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Disable remaining conditional move patterns.

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* i386.md (movsicc, movhicc, movsicc_1, movhicc_1, movsfcc_1,
	movdfcc_1): Disable.

From-SVN: r19621
This commit is contained in:
Jim Wilson 1998-05-07 19:32:12 +00:00 committed by Jim Wilson
parent e445171e7c
commit 02e5620274
2 changed files with 17 additions and 6 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Thu May 7 19:26:34 1998 Jim Wilson <wilson@cygnus.com>
* i386.md (movsicc, movhicc, movsicc_1, movhicc_1, movsfcc_1,
movdfcc_1): Disable.
Thu May 7 15:39:14 1998 Jim Wilson <wilson@cygnus.com>
* configure.in (enable_threads): Rename to enable_threads_flag before

18
gcc/config/i386/i386.md
View File

@ -7225,6 +7225,12 @@ byte_xor_operation:
/* Conditional move define_insns. */
;; These are all disabled, because they are buggy. They are all susceptible
;; to problems with input reloads clobbering the condition code registers.
;; It appears the only safe way to write a integer/FP conditional move pattern
;; is to write one which emits both the compare and the cmov, and which can be
;; split only after reload.
(define_expand "movsicc"
[(match_dup 4)
(parallel [(set (match_operand 0 "register_operand" "")
@ -7232,7 +7238,7 @@ byte_xor_operation:
(match_operand:SI 2 "general_operand" "")
(match_operand:SI 3 "general_operand" "")))
(clobber (match_scratch:SI 4 "=&r"))])]
"TARGET_CMOVE"
"0 && TARGET_CMOVE"
"
{
operands[4] = i386_compare_gen (i386_compare_op0, i386_compare_op1);
@ -7245,7 +7251,7 @@ byte_xor_operation:
(match_operand:HI 2 "general_operand" "")
(match_operand:HI 3 "general_operand" "")))
(clobber (match_scratch:SI 4 "=&r"))])]
"TARGET_CMOVE"
"0 && TARGET_CMOVE"
"
{
operands[4] = i386_compare_gen (i386_compare_op0, i386_compare_op1);
@ -7258,7 +7264,7 @@ byte_xor_operation:
(match_operand:SI 2 "general_operand" "rm,0,rm,g")
(match_operand:SI 3 "general_operand" "0,rm,rm,g")))
(clobber (match_scratch:SI 4 "X,X,X,=&r"))]
"TARGET_CMOVE"
"0 && TARGET_CMOVE"
"*
{
if (which_alternative == 0)
@ -7319,7 +7325,7 @@ byte_xor_operation:
(match_operand:HI 2 "general_operand" "rm,0,rm,g")
(match_operand:HI 3 "general_operand" "0,rm,rm,g")))
(clobber (match_scratch:SI 4 "X,X,X,=&r"))]
"TARGET_CMOVE"
"0 && TARGET_CMOVE"
"*
{
if (which_alternative == 0)
@ -7418,7 +7424,7 @@ byte_xor_operation:
[(cc0) (const_int 0)])
(match_operand:SF 2 "register_operand" "0,f,f")
(match_operand:SF 3 "register_operand" "f,0,f")))]
"TARGET_CMOVE"
"0 && TARGET_CMOVE"
"*
{
switch (which_alternative)
@ -7449,7 +7455,7 @@ byte_xor_operation:
[(cc0) (const_int 0)])
(match_operand:DF 2 "register_operand" "0,f,f")
(match_operand:DF 3 "register_operand" "f,0,f")))]
"TARGET_CMOVE"
"0 && TARGET_CMOVE"
"*
{
switch (which_alternative)