aboutsummaryrefslogtreecommitdiff
path: root/gcc/config/mips/mips.md
diff options
context:
space:
mode:
Diffstat (limited to 'gcc/config/mips/mips.md')
-rw-r--r--gcc/config/mips/mips.md109
1 files changed, 91 insertions, 18 deletions
diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md
index 7aa461d..bbcc5c9 100644
--- a/gcc/config/mips/mips.md
+++ b/gcc/config/mips/mips.md
@@ -342,13 +342,14 @@
;; syncloop memory atomic operation implemented as a sync loop
;; nop no operation
;; ghost an instruction that produces no real code
+;; multimem microMIPS multiword load and store
(define_attr "type"
"unknown,branch,jump,call,load,fpload,fpidxload,store,fpstore,fpidxstore,
prefetch,prefetchx,condmove,mtc,mfc,mthi,mtlo,mfhi,mflo,const,arith,logical,
shift,slt,signext,clz,pop,trap,imul,imul3,imul3nc,imadd,idiv,idiv3,move,
fmove,fadd,fmul,fmadd,fdiv,frdiv,frdiv1,frdiv2,fabs,fneg,fcmp,fcvt,fsqrt,
frsqrt,frsqrt1,frsqrt2,dspmac,dspmacsat,accext,accmod,dspalu,dspalusat,
- multi,atomic,syncloop,nop,ghost"
+ multi,atomic,syncloop,nop,ghost,multimem"
(cond [(eq_attr "jal" "!unset") (const_string "call")
(eq_attr "got" "load") (const_string "load")
@@ -413,9 +414,15 @@
;; Length of instruction in bytes.
(define_attr "length" ""
- (cond [;; Direct branch instructions have a range of [-0x20000,0x1fffc],
- ;; relative to the address of the delay slot. If a branch is
- ;; outside this range, we have a choice of two sequences.
+ (cond [(and (eq_attr "extended_mips16" "yes")
+ (match_test "TARGET_MIPS16"))
+ (const_int 8)
+
+ ;; Direct microMIPS branch instructions have a range of
+ ;; [-0x10000,0xfffe], otherwise the range is [-0x20000,0x1fffc].
+ ;; If a branch is outside this range, we have a choice of two
+ ;; sequences.
+ ;;
;; For PIC, an out-of-range branch like:
;;
;; bne r1,r2,target
@@ -451,8 +458,15 @@
;; from the shorten_branches reference address.
(and (eq_attr "type" "branch")
(not (match_test "TARGET_MIPS16")))
- (cond [(and (le (minus (match_dup 0) (pc)) (const_int 131064))
- (le (minus (pc) (match_dup 0)) (const_int 131068)))
+ (cond [;; Any variant can handle the 17-bit range.
+ (and (le (minus (match_dup 0) (pc)) (const_int 65532))
+ (le (minus (pc) (match_dup 0)) (const_int 65534)))
+ (const_int 4)
+
+ ;; The 18-bit range is OK other than for microMIPS.
+ (and (not (match_test "TARGET_MICROMIPS"))
+ (and (le (minus (match_dup 0) (pc)) (const_int 131064))
+ (le (minus (pc) (match_dup 0)) (const_int 131068))))
(const_int 4)
;; The non-PIC case: branch, first delay slot, and J.
@@ -712,6 +726,9 @@
;; modes.
(define_mode_iterator GPR2 [SI (DI "TARGET_64BIT")])
+(define_mode_iterator MOVEP1 [SI SF])
+(define_mode_iterator MOVEP2 [SI SF])
+
;; This mode iterator allows :HILO to be used as the mode of the
;; concatenated HI and LO registers.
(define_mode_iterator HILO [(DI "!TARGET_64BIT") (TI "TARGET_64BIT")])
@@ -3937,7 +3954,7 @@
(define_insn "mov_<load>l"
[(set (match_operand:GPR 0 "register_operand" "=d")
(unspec:GPR [(match_operand:BLK 1 "memory_operand" "m")
- (match_operand:QI 2 "memory_operand" "m")]
+ (match_operand:QI 2 "memory_operand" "ZC")]
UNSPEC_LOAD_LEFT))]
"!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
"<load>l\t%0,%2"
@@ -3947,7 +3964,7 @@
(define_insn "mov_<load>r"
[(set (match_operand:GPR 0 "register_operand" "=d")
(unspec:GPR [(match_operand:BLK 1 "memory_operand" "m")
- (match_operand:QI 2 "memory_operand" "m")
+ (match_operand:QI 2 "memory_operand" "ZC")
(match_operand:GPR 3 "register_operand" "0")]
UNSPEC_LOAD_RIGHT))]
"!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[1])"
@@ -3958,7 +3975,7 @@
(define_insn "mov_<store>l"
[(set (match_operand:BLK 0 "memory_operand" "=m")
(unspec:BLK [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
- (match_operand:QI 2 "memory_operand" "m")]
+ (match_operand:QI 2 "memory_operand" "ZC")]
UNSPEC_STORE_LEFT))]
"!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
"<store>l\t%z1,%2"
@@ -3968,7 +3985,7 @@
(define_insn "mov_<store>r"
[(set (match_operand:BLK 0 "memory_operand" "+m")
