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riscv-gcc-1
Commit 9076b9c1 by Jan Hubicka Committed by Jan Hubicka
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i386-protos.h (no_comparison_operator, [...]): Remove. 

	* i386-protos.h (no_comparison_operator, uno_comparison_operator):
	Remove.
	(ix86_comparison_operator, ix86_cc_mode): Declare
	* i386.h (CCGC, CCGCO): New modes.
	(SELECT_CC_MODE): Move offline to ....
	* i386.c (ix86_cc_mode): .... here; use new modes.
	(ix86_comparison_operator): New.
	(fcmov_comparison_operator): Ensure proper mode.
	(put_condition_mode): More sanity checking.
	(ix86_match_ccmode): Handle new modes.
	(ix86_expand_fp_compare): GEU requires CCmode.
	(ix86_expand_strlensi_unroll_1): Use emit_cmp_and_jump_insn instead of
	doing it by hand.
	* i386.md (cmp?i_ccz_1): Remove
	(cmp?i_ccno_1): Use ix86_match_ccmode.
	(cmp?i_minus_1): New.
	(cmpsi_1): New expander.
	(cmpqi_ext_1): Use match_ccmode
	(cmpqi_ext_3): New expander.
	(cmpqi_ext_3_insn): Rename from cmpqi_ext_3.
	(cmpqi_ext_4): Use match_ccmode.
	(add?i_?): Use match_ccmode.
	(add?i_6): New.
	(test?i_ccz_1): Remove
	(test?i_1): New.
	(testsi_ccno_1, testqi_ccz_1, testqi_ext_ccno_0): New expander.
	(testqi_ext_0): Use ix86_match_ccmode.
	(*xorqi_cc_ext_1): Use ix86_match_ccmode.
	(xorqi_cc_ext_1): New expander.
	(shift patterns): Use CCGOCmode for all shifts except for sar.
	(setcc_?, jcc_?, miv?icc_nic): Use ix86_comparison_operator.
	(setcc_3, jcc_3, miv?icc_c): Remove.

From-SVN: r36442
parent 5eca72d9
Showing with 174 additions and 96 deletions
gcc/ChangeLog
Fri Sep 15 19:45:55 MET DST 2000 Jan Hubicka <jh@suse.cz>
* i386-protos.h (no_comparison_operator, uno_comparison_operator):
Remove.
(ix86_comparison_operator, ix86_cc_mode): Declare
* i386.h (CCGC, CCGCO): New modes.
(SELECT_CC_MODE): Move offline to ....
* i386.c (ix86_cc_mode): .... here; use new modes.
(ix86_comparison_operator): New.
(fcmov_comparison_operator): Ensure proper mode.
(put_condition_mode): More sanity checking.
(ix86_match_ccmode): Handle new modes.
(ix86_expand_fp_compare): GEU requires CCmode.
(ix86_expand_strlensi_unroll_1): Use emit_cmp_and_jump_insn instead of
doing it by hand.
* i386.md (cmp?i_ccz_1): Remove
(cmp?i_ccno_1): Use ix86_match_ccmode.
(cmp?i_minus_1): New.
(cmpsi_1): New expander.
(cmpqi_ext_1): Use match_ccmode
(cmpqi_ext_3): New expander.
(cmpqi_ext_3_insn): Rename from cmpqi_ext_3.
(cmpqi_ext_4): Use match_ccmode.
(add?i_?): Use match_ccmode.
(add?i_6): New.
(test?i_ccz_1): Remove
(test?i_1): New.
(testsi_ccno_1, testqi_ccz_1, testqi_ext_ccno_0): New expander.
(testqi_ext_0): Use ix86_match_ccmode.
(*xorqi_cc_ext_1): Use ix86_match_ccmode.
(xorqi_cc_ext_1): New expander.
(shift patterns): Use CCGOCmode for all shifts except for sar.
(setcc_?, jcc_?, miv?icc_nic): Use ix86_comparison_operator.
(setcc_3, jcc_3, miv?icc_c): Remove.
