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| author | Steve Ellcey <sje@cup.hp.com> | 2003-04-10 19:53:54 +0000 |
|---|---|---|
| committer | Steve Ellcey <sje@gcc.gnu.org> | 2003-04-10 19:53:54 +0000 |
| commit | 08744705c05e5eac1407a340ea03d88f00d2cfbe (patch) | |
| tree | ed41c5efcbe4fe54012b732654ab0888a32b1052 /gcc/config | |
| parent | 267b28bd11e3d35397892c9e65e18f6b98d2532e (diff) | |
| download | gcc-08744705c05e5eac1407a340ea03d88f00d2cfbe.zip gcc-08744705c05e5eac1407a340ea03d88f00d2cfbe.tar.gz gcc-08744705c05e5eac1407a340ea03d88f00d2cfbe.tar.bz2 | |
ia64-protos.h (addp4_optimize_ok): New.
* ia64-protos.h (addp4_optimize_ok): New.
* ia64.c (addp4_optimize_ok): New.
* ia64.md (*ptr_extend_plus_1): Use addp4_optimize_ok.
(*ptr_extend_plus_2): Ditto.
From-SVN: r65435
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/ia64/ia64-protos.h | 1 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64.c | 16 | ||||
| -rw-r--r-- | gcc/config/ia64/ia64.md | 4 |
3 files changed, 19 insertions, 2 deletions
diff --git a/gcc/config/ia64/ia64-protos.h b/gcc/config/ia64/ia64-protos.h index 53630e6..baffb01 100644 --- a/gcc/config/ia64/ia64-protos.h +++ b/gcc/config/ia64/ia64-protos.h @@ -76,6 +76,7 @@ extern int basereg_operand PARAMS((rtx, enum machine_mode)); extern rtx ia64_expand_move PARAMS ((rtx, rtx)); extern int ia64_move_ok PARAMS((rtx, rtx)); +extern int addp4_optimize_ok PARAMS((rtx, rtx)); extern void ia64_emit_cond_move PARAMS((rtx, rtx, rtx)); extern int ia64_depz_field_mask PARAMS((rtx, rtx)); extern rtx ia64_split_timode PARAMS((rtx[], rtx, rtx)); diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index bbcd90d..3f867b5 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -48,6 +48,7 @@ Boston, MA 02111-1307, USA. */ #include "target-def.h" #include "tm_p.h" #include "hashtab.h" +#include "langhooks.h" /* This is used for communication between ASM_OUTPUT_LABEL and ASM_OUTPUT_LABELREF. */ @@ -1075,6 +1076,21 @@ ia64_move_ok (dst, src) return GET_CODE (src) == CONST_DOUBLE && CONST_DOUBLE_OK_FOR_G (src); } +/* Return 0 if we are doing C++ code. This optimization fails with + C++ because of GNAT c++/6685. */ + +int +addp4_optimize_ok (op1, op2) + rtx op1, op2; +{ + + if (!strcmp (lang_hooks.name, "GNU C++")) + return 0; + + return (basereg_operand (op1, GET_MODE(op1)) != + basereg_operand (op2, GET_MODE(op2))); +} + /* Check if OP is a mask suitable for use with SHIFT in a dep.z instruction. Return the length of the field, or <= 0 on failure. */ diff --git a/gcc/config/ia64/ia64.md b/gcc/config/ia64/ia64.md index 074d8fd..8a503ce 100644 --- a/gcc/config/ia64/ia64.md +++ b/gcc/config/ia64/ia64.md @@ -5469,7 +5469,7 @@ [(plus:SI (match_operand:SI 1 "basereg_operand" "r") (match_operand:SI 2 "gr_reg_or_14bit_operand" "rI"))] UNSPEC_ADDP4))] - "" + "addp4_optimize_ok (operands[1], operands[2])" "addp4 %0 = %2, %1" [(set_attr "itanium_class" "ialu")]) @@ -5479,6 +5479,6 @@ [(plus:SI (match_operand:SI 1 "gr_register_operand" "r") (match_operand:SI 2 "basereg_operand" "r"))] UNSPEC_ADDP4))] - "" + "addp4_optimize_ok (operands[1], operands[2])" "addp4 %0 = %1, %2" [(set_attr "itanium_class" "ialu")]) |