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| author | Bill Schmidt <wschmidt@linux.vnet.ibm.com> | 2017-01-12 16:01:13 +0000 |
|---|---|---|
| committer | William Schmidt <wschmidt@gcc.gnu.org> | 2017-01-12 16:01:13 +0000 |
| commit | 661131664980c54b72c6223a53a464f23b8ec0a3 (patch) | |
| tree | 55da712110b42b89723181d93c414e14d5e20509 /gcc/config | |
| parent | 4e41b0e67f203cc1249e34a25f4e65d154435163 (diff) | |
| download | gcc-661131664980c54b72c6223a53a464f23b8ec0a3.zip gcc-661131664980c54b72c6223a53a464f23b8ec0a3.tar.gz gcc-661131664980c54b72c6223a53a464f23b8ec0a3.tar.bz2 | |
re PR target/79044 (ICE in insn_is_swappable_p, at config/rs6000/rs6000.c:41191)
[gcc]
2017-01-12 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/79044
* config/rs6000/rs6000.c (insn_is_swappable_p): Mark
element-reversing loads and stores as not swappable.
[gcc/testsuite]
2017-01-12 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR target/79044
* gcc.target/powerpc/swaps-p8-26.c: New.
From-SVN: r244368
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 02b521c..5909e27 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -41344,7 +41344,10 @@ insn_is_swappable_p (swap_web_entry *insn_entry, rtx insn, if (GET_CODE (body) == SET) { rtx rhs = SET_SRC (body); - gcc_assert (GET_CODE (rhs) == MEM); + /* Even without a swap, the RHS might be a vec_select for, say, + a byte-reversing load. */ + if (GET_CODE (rhs) != MEM) + return 0; if (GET_CODE (XEXP (rhs, 0)) == AND) return 0; @@ -41361,7 +41364,10 @@ insn_is_swappable_p (swap_web_entry *insn_entry, rtx insn, && GET_CODE (SET_SRC (body)) != UNSPEC) { rtx lhs = SET_DEST (body); - gcc_assert (GET_CODE (lhs) == MEM); + /* Even without a swap, the LHS might be a vec_select for, say, + a byte-reversing store. */ + if (GET_CODE (lhs) != MEM) + return 0; if (GET_CODE (XEXP (lhs, 0)) == AND) return 0; |