2000-09-15 Will Cohen <wcohen@redhat.com>
* dwarf2out.c (add_const_value_attribute): Changed array into a
......
gcc/config/i386/i386-protos.h
......@@ -56,11 +56,10 @@ extern int general_no_elim_operand PARAMS ((rtx, enum machine_mode));
extern int nonmemory_no_elim_operand PARAMS ((rtx, enum machine_mode));
extern int q_regs_operand PARAMS ((rtx, enum machine_mode));
extern int non_q_regs_operand PARAMS ((rtx, enum machine_mode));
extern int no_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int sse_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int fcmov_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int uno_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int cmp_fp_expander_operand PARAMS ((rtx, enum machine_mode));
extern int ix86_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int ext_register_operand PARAMS ((rtx, enum machine_mode));
extern int binary_fp_operator PARAMS ((rtx, enum machine_mode));
extern int mult_operator PARAMS ((rtx, enum machine_mode));
......@@ -71,6 +70,7 @@ extern int memory_displacement_operand PARAMS ((rtx, enum machine_mode));
extern int cmpsi_operand PARAMS ((rtx, enum machine_mode));
extern int long_memory_operand PARAMS ((rtx, enum machine_mode));
extern int aligned_operand PARAMS ((rtx, enum machine_mode));
extern enum machine_mode ix86_cc_mode PARAMS ((enum rtx_code, rtx, rtx));
extern int legitimate_pic_address_disp_p PARAMS ((rtx));
......
gcc/config/i386/i386.h
......@@ -2257,14 +2257,25 @@ while (0)
For the i386, we need separate modes when floating-point
equality comparisons are being done.
Add CCNO to indicate comparisons against zero that requires
No Overflow. Sign bit test is used instead and thus
can be used to form "a&b>0" type of tests.
Add CCGC to indicate comparisons agains zero that allows
unspecified garbage in the Carry flag. This mode is used
by inc/dec instructions.
Add CCNO to indicate No Overflow, which is often also includes
No Carry. This is typically used on the output of logicals,
and is only valid in comparisons against zero.
Add CCGCO to indicate comparisons agains zero that allows
unspecified garbage in the Carry and Overflow flag. This
mode is used to simulate comparisons of (a-b) and (a+b)
against zero using sub/cmp/add operations.
Add CCZ to indicate that only the Zero flag is valid. */
#define EXTRA_CC_MODES \
CC(CCGCmode, "CCGC") \
CC(CCGOCmode, "CCGOC") \
CC(CCNOmode, "CCNO") \
CC(CCZmode, "CCZ") \
CC(CCFPmode, "CCFP") \
......@@ -2279,12 +2290,7 @@ while (0)
For integer comparisons against zero, reduce to CCNOmode or CCZmode if
possible, to allow for more combinations. */
#define SELECT_CC_MODE(OP,X,Y) \
(GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
? (OP) == EQ || (OP) == NE ? CCFPUmode : CCFPmode \
: (OP) == LE || (OP) == GT ? CCmode \
: (Y) != const0_rtx ? CCmode \
: (OP) == EQ || (OP) == NE ? CCZmode : CCNOmode)
#define SELECT_CC_MODE(OP,X,Y) ix86_cc_mode (OP, X, Y)
/* Control the assembler format that we output, to the extent
this does not vary between assemblers. */
......@@ -2591,10 +2597,9 @@ do { long l; \
{"nonmemory_no_elim_operand", {CONST_INT, REG, SUBREG}}, \
{"q_regs_operand", {SUBREG, REG}}, \
{"non_q_regs_operand", {SUBREG, REG}}, \
{"no_comparison_operator", {EQ, NE, LT, GE, LTU, GTU, LEU, GEU}}, \
{"fcmov_comparison_operator", {EQ, NE, LTU, GTU, LEU, GEU}}, \
{"sse_comparison_operator", {EQ, LT, LE, UNORDERED }}, \
{"uno_comparison_operator", {EQ, NE, LE, LT, GE, GT, LEU, LTU, GEU, \
{"ix86_comparison_operator", {EQ, NE, LE, LT, GE, GT, LEU, LTU, GEU, \
GTU, UNORDERED, ORDERED}}, \
{"cmp_fp_expander_operand", {CONST_DOUBLE, SUBREG, REG, MEM}}, \
{"ext_register_operand", {SUBREG, REG}}, \
......
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