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* [gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] RISC-V: Add Types to Un-Typed Risc-v Instructions
@ 2023-09-11 13:36 Jeff Law
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From: Jeff Law @ 2023-09-11 13:36 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:ceffe590b073669b894aaf42f880110ecfea10ea
commit ceffe590b073669b894aaf42f880110ecfea10ea
Author: Edwin Lu <ewlu@rivosinc.com>
Date: Tue Sep 5 10:09:40 2023 -0700
RISC-V: Add Types to Un-Typed Risc-v Instructions
Updates risc-v instructions to ensure that no instruction is left
without a type attribute. Added new types "trap" and "cbo" (for
cache related instructions)
Tested for regressions using rv32/64 multilib with newlib/linux and
rv32/64 gcv for linux.
gcc/Changelog:
* config/riscv/riscv.md: Update/Add types
Reviewed-by: Jeff Law <jlaw@ventanamicro.com>
Signed-off-by: Edwin Lu <ewlu@rivosinc.com>
(cherry picked from commit decbf9ec81f33052be12296b89cd86ea65ae10da)
Diff:
---
gcc/config/riscv/riscv.md | 112 +++++++++++++++++++++++++++++++++-------------
1 file changed, 82 insertions(+), 30 deletions(-)
diff --git a/gcc/config/riscv/riscv.md b/gcc/config/riscv/riscv.md
index 4041875e0e35..d80b6938f84b 100644
--- a/gcc/config/riscv/riscv.md
+++ b/gcc/config/riscv/riscv.md
@@ -303,12 +303,14 @@
;; auipc integer addition to PC
;; sfb_alu SFB ALU instruction
;; nop no operation
+;; trap trap instruction
;; ghost an instruction that produces no real code
;; bitmanip bit manipulation instructions
;; clmul clmul, clmulh, clmulr
;; rotate rotation instructions
;; atomic atomic instructions
;; condmove conditional moves
+;; cbo cache block instructions
;; crypto cryptography instructions
;; Classification of RVV instructions which will be added to each RVV .md pattern and used by scheduler.
;; rdvlenb vector byte length vlenb csrr read
@@ -417,9 +419,9 @@
(define_attr "type"
"unknown,branch,jump,call,load,fpload,store,fpstore,
mtc,mfc,const,arith,logical,shift,slt,imul,idiv,move,fmove,fadd,fmul,
- fmadd,fdiv,fcmp,fcvt,fsqrt,multi,auipc,sfb_alu,nop,ghost,bitmanip,rotate,
- clmul,min,max,minu,maxu,clz,ctz,cpop,
- atomic,condmove,crypto,rdvlenb,rdvl,wrvxrm,wrfrm,rdfrm,vsetvl,
+ fmadd,fdiv,fcmp,fcvt,fsqrt,multi,auipc,sfb_alu,nop,trap,ghost,bitmanip,
+ rotate,clmul,min,max,minu,maxu,clz,ctz,cpop,
+ atomic,condmove,cbo,crypto,rdvlenb,rdvl,wrvxrm,wrfrm,rdfrm,vsetvl,
vlde,vste,vldm,vstm,vlds,vsts,
vldux,vldox,vstux,vstox,vldff,vldr,vstr,
vlsegde,vssegte,vlsegds,vssegts,vlsegdux,vlsegdox,vssegtux,vssegtox,vlsegdff,
@@ -1652,6 +1654,7 @@
(lshiftrt:DI (match_dup 0) (const_int 32)))]
{ operands[1] = gen_lowpart (DImode, operands[1]); }
[(set_attr "move_type" "shift_shift,load")
+ (set_attr "type" "load")
(set_attr "mode" "DI")])
(define_expand "zero_extendhi<GPR:mode>2"
@@ -1680,6 +1683,7 @@
operands[2] = GEN_INT(GET_MODE_BITSIZE(<GPR:MODE>mode) - 16);
}
[(set_attr "move_type" "shift_shift,load")
+ (set_attr "type" "load")
(set_attr "mode" "<GPR:MODE>")])
(define_insn "zero_extendqi<SUPERQI:mode>2"
@@ -1691,6 +1695,7 @@
andi\t%0,%1,0xff
lbu\t%0,%1"
[(set_attr "move_type" "andi,load")
+ (set_attr "type" "multi")
(set_attr "mode" "<SUPERQI:MODE>")])
;;
@@ -1709,6 +1714,7 @@
sext.w\t%0,%1
lw\t%0,%1"
[(set_attr "move_type" "move,load")
+ (set_attr "type" "multi")
(set_attr "mode" "DI")])
(define_expand "extend<SHORT:mode><SUPERQI:mode>2"
@@ -1736,6 +1742,7 @@
- GET_MODE_BITSIZE (<SHORT:MODE>mode));
}
[(set_attr "move_type" "shift_shift,load")
+ (set_attr "type" "load")
(set_attr "mode" "SI")])
(define_insn "extendhfsf2"
@@ -1784,6 +1791,7 @@
|| reg_or_0_operand (operands[1], HFmode))"
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "fmove,fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
+ (set_attr "type" "fmove")
(set_attr "mode" "HF")])
(define_insn "*movhf_softfloat"
@@ -1794,6 +1802,7 @@
|| reg_or_0_operand (operands[1], HFmode))"
