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-rw-r--r--patches/gcc/4.9.4/870-xtensa-add-mauto-litpools-option.patch287
1 files changed, 0 insertions, 287 deletions
diff --git a/patches/gcc/4.9.4/870-xtensa-add-mauto-litpools-option.patch b/patches/gcc/4.9.4/870-xtensa-add-mauto-litpools-option.patch
deleted file mode 100644
index 98c7b3f..0000000
--- a/patches/gcc/4.9.4/870-xtensa-add-mauto-litpools-option.patch
+++ /dev/null
@@ -1,287 +0,0 @@
-From 6d852ffb43b111a39162135c95249e749c4e285b Mon Sep 17 00:00:00 2001
-From: Max Filippov <jcmvbkbc@gmail.com>
-Date: Thu, 6 Aug 2015 01:16:02 +0300
-Subject: [PATCH] xtensa: add -mauto-litpools option
-
-With support from assembler this option allows compiling huge functions,
-where single literal pool at the beginning of a function may not be
-reachable by L32R instructions at its end.
-
-Currently assembler --auto-litpools option cannot deal with literals
-used from multiple locations separated by more than 256 KBytes of code.
-Don't turn constants into literals, instead use MOVI instruction to load
-them into registers and let the assembler turn them into literals as
-necessary.
-
-2015-08-12 Max Filippov <jcmvbkbc@gmail.com>
-gcc/
- * config/xtensa/constraints.md (define_constraint "Y"): New
- constraint.
- * config/xtensa/elf.h (ASM_SPEC): Add m(no-)auto-litpools.
- * config/xtensa/linux.h (ASM_SPEC): Likewise.
- * config/xtensa/predicates.md (move_operand): Match constants
- and symbols in the presence of TARGET_AUTO_LITPOOLS.
- * config/xtensa/xtensa.c (xtensa_valid_move): Don't allow
- immediate references to TLS data.
- (xtensa_emit_move_sequence): Don't force constants to memory in
- the presence of TARGET_AUTO_LITPOOLS.
- (print_operand): Add 'y' format, same as default, but capable of
- printing SF mode constants as well.
- * config/xtensa/xtensa.md (movsi_internal, movhi_internal)
- (movsf_internal): Add movi pattern that loads literal.
- (movsf, movdf): Don't force constants to memory in the presence
- of TARGET_AUTO_LITPOOLS.
- (movdf_internal): Add 'Y' constraint.
- * config/xtensa/xtensa.opt (mauto-litpools): New option.
-
-Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
----
-Backported from: r226828
-Changes to ChangeLogs and documentation are dropped.
-
- gcc/config/xtensa/constraints.md | 5 +++++
- gcc/config/xtensa/elf.h | 4 +++-
- gcc/config/xtensa/linux.h | 4 +++-
- gcc/config/xtensa/predicates.md | 3 ++-
- gcc/config/xtensa/xtensa.c | 19 ++++++++++++++++++-
- gcc/config/xtensa/xtensa.md | 35 +++++++++++++++++++----------------
- gcc/config/xtensa/xtensa.opt | 4 ++++
- 7 files changed, 54 insertions(+), 20 deletions(-)
-
-Index: b/gcc/config/xtensa/constraints.md
-===================================================================
---- a/gcc/config/xtensa/constraints.md
-+++ b/gcc/config/xtensa/constraints.md
-@@ -111,6 +111,11 @@
- (and (match_code "const_int")
- (match_test "xtensa_mask_immediate (ival)")))
-
-+(define_constraint "Y"
-+ "A constant that can be used in relaxed MOVI instructions."
