187c6..9d2b2c0 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -6443,11 +6443,17 @@ s390_expand_vec_init (rtx target, rtx vals) /* Unfortunately the vec_init expander is not allowed to fail. So we have to implement the fallback ourselves. */ for (i = 0; i < n_elts; i++) - emit_insn (gen_rtx_SET (target, - gen_rtx_UNSPEC (mode, - gen_rtvec (3, XVECEXP (vals, 0, i), - GEN_INT (i), target), - UNSPEC_VEC_SET))); + { + rtx elem = XVECEXP (vals, 0, i); + if (!general_operand (elem, GET_MODE (elem))) + elem = force_reg (inner_mode, elem); + + emit_insn (gen_rtx_SET (target, + gen_rtx_UNSPEC (mode, + gen_rtvec (3, elem, + GEN_INT (i), target), + UNSPEC_VEC_SET))); + } } /* Structure to hold the initial parameters for a compare_and_swap operation |