(unspec:BLK [(match_operand:GPR 1 "reg_or_0_operand" "dJ")
- (match_operand:QI 2 "memory_operand" "m")
+ (match_operand:QI 2 "memory_operand" "ZC")
(match_dup 0)]
UNSPEC_STORE_RIGHT))]
"!TARGET_MIPS16 && mips_mem_fits_mode_p (<MODE>mode, operands[0])"
@@ -5447,6 +5464,14 @@
(pc)))]
"!TARGET_MIPS16"
{
+ /* For a simple BNEZ or BEQZ microMIPS branch. */
+ if (TARGET_MICROMIPS
+ && operands[3] == const0_rtx
+ && get_attr_length (insn) <= 8)
+ return mips_output_conditional_branch (insn, operands,
+ "%*b%C1z%:\t%2,%0",
+ "%*b%N1z%:\t%2,%0");
+
return mips_output_conditional_branch (insn, operands,
MIPS_BRANCH ("b%C1", "%2,%z3,%0"),
MIPS_BRANCH ("b%N1", "%2,%z3,%0"));
@@ -5463,6 +5488,14 @@
(label_ref (match_operand 0 "" ""))))]
"!TARGET_MIPS16"
{
+ /* For a simple BNEZ or BEQZ microMIPS branch. */
+ if (TARGET_MICROMIPS
+ && operands[3] == const0_rtx
+ && get_attr_length (insn) <= 8)
+ return mips_output_conditional_branch (insn, operands,
+ "%*b%N0z%:\t%2,%1",
+ "%*b%C0z%:\t%2,%1");
+
return mips_output_conditional_branch (insn, operands,
MIPS_BRANCH ("b%N1", "%2,%z3,%0"),
MIPS_BRANCH ("b%C1", "%2,%z3,%0"));
@@ -5766,7 +5799,14 @@
[(set (pc)
(label_ref (match_operand 0)))]
"!TARGET_MIPS16 && TARGET_ABSOLUTE_JUMPS"
- { return MIPS_ABSOLUTE_JUMP ("%*j\t%l0%/"); }
+{
+ /* Use a branch for microMIPS. The assembler will choose
+ a 16-bit branch, a 32-bit branch, or a 32-bit jump. */
+ if (TARGET_MICROMIPS && !TARGET_ABICALLS_PIC2)
+ return "%*b\t%l0%/";
+ else
+ return MIPS_ABSOLUTE_JUMP ("%*j\t%l0%/");
+}
[(set_attr "type" "jump")])
(define_insn "*jump_pic"
@@ -5829,7 +5869,12 @@
(define_insn "indirect_jump_<mode>"
[(set (pc) (match_operand:P 0 "register_operand" "d"))]
""
- "%*j\t%0%/"
+{
+ if (TARGET_MICROMIPS)
+ return "%*jr%:\t%0";
+ else
+ return "%*j\t%0%/";
+}
[(set_attr "type" "jump")
(set_attr "mode" "none")])
@@ -5873,7 +5918,12 @@
(match_operand:P 0 "register_operand" "d"))
(use (label_ref (match_operand 1 "" "")))]
""
- "%*j\t%0%/"
+{
+ if (TARGET_MICROMIPS)
+ return "%*jr%:\t%0";
+ else
+ return "%*j\t%0%/";
+}
[(set_attr "type" "jump")
(set_attr "mode" "none")])
@@ -6094,7 +6144,12 @@
[(any_return)
(use (match_operand 0 "pmode_register_operand" ""))]
""
- "%*j\t%0%/"
+{
+ if (TARGET_MICROMIPS)
+ return "%*jr%:\t%0";
+ else
+ return "%*j\t%0%/";
+}
[(set_attr "type" "jump")
(set_attr "mode" "none")])
@@ -6350,7 +6405,12 @@
[(call (mem:SI (match_operand 0 "call_insn_operand" "j,S"))
(match_operand 1 "" ""))]
"TARGET_SIBCALLS && SIBLING_CALL_P (insn)"
- { return MIPS_CALL ("j", operands, 0, 1); }
+{
+ if (TARGET_MICROMIPS)
+ return MICROMIPS_J ("j", operands, 0);
+ else
+ return MIPS_CALL ("j", operands, 0, 1);
+}
[(set_attr "jal" "indirect,direct")
(set_attr "jal_macro" "no")])
@@ -6371,7 +6431,12 @@
(call (mem:SI (match_operand 1 "call_insn_operand" "j,S"))
(match_operand 2 "" "")))]
"TARGET_SIBCALLS && SIBLING_CALL_P (insn)"
- { return MIPS_CALL ("j", operands, 1, 2); }
+{
+ if (TARGET_MICROMIPS)
+ return MICROMIPS_J ("j", operands, 1);
+ else
+ return MIPS_CALL ("j", operands, 1, 2);
+}
[(set_attr "jal" "indirect,direct")
(set_attr "jal_macro" "no")])
@@ -6383,7 +6448,12 @@
(call (mem:SI (match_dup 1))
(match_dup 2)))]
"TARGET_SIBCALLS && SIBLING_CALL_P (insn)"
- { return MIPS_CALL ("j", operands, 1, 2); }
+{
+ if (TARGET_MICROMIPS)
+ return MICROMIPS_J ("j", operands, 1);
+ else
+ return MIPS_CALL ("j", operands, 1, 2);
+}
[(set_attr "jal" "indirect,direct")
(set_attr "jal_macro" "no")])
@@ -6629,7 +6699,7 @@
(define_insn "prefetch"
- [(prefetch (match_operand:QI 0 "address_operand" "p")
+ [(prefetch (match_operand:QI 0 "address_operand" "ZD")
(match_operand 1 "const_int_operand" "n")
(match_operand 2 "const_int_operand" "n"))]
"ISA_HAS_PREFETCH && TARGET_EXPLICIT_RELOCS"
@@ -6922,6 +6992,9 @@
; MIPS fixed-point instructions.
(include "mips-fixed.md")
+; microMIPS patterns.
+(include "micromips.md")
+
; ST-Microelectronics Loongson-2E/2F-specific patterns.
(include "loongson.md")
generated by cgit v1.1 at 2025-01-07 17:15:57 +0000