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- From 920a898d2a04933c13eb808a513bc5822e91f70a Mon Sep 17 00:00:00 2001
- From: sandra <sandra@138bc75d-0d04-0410-961f-82ee72b054a4>
- Date: Tue, 12 May 2015 15:57:22 +0000
- Subject: [PATCH] gcc/nios2: Add IJMP_REGS enum
- 2015-05-12 Chung-Lin Tang <cltang@codesourcery.com>
- Sandra Loosemore <sandra@codesourcery.com>
- gcc/
- * config/nios2/nios2.h (enum reg_class): Add IJMP_REGS enum
- value.
- (REG_CLASS_NAMES): Add "IJMP_REGS".
- (REG_CLASS_CONTENTS): Add new entry for IJMP_REGS.
- * config/nios2/nios2.md (indirect_jump,*tablejump): Adjust to
- use new "c" register constraint.
- * config/nios2/constraint.md (c): New register constraint
- corresponding to IJMP_REGS.
- git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223082 138bc75d-0d04-0410-961f-82ee72b054a4
- [Romain: rebase on gcc 5.4]
- Signed-off-by: Romain Naour <romain.naour@gmail.com>
- ---
- gcc/config/nios2/constraints.md | 3 +++
- gcc/config/nios2/nios2.h | 11 +++++++----
- gcc/config/nios2/nios2.md | 4 ++--
- 3 files changed, 12 insertions(+), 6 deletions(-)
- diff --git a/gcc/config/nios2/constraints.md b/gcc/config/nios2/constraints.md
- index f4bd9f7..735f892 100644
- --- a/gcc/config/nios2/constraints.md
- +++ b/gcc/config/nios2/constraints.md
- @@ -39,6 +39,9 @@
-
- ;; Register constraints
-
- +(define_register_constraint "c" "IJMP_REGS"
- + "A register suitable for an indirect jump.")
- +
- (define_register_constraint "j" "SIB_REGS"
- "A register suitable for an indirect sibcall.")
-
- diff --git a/gcc/config/nios2/nios2.h b/gcc/config/nios2/nios2.h
- index 117983d..7c329ae 100644
- --- a/gcc/config/nios2/nios2.h
- +++ b/gcc/config/nios2/nios2.h
- @@ -173,6 +173,7 @@ enum reg_class
- {
- NO_REGS,
- SIB_REGS,
- + IJMP_REGS,
- GP_REGS,
- ALL_REGS,
- LIM_REG_CLASSES
- @@ -183,6 +184,7 @@ enum reg_class
- #define REG_CLASS_NAMES \
- { "NO_REGS", \
- "SIB_REGS", \
- + "IJMP_REGS", \
- "GP_REGS", \
- "ALL_REGS" }
-
- @@ -190,10 +192,11 @@ enum reg_class
-
- #define REG_CLASS_CONTENTS \
- { \
- - /* NO_REGS */ { 0, 0}, \
- - /* SIB_REGS */ { 0xfe0c, 0}, \
- - /* GP_REGS */ {~0, 0}, \
- - /* ALL_REGS */ {~0,~0} \
- + /* NO_REGS */ { 0, 0}, \
- + /* SIB_REGS */ { 0xfe0c, 0}, \
- + /* IJMP_REGS */ { 0x7fffffff, 0}, \
- + /* GP_REGS */ {~0, 0}, \
- + /* ALL_REGS */ {~0,~0} \
- }
-
-
- diff --git a/gcc/config/nios2/nios2.md b/gcc/config/nios2/nios2.md
- index 7b35d269..36ef101 100644
- --- a/gcc/config/nios2/nios2.md
- +++ b/gcc/config/nios2/nios2.md
- @@ -697,7 +697,7 @@
- ; check or adjust for overflow.
-
- (define_insn "indirect_jump"
- - [(set (pc) (match_operand:SI 0 "register_operand" "r"))]
- + [(set (pc) (match_operand:SI 0 "register_operand" "c"))]
- ""
- "jmp\\t%0"
- [(set_attr "type" "control")])
- @@ -811,7 +811,7 @@
-
- (define_insn "*tablejump"
- [(set (pc)
- - (match_operand:SI 0 "register_operand" "r"))
- + (match_operand:SI 0 "register_operand" "c"))
- (use (label_ref (match_operand 1 "" "")))]
- ""
- "jmp\\t%0"
- --
- 2.5.5
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