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "fmove,move,load,store,mtc,mfc")
+ (set_attr "type" "fmove")
(set_attr "mode" "HF")])
;;
@@ -1888,6 +1897,7 @@
""
"la\t%0,%1"
[(set_attr "got" "load")
+ (set_attr "type" "load")
(set_attr "mode" "<MODE>")])
(define_insn "tls_add_tp_le<mode>"
@@ -1910,6 +1920,7 @@
""
"la.tls.gd\t%0,%1"
[(set_attr "got" "load")
+ (set_attr "type" "load")
(set_attr "mode" "<MODE>")])
(define_insn "got_load_tls_ie<mode>"
@@ -1920,6 +1931,7 @@
""
"la.tls.ie\t%0,%1"
[(set_attr "got" "load")
+ (set_attr "type" "load")
(set_attr "mode" "<MODE>")])
(define_insn "auipc<mode>"
@@ -1989,7 +2001,8 @@
riscv_move_integer (operands[0], operands[0], INTVAL (operands[1]),
<MODE>mode);
DONE;
-})
+}
+[(set_attr "type" "move")])
;; 64-bit integer moves
@@ -2011,6 +2024,7 @@
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore,rdvlenb")
(set_attr "mode" "DI")
+ (set_attr "type" "move")
(set_attr "ext" "base,base,base,base,d,d,d,d,d,vector")])
(define_insn "*movdi_64bit"
@@ -2022,6 +2036,7 @@
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fmove,fpstore,rdvlenb")
(set_attr "mode" "DI")
+ (set_attr "type" "move")
(set_attr "ext" "base,base,base,base,d,d,d,d,d,vector")])
;; 32-bit Integer moves
@@ -2045,6 +2060,7 @@
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "move,const,load,store,mtc,fpload,mfc,fpstore,rdvlenb")
(set_attr "mode" "SI")
+ (set_attr "type" "move")
(set_attr "ext" "base,base,base,base,f,f,f,f,vector")])
;; 16-bit Integer moves
@@ -2071,6 +2087,7 @@
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "move,const,load,store,mtc,mfc,rdvlenb")
(set_attr "mode" "HI")
+ (set_attr "type" "move")
(set_attr "ext" "base,base,base,base,f,f,vector")])
;; HImode constant generation; see riscv_move_integer for details.
@@ -2114,6 +2131,7 @@
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "move,const,load,store,mtc,mfc,rdvlenb")
(set_attr "mode" "QI")
+ (set_attr "type" "move")
(set_attr "ext" "base,base,base,base,f,f,vector")])
;; 32-bit floating point moves
@@ -2135,6 +2153,7 @@
|| reg_or_0_operand (operands[1], SFmode))"
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "fmove,fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
+ (set_attr "type" "fmove")
(set_attr "mode" "SF")])
(define_insn "*movsf_softfloat"
@@ -2145,6 +2164,7 @@
|| reg_or_0_operand (operands[1], SFmode))"
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "move,load,store")
+ (set_attr "type" "fmove")
(set_attr "mode" "SF")])
;; 64-bit floating point moves
@@ -2169,6 +2189,7 @@
|| reg_or_0_operand (operands[1], DFmode))"
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "fmove,fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
+ (set_attr "type" "fmove")
(set_attr "mode" "DF")])
(define_insn "*movdf_hardfloat_rv64"
@@ -2179,6 +2200,7 @@
|| reg_or_0_operand (operands[1], DFmode))"
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "fmove,fmove,mtc,fpload,fpstore,store,mtc,mfc,move,load,store")
+ (set_attr "type" "fmove")
(set_attr "mode" "DF")])
(define_insn "*movdf_softfloat"
@@ -2189,6 +2211,7 @@
|| reg_or_0_operand (operands[1], DFmode))"
{ return riscv_output_move (operands[0], operands[1]); }
[(set_attr "move_type" "move,load,store")
+ (set_attr "type" "fmove")
(set_attr "mode" "DF")])
(define_insn "movsidf2_low_rv32"
@@ -2269,17 +2292,20 @@
(define_insn "fence"
[(unspec_volatile [(const_int 0)] UNSPECV_FENCE)]
""
- "%|fence%-")
+ "%|fence%-"
+ [(set_attr "type" "atomic")])
(define_insn "fence_i"
[(unspec_volatile [(const_int 0)] UNSPECV_FENCE_I)]
"TARGET_ZIFENCEI"
- "fence.i")
+ "fence.i"
+ [(set_attr "type" "atomic")])
(define_insn "riscv_pause"
[(unspec_volatile [(const_int 0)] UNSPECV_PAUSE)]
""
- "* return TARGET_ZIHINTPAUSE ? \"pause\" : \".insn\t0x0100000f\";")
+ "* return TARGET_ZIHINTPAUSE ? \"pause\" : \".insn\t0x0100000f\";"
+ [(set_attr "type" "atomic")])
;;
;; ....................