-+ (and (match_code "const_int,const_double,const,symbol_ref,label_ref")
-+ (match_test "TARGET_AUTO_LITPOOLS")))
-+
- ;; Memory constraints. Do not use define_memory_constraint here. Doing so
- ;; causes reload to force some constants into the constant pool, but since
- ;; the Xtensa constant pool can only be accessed with L32R instructions, it
-Index: b/gcc/config/xtensa/elf.h
-===================================================================
---- a/gcc/config/xtensa/elf.h
-+++ b/gcc/config/xtensa/elf.h
-@@ -48,7 +48,9 @@
- %{mtarget-align:--target-align} \
- %{mno-target-align:--no-target-align} \
- %{mlongcalls:--longcalls} \
-- %{mno-longcalls:--no-longcalls}"
-+ %{mno-longcalls:--no-longcalls} \
-+ %{mauto-litpools:--auto-litpools} \
-+ %{mno-auto-litpools:--no-auto-litpools}"
-
- #undef LIB_SPEC
- #define LIB_SPEC "-lc -lsim -lc -lhandlers-sim -lhal"
-Index: b/gcc/config/xtensa/linux.h
-===================================================================
---- a/gcc/config/xtensa/linux.h
-+++ b/gcc/config/xtensa/linux.h
-@@ -42,7 +42,9 @@
- %{mtarget-align:--target-align} \
- %{mno-target-align:--no-target-align} \
- %{mlongcalls:--longcalls} \
-- %{mno-longcalls:--no-longcalls}"
-+ %{mno-longcalls:--no-longcalls} \
-+ %{mauto-litpools:--auto-litpools} \
-+ %{mno-auto-litpools:--no-auto-litpools}"
-
- #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
-
-Index: b/gcc/config/xtensa/predicates.md
-===================================================================
---- a/gcc/config/xtensa/predicates.md
-+++ b/gcc/config/xtensa/predicates.md
-@@ -142,7 +142,8 @@
- (match_test "GET_MODE_CLASS (mode) == MODE_INT
- && xtensa_simm12b (INTVAL (op))"))
- (and (match_code "const_int,const_double,const,symbol_ref,label_ref")
-- (match_test "TARGET_CONST16 && CONSTANT_P (op)
-+ (match_test "(TARGET_CONST16 || TARGET_AUTO_LITPOOLS)
-+ && CONSTANT_P (op)
- && GET_MODE_SIZE (mode) % UNITS_PER_WORD == 0")))))
-
- ;; Accept the floating point constant 1 in the appropriate mode.
-Index: b/gcc/config/xtensa/xtensa.c
-===================================================================
---- a/gcc/config/xtensa/xtensa.c
-+++ b/gcc/config/xtensa/xtensa.c
-@@ -477,6 +477,9 @@
- {
- int dst_regnum = xt_true_regnum (operands[0]);
-
-+ if (xtensa_tls_referenced_p (operands[1]))
-+ return FALSE;
-+
- /* The stack pointer can only be assigned with a MOVSP opcode. */
- if (dst_regnum == STACK_POINTER_REGNUM)
- return (mode == SImode
-@@ -1044,7 +1047,7 @@
- return 1;
- }
-
-- if (! TARGET_CONST16)
-+ if (! TARGET_AUTO_LITPOOLS && ! TARGET_CONST16)
- {
- src = force_const_mem (SImode, src);
- operands[1] = src;
-@@ -2428,6 +2431,20 @@
- }
- break;
-
-+ case 'y':
-+ if (GET_CODE (x) == CONST_DOUBLE &&
-+ GET_MODE (x) == SFmode)
-+ {
-+ REAL_VALUE_TYPE r;
-+ long l;
-+ REAL_VALUE_FROM_CONST_DOUBLE (r, x);
-+ REAL_VALUE_TO_TARGET_SINGLE (r, l);
-+ fprintf (file, "0x%08lx", l);
-+ break;
-+ }
-+
-+ /* fall through */
-+
- default:
- if (GET_CODE (x) == REG || GET_CODE (x) == SUBREG)
- fprintf (file, "%s", reg_names[xt_true_regnum (x)]);
-Index: b/gcc/config/xtensa/xtensa.md
-===================================================================
---- a/gcc/config/xtensa/xtensa.md
-+++ b/gcc/config/xtensa/xtensa.md
-@@ -799,8 +799,8 @@
- })
-
- (define_insn "movsi_internal"
-- [(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,W,a,a,U,*a,*A")
-- (match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,i,T,U,r,*A,*r"))]
-+ [(set (match_operand:SI 0 "nonimmed_operand" "=D,D,D,D,R,R,a,q,a,a,W,a,a,U,*a,*A")
-+ (match_operand:SI 1 "move_operand" "M,D,d,R,D,d,r,r,I,Y,i,T,U,r,*A,*r"))]
- "xtensa_valid_move (SImode, operands)"
- "@
- movi.n\t%0, %x1
-@@ -812,15 +812,16 @@
- mov\t%0, %1
- movsp\t%0, %1
- movi\t%0, %x1
-+ movi\t%0, %1
- const16\t%0, %t1\;const16\t%0, %b1
- %v1l32r\t%0, %1
- %v1l32i\t%0, %1
- %v0s32i\t%1, %0
