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| author | Eric Botcazou <ebotcazou@adacore.com> | 2016-12-14 08:34:15 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2016-12-14 08:34:15 +0000 |
| commit | 164f063463d64a1575841d6735ba0298605c4626 (patch) | |
| tree | bfb574cb2d86464e1c68ee835b1cd19a067945b5 /gcc | |
| parent | 253c0172bb2c525b784355d75ac484b03fa7273b (diff) | |
| download | gcc-164f063463d64a1575841d6735ba0298605c4626.zip gcc-164f063463d64a1575841d6735ba0298605c4626.tar.gz gcc-164f063463d64a1575841d6735ba0298605c4626.tar.bz2 | |
lra-constraints.c (process_address_1): Do not attempt to decompose addresses for MEMs that satisfy fixed-form constraints.
* lra-constraints.c (process_address_1): Do not attempt to decompose
addresses for MEMs that satisfy fixed-form constraints.
From-SVN: r243632
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/lra-constraints.c | 6 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 17a3361..24c6672 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2016-12-14 Eric Botcazou <ebotcazou@adacore.com> + + * lra-constraints.c (process_address_1): Do not attempt to decompose + addresses for MEMs that satisfy fixed-form constraints. + 2016-12-14 Richard Biener <rguenther@suse.de> PR tree-optimization/78788 diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index e661aef..f7009ea 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -3080,7 +3080,11 @@ process_address_1 (int nop, bool check_only_p, if (insn_extra_address_constraint (cn)) decompose_lea_address (&ad, curr_id->operand_loc[nop]); - else if (MEM_P (op)) + /* Do not attempt to decompose arbitrary addresses generated by combine + for asm operands with loose constraints, e.g 'X'. */ + else if (MEM_P (op) + && !(get_constraint_type (cn) == CT_FIXED_FORM + && constraint_satisfied_p (op, cn))) decompose_mem_address (&ad, op); else if (GET_CODE (op) == SUBREG && MEM_P (SUBREG_REG (op))) |