@@ -2531,7 +2557,8 @@
operands[6] = GEN_INT (trailing);
operands[7] = GEN_INT (mask >> trailing);
-})
+}
+[(set_attr "type" "branch")])
(define_insn_and_split "*branch<ANYI:mode>_shiftedmask_equals_zero"
[(set (pc)
@@ -2558,7 +2585,8 @@
operands[6] = GEN_INT (leading);
operands[7] = GEN_INT (leading + trailing);
-})
+}
+[(set_attr "type" "branch")])
(define_insn "*branch<mode>"
[(set (pc)
@@ -2669,7 +2697,8 @@
operands[0] = gen_rtx_GE (<MODE>mode, operands[4], const0_rtx);
else
operands[0] = gen_rtx_LT (<MODE>mode, operands[4], const0_rtx);
-})
+}
+[(set_attr "type" "branch")])
(define_insn_and_split "*branch_on_bit_range<X:mode>"
[(set (pc)
@@ -2694,7 +2723,8 @@
(pc)))]
{
operands[3] = GEN_INT (GET_MODE_BITSIZE (<MODE>mode) - INTVAL (operands[3]));
-})
+}
+[(set_attr "type" "branch")])
;;
;; ....................
@@ -2997,13 +3027,15 @@
[(unspec [(match_operand:SI 0 "register_operand" "r")] UNSPEC_EH_RETURN)
(clobber (match_scratch:SI 1 "=&r"))]
"! TARGET_64BIT"
- "#")
+ "#"
+ [(set_attr "type" "jump")])
(define_insn "eh_set_lr_di"
[(unspec [(match_operand:DI 0 "register_operand" "r")] UNSPEC_EH_RETURN)
(clobber (match_scratch:DI 1 "=&r"))]
"TARGET_64BIT"
- "#")
+ "#"
+ [(set_attr "type" "jump")])
(define_split
[(unspec [(match_operand 0 "register_operand")] UNSPEC_EH_RETURN)
@@ -3021,7 +3053,8 @@
"#"
"epilogue_completed"
[(const_int 0)]
- "riscv_expand_epilogue (EXCEPTION_RETURN); DONE;")
+ "riscv_expand_epilogue (EXCEPTION_RETURN); DONE;"
+ [(set_attr "type" "jump")])
;;
;; ....................
@@ -3155,7 +3188,8 @@
(define_insn "trap"
[(trap_if (const_int 1) (const_int 0))]
""
- "ebreak")
+ "ebreak"
+ [(set_attr "type" "trap")])
;; Must use the registers that we save to prevent the rename reg optimization
;; pass from using them before the gpr_save pattern when shrink wrapping
@@ -3166,41 +3200,48 @@
[(unspec_volatile [(match_operand 0 "const_int_operand")]
UNSPECV_GPR_SAVE)])]
""
- "call\tt0,__riscv_save_%0")
+ "call\tt0,__riscv_save_%0"
+ [(set_attr "type" "call")])
(define_insn "gpr_restore"
[(unspec_volatile [(match_operand 0 "const_int_operand")] UNSPECV_GPR_RESTORE)]
""
- "tail\t__riscv_restore_%0")
+ "tail\t__riscv_restore_%0"
+ [(set_attr "type" "call")])
(define_insn "gpr_restore_return"
[(return)
(use (match_operand 0 "pmode_register_operand" ""))
(const_int 0)]
""
- "")
+ ""
+ [(set_attr "type" "jump")])
(define_insn "riscv_frcsr"
[(set (match_operand:SI 0 "register_operand" "=r")
(unspec_volatile [(const_int 0)] UNSPECV_FRCSR))]
"TARGET_HARD_FLOAT || TARGET_ZFINX"
- "frcsr\t%0")
+ "frcsr\t%0"
+ [(set_attr "type" "fmove")])
(define_insn "riscv_fscsr"
[(unspec_volatile [(match_operand:SI 0 "register_operand" "r")] UNSPECV_FSCSR)]
"TARGET_HARD_FLOAT || TARGET_ZFINX"
- "fscsr\t%0")
+ "fscsr\t%0"
+ [(set_attr "type" "fmove")])
