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| author | Richard Henderson <rth@redhat.com> | 2002-12-09 15:54:01 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2002-12-09 15:54:01 -0800 |
| commit | 3a04ff6433538b4cec71fe681ded309db4d91cab (patch) | |
| tree | 57341f6e2c1ac600113f5797665b9c84f0d000d3 /gcc/varasm.c | |
| parent | a9a4005fca1d4a58133419bc33c89a62fe534cbb (diff) | |
| download | gcc-3a04ff6433538b4cec71fe681ded309db4d91cab.zip gcc-3a04ff6433538b4cec71fe681ded309db4d91cab.tar.gz gcc-3a04ff6433538b4cec71fe681ded309db4d91cab.tar.bz2 | |
target.h (gcc_target): Add cannot_force_const_mem.
* target.h (gcc_target): Add cannot_force_const_mem.
* target-def.h (TARGET_CANNOT_FORCE_CONST_MEM): New.
(TARGET_INITIALIZER): Add it.
* varasm.c (force_const_mem): Fail if cannot_force_const_mem.
* expr.c (emit_move_insn): Be prepared for force_const_mem to fail.
* reload1.c (reload): Likewise.
* hooks.c (hook_bool_rtx_false): New.
* hooks.h: Declare it.
* config/i386/i386.c (ix86_cannot_force_const_mem): New.
(TARGET_CANNOT_FORCE_CONST_MEM): New.
(ix86_expand_move): Remove de-const-pooling hack.
* gcc.dg/tls/opt-4.c: New.
From-SVN: r59971
Diffstat (limited to 'gcc/varasm.c')
| -rw-r--r-- | gcc/varasm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/varasm.c b/gcc/varasm.c index 2ac3da5..f8b33d0 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -3209,6 +3209,10 @@ force_const_mem (mode, x) struct pool_constant *pool; unsigned int align; + /* If we're not allowed to drop X into the constant pool, don't. */ + if ((*targetm.cannot_force_const_mem) (x)) + return NULL_RTX; + /* Compute hash code of X. Search the descriptors for that hash code to see if any of them describes X. If yes, we have an rtx to use. */ hash = const_hash_rtx (mode, x); |