@@ -363,8 +363,6 @@ rx_assemble_integer (rtx x, unsigned int size, int is_aligned)
}
-int rx_float_compare_mode;
-
/* Handles the insertion of a single operand into the assembler output.
The %<letter> directives supported are:
@@ -595,8 +595,6 @@ typedef unsigned int CUMULATIVE_ARGS;
they contain are always computed between two same-section symbols. */
#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
-extern int rx_float_compare_mode;
-
/* This is a version of REG_P that also returns TRUE for SUBREGs. */
#define RX_REG_P(rtl) (REG_P (rtl) || GET_CODE (rtl) == SUBREG)
@@ -706,20 +706,37 @@
(set_attr "timings" "45")] ;; The timing is a guesstimate average timing.
)
-;; FIXME: Add memory destination options ?
-(define_insn "cstoresi4"
- [(set (match_operand:SI 0 "register_operand" "=r,r,r,r,r,r,r")
+(define_insn_and_split "cstoresi4"
+ [(set (match_operand:SI 0 "register_operand" "=r")
(match_operator:SI 1 "comparison_operator"
- [(match_operand:SI 2 "register_operand" "r,r,r,r,r,r,r")
- (match_operand:SI 3 "rx_source_operand" "r,Uint04,Int08,Sint16,Sint24,i,Q")]))
- (clobber (reg:CC CC_REG))] ;; Because the cc flags are set based on comparing ops 2 & 3 not the value in op 0.
+ [(match_operand:SI 2 "register_operand" "r")
+ (match_operand:SI 3 "rx_source_operand" "riQ")]))
+ (clobber (reg:CC CC_REG))]
""
- {
- rx_float_compare_mode = false;
- return "cmp\t%Q3, %Q2\n\tsc%B1.L\t%0";
- }
- [(set_attr "timings" "22,22,22,22,22,22,44")
- (set_attr "length" "5,5,6,7,8,9,8")]
+ "#"
+ "reload_completed"
+ [(const_int 0)]
+{
+ rtx flags, x;
+
+ flags = gen_rtx_REG (CCmode, CC_REG);
+ x = gen_rtx_COMPARE (CCmode, operands[2], operands[3]);
+ x = gen_rtx_SET (VOIDmode, flags, x);
+ emit_insn (x);
+
+ x = gen_rtx_fmt_ee (GET_CODE (operands[1]), SImode, flags, const0_rtx);
+ x = gen_rtx_SET (VOIDmode, operands[0], x);
+ emit_insn (x);
+ DONE;
+})
+
+(define_insn "*sccc"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (match_operator:SI 1 "comparison_operator"
+ [(reg CC_REG) (const_int 0)]))]
+ "reload_completed"
+ "sc%B1.L\t%0"
+ [(set_attr "length" "3")]
)
(define_expand "movsicc"
From: Richard Henderson <rth@twiddle.net> This will allow elimination of the compare. --- gcc/config/rx/rx.c | 2 -- gcc/config/rx/rx.h | 2 -- gcc/config/rx/rx.md | 41 +++++++++++++++++++++++++++++------------ 3 files changed, 29 insertions(+), 16 deletions(-)