(define_insn "riscv_frflags"
[(set (match_operand:SI 0 "register_operand" "=r")
(unspec_volatile [(const_int 0)] UNSPECV_FRFLAGS))]
"TARGET_HARD_FLOAT || TARGET_ZFINX"
- "frflags\t%0")
+ "frflags\t%0"
+ [(set_attr "type" "fmove")])
(define_insn "riscv_fsflags"
[(unspec_volatile [(match_operand:SI 0 "csr_operand" "rK")] UNSPECV_FSFLAGS)]
"TARGET_HARD_FLOAT || TARGET_ZFINX"
- "fsflags%i0\t%0")
+ "fsflags%i0\t%0"
+ [(set_attr "type" "fmove")])
(define_insn "*riscv_fsnvsnan<mode>2"
[(unspec_volatile [(match_operand:ANYF 0 "register_operand" "f")
@@ -3215,19 +3256,22 @@
[(return)
(unspec_volatile [(const_int 0)] UNSPECV_MRET)]
""
- "mret")
+ "mret"
+ [(set_attr "type" "jump")])
(define_insn "riscv_sret"
[(return)
(unspec_volatile [(const_int 0)] UNSPECV_SRET)]
""
- "sret")
+ "sret"
+ [(set_attr "type" "jump")])
(define_insn "riscv_uret"
[(return)
(unspec_volatile [(const_int 0)] UNSPECV_URET)]
""
- "uret")
+ "uret"
+ [(set_attr "type" "jump")])
(define_insn "stack_tie<mode>"
[(set (mem:BLK (scratch))
@@ -3236,7 +3280,8 @@
UNSPEC_TIE))]
""
""
- [(set_attr "length" "0")]
+ [(set_attr "type" "ghost")
+ (set_attr "length" "0")]
)
;; This fixes a failure with gcc.c-torture/execute/pr64242.c at -O2 for a
@@ -3294,7 +3339,8 @@
(set (match_scratch:GPR 2 "=&r") (const_int 0))]
""
"<load>\t%2, %1\;<store>\t%2, %0\;li\t%2, 0"
- [(set_attr "length" "12")])
+ [(set_attr "type" "multi")
+ (set_attr "length" "12")])
(define_expand "stack_protect_test"
[(match_operand 0 "memory_operand")
@@ -3333,13 +3379,15 @@
(clobber (match_scratch:GPR 3 "=&r"))]
""
"<load>\t%3, %1\;<load>\t%0, %2\;xor\t%0, %3, %0\;li\t%3, 0"
- [(set_attr "length" "12")])
+ [(set_attr "type" "multi")
+ (set_attr "length" "12")])
(define_insn "riscv_clean_<mode>"
[(unspec_volatile:X [(match_operand:X 0 "register_operand" "r")]
UNSPECV_CLEAN)]
"TARGET_ZICBOM"
"cbo.clean\t%a0"
+ [(set_attr "type" "cbo")]
)
(define_insn "riscv_flush_<mode>"
@@ -3347,6 +3395,7 @@
UNSPECV_FLUSH)]
"TARGET_ZICBOM"
"cbo.flush\t%a0"
+ [(set_attr "type" "cbo")]
)
(define_insn "riscv_inval_<mode>"
@@ -3354,6 +3403,7 @@
UNSPECV_INVAL)]
"TARGET_ZICBOM"
"cbo.inval\t%a0"
+ [(set_attr "type" "cbo")]
)
(define_insn "riscv_zero_<mode>"
@@ -3361,6 +3411,7 @@
UNSPECV_ZERO)]
"TARGET_ZICBOZ"
"cbo.zero\t%a0"
+ [(set_attr "type" "cbo")]
)
(define_insn "prefetch"
@@ -3375,7 +3426,8 @@
case 1: return "prefetch.w\t%a0";
default: gcc_unreachable ();
}
-})
+}
+ [(set_attr "type" "cbo")])
(define_insn "riscv_prefetchi_<mode>"
[(unspec_volatile:X [(match_operand:X 0 "address_operand" "r")
@@ -3383,7 +3435,7 @@
UNSPECV_PREI)]
"TARGET_ZICBOP"
"prefetch.i\t%a0"
-)
+ [(set_attr "type" "cbo")])
(define_expand "extv<mode>"
[(set (match_operand:GPR 0 "register_operand" "=r")
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