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| author | Tom de Vries <tom@codesourcery.com> | 2013-01-15 17:24:55 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2013-01-15 17:24:55 +0000 |
| commit | a78a8cc4083cc10a6316f099a03a954e7468f835 (patch) | |
| tree | cc0cfe6c76b1e2daaa2ad1e877b17d21aff36a1e | |
| parent | 0e80383ffb72168e9609e2be58649ff641150677 (diff) | |
| download | gcc-a78a8cc4083cc10a6316f099a03a954e7468f835.tar.gz | |
re PR target/55876 (internal compiler error: in gen_rtx_SUBREG, at emit-rtl.c:776)
2013-01-15 Tom de Vries <tom@codesourcery.com>
PR target/55876
* optabs.c (widen_operand): Use gen_lowpart instead of gen_rtx_SUBREG.
Update comment.
From-SVN: r195212
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/optabs.c | 4 |
2 files changed, 8 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 75efa7a216d..d0efc8a0cae 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2013-01-15 Tom de Vries <tom@codesourcery.com> + + PR target/55876 + * optabs.c (widen_operand): Use gen_lowpart instead of gen_rtx_SUBREG. + Update comment. + 2013-01-15 Vladimir Makarov <vmakarov@redhat.com> PR rtl-optimization/pr55153 diff --git a/gcc/optabs.c b/gcc/optabs.c index 35b61c1ff00..e637a1e9caf 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -325,10 +325,10 @@ widen_operand (rtx op, enum machine_mode mode, enum machine_mode oldmode, && SUBREG_PROMOTED_UNSIGNED_P (op) == unsignedp)) return convert_modes (mode, oldmode, op, unsignedp); - /* If MODE is no wider than a single word, we return a paradoxical + /* If MODE is no wider than a single word, we return a lowpart or paradoxical SUBREG. */ if (GET_MODE_SIZE (mode) <= UNITS_PER_WORD) - return gen_rtx_SUBREG (mode, force_reg (GET_MODE (op), op), 0); + return gen_lowpart (mode, force_reg (GET_MODE (op), op)); /* Otherwise, get an object of MODE, clobber it, and set the low-order part to OP. */ |