- rsr\t%0, ACCLO
- wsr\t%1, ACCLO"
-- [(set_attr "type" "move,move,move,load,store,store,move,move,move,move,load,load,store,rsr,wsr")
-+ [(set_attr "type" "move,move,move,load,store,store,move,move,move,move,move,load,load,store,rsr,wsr")
- (set_attr "mode" "SI")
-- (set_attr "length" "2,2,2,2,2,2,3,3,3,6,3,3,3,3,3")])
-+ (set_attr "length" "2,2,2,2,2,2,3,3,3,3,6,3,3,3,3,3")])
-
- ;; 16-bit Integer moves
-
-@@ -834,21 +835,22 @@
- })
-
- (define_insn "movhi_internal"
-- [(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,U,*a,*A")
-- (match_operand:HI 1 "move_operand" "M,d,r,I,U,r,*A,*r"))]
-+ [(set (match_operand:HI 0 "nonimmed_operand" "=D,D,a,a,a,a,U,*a,*A")
-+ (match_operand:HI 1 "move_operand" "M,d,r,I,Y,U,r,*A,*r"))]
- "xtensa_valid_move (HImode, operands)"
- "@
- movi.n\t%0, %x1
- mov.n\t%0, %1
- mov\t%0, %1
- movi\t%0, %x1
-+ movi\t%0, %1
- %v1l16ui\t%0, %1
- %v0s16i\t%1, %0
- rsr\t%0, ACCLO
- wsr\t%1, ACCLO"
-- [(set_attr "type" "move,move,move,move,load,store,rsr,wsr")
-+ [(set_attr "type" "move,move,move,move,move,load,store,rsr,wsr")
- (set_attr "mode" "HI")
-- (set_attr "length" "2,2,3,3,3,3,3,3")])
-+ (set_attr "length" "2,2,3,3,3,3,3,3,3")])
-
- ;; 8-bit Integer moves
-
-@@ -919,7 +921,7 @@
- (match_operand:SF 1 "general_operand" ""))]
- ""
- {
-- if (!TARGET_CONST16 && CONSTANT_P (operands[1]))
-+ if (!TARGET_CONST16 && !TARGET_AUTO_LITPOOLS && CONSTANT_P (operands[1]))
- operands[1] = force_const_mem (SFmode, operands[1]);
-
- if ((!register_operand (operands[0], SFmode)
-@@ -934,8 +936,8 @@
- })
-
- (define_insn "movsf_internal"
-- [(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,W,a,a,U")
-- (match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,iF,T,U,r"))]
-+ [(set (match_operand:SF 0 "nonimmed_operand" "=f,f,U,D,D,R,a,f,a,a,W,a,a,U")
-+ (match_operand:SF 1 "move_operand" "f,U,f,d,R,d,r,r,f,Y,iF,T,U,r"))]
- "((register_operand (operands[0], SFmode)
- || register_operand (operands[1], SFmode))
- && !(FP_REG_P (xt_true_regnum (operands[0]))
-@@ -950,13 +952,14 @@
- mov\t%0, %1
- wfr\t%0, %1
- rfr\t%0, %1
-+ movi\t%0, %y1
- const16\t%0, %t1\;const16\t%0, %b1
- %v1l32r\t%0, %1
- %v1l32i\t%0, %1
- %v0s32i\t%1, %0"
-- [(set_attr "type" "farith,fload,fstore,move,load,store,move,farith,farith,move,load,load,store")
-+ [(set_attr "type" "farith,fload,fstore,move,load,store,move,farith,farith,move,move,load,load,store")
- (set_attr "mode" "SF")
-- (set_attr "length" "3,3,3,2,2,2,3,3,3,6,3,3,3")])
-+ (set_attr "length" "3,3,3,2,2,2,3,3,3,3,6,3,3,3")])
-
- (define_insn "*lsiu"
- [(set (match_operand:SF 0 "register_operand" "=f")
-@@ -997,7 +1000,7 @@
- (match_operand:DF 1 "general_operand" ""))]
- ""
- {
-- if (CONSTANT_P (operands[1]) && !TARGET_CONST16)
-+ if (CONSTANT_P (operands[1]) && !TARGET_CONST16 && !TARGET_AUTO_LITPOOLS)
- operands[1] = force_const_mem (DFmode, operands[1]);
-
- if (!register_operand (operands[0], DFmode)
-@@ -1008,8 +1011,8 @@
- })
-
- (define_insn_and_split "movdf_internal"
-- [(set (match_operand:DF 0 "nonimmed_operand" "=a,W,a,a,U")
-- (match_operand:DF 1 "move_operand" "r,iF,T,U,r"))]
-+ [(set (match_operand:DF 0 "nonimmed_operand" "=a,a,W,a,a,U")
-+ (match_operand:DF 1 "move_operand" "r,Y,iF,T,U,r"))]
- "register_operand (operands[0], DFmode)
- || register_operand (operands[1], DFmode)"
- "#"
-Index: b/gcc/config/xtensa/xtensa.opt
-===================================================================
---- a/gcc/config/xtensa/xtensa.opt
-+++ b/gcc/config/xtensa/xtensa.opt
-@@ -38,6 +38,10 @@
- Target
- Intersperse literal pools with code in the text section
-
-+mauto-litpools
-+Target Report Mask(AUTO_LITPOOLS)
-+Relax literals in assembler and place them automatically in the text section
-+
- mserialize-volatile
- Target Report Mask(SERIALIZE_VOLATILE)
- -mno-serialize-volatile Do not serialize volatile memory references with MEMW instructions