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| author | liuhongt <hongtao.liu@intel.com> | 2020-10-26 20:46:42 +0800 |
|---|---|---|
| committer | liuhongt <hongtao.liu@intel.com> | 2020-11-04 13:06:32 +0800 |
| commit | 2e0aa43fc6ae689c595902310baec604e7e0d695 (patch) | |
| tree | 31a62ed7fb7e9699e169f994db289b256d687411 /gcc/recog.c | |
| parent | db8b3e148d5cc5358cd48886e5334bd50d2d3317 (diff) | |
| download | gcc-2e0aa43fc6ae689c595902310baec604e7e0d695.zip gcc-2e0aa43fc6ae689c595902310baec604e7e0d695.tar.gz gcc-2e0aa43fc6ae689c595902310baec604e7e0d695.tar.bz2 | |
Don't extract memory from operand for normal memory constraint.
gcc/ChangeLog
PR target/97540
* ira.c: (ira_setup_alts): Extract memory from operand only
for special memory constraint.
* recog.c (asm_operand_ok): Ditto.
* lra-constraints.c (process_alt_operands): MEM_P is
required for normal memory constraint.
gcc/testsuite/ChangeLog
* gcc.target/i386/pr97540.c: New test.
Diffstat (limited to 'gcc/recog.c')
| -rw-r--r-- | gcc/recog.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/recog.c b/gcc/recog.c index 45a52e2..6d8b7d5 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -1794,6 +1794,7 @@ asm_operand_ok (rtx op, const char *constraint, const char **constraints) /* FALLTHRU */ default: cn = lookup_constraint (constraint); + rtx mem = NULL; switch (get_constraint_type (cn)) { case CT_REGISTER: @@ -1812,10 +1813,13 @@ asm_operand_ok (rtx op, const char *constraint, const char **constraints) break; case CT_MEMORY: + mem = op; + /* Fall through. */ case CT_SPECIAL_MEMORY: /* Every memory operand can be reloaded to fit. */ - result = result || memory_operand (extract_mem_from_operand (op), - VOIDmode); + if (!mem) + mem = extract_mem_from_operand (op); + result = result || memory_operand (mem, VOIDmode); break; case CT_ADDRESS: |