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| author | Richard Earnshaw <rearnsha@arm.com> | 1998-09-19 07:57:44 +0000 |
|---|---|---|
| committer | Richard Earnshaw <rearnsha@gcc.gnu.org> | 1998-09-19 07:57:44 +0000 |
| commit | 9c8cc54f26b2b0b7fedf7029b9b8702bddac2635 (patch) | |
| tree | 0d2d5a15724833ebde59a1a201e04441d1b90528 | |
| parent | 332072dbd12841f96ec5f6a5048777a8d7ad266d (diff) | |
| download | gcc-9c8cc54f26b2b0b7fedf7029b9b8702bddac2635.zip gcc-9c8cc54f26b2b0b7fedf7029b9b8702bddac2635.tar.gz gcc-9c8cc54f26b2b0b7fedf7029b9b8702bddac2635.tar.bz2 | |
arm.c (bad_signed_byte_operand): Check both arms of a sum in a memory address.
* arm.c (bad_signed_byte_operand): Check both arms of a sum in
a memory address.
* arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle
memory addresses that are not in standard canonical form.
From-SVN: r22478
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 4 | ||||
| -rw-r--r-- | gcc/config/arm/arm.md | 12 |
3 files changed, 20 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9c1bc65..37e4637 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -5,6 +5,11 @@ Sat Sep 19 07:33:36 1998 Richard Earnshaw (rearnsha@arm.com) (arm_reorg): Handle cases where we need the address of an item in the pool. + * arm.c (bad_signed_byte_operand): Check both arms of a sum in + a memory address. + * arm.md (splits for *extendqihi_insn and *extendqisi_insn): Handle + memory addresses that are not in standard canonical form. + Sat Sep 19 01:00:32 1998 Michael Hayes (mph@elec.canterbury.ac.nz) * README.C4X: New file with information about the c4x ports. diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 7c2f9b1..9a808a8 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -1769,7 +1769,9 @@ bad_signed_byte_operand (op, mode) /* A sum of anything more complex than reg + reg or reg + const is bad */ if ((GET_CODE (op) == PLUS || GET_CODE (op) == MINUS) - && ! s_register_operand (XEXP (op, 0), VOIDmode)) + && (! s_register_operand (XEXP (op, 0), VOIDmode) + || (! s_register_operand (XEXP (op, 1), VOIDmode) + && GET_CODE (XEXP (op, 1)) != CONST_INT))) return 1; /* Big constants are also bad */ diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md index 5a313e4..18093c7 100644 --- a/gcc/config/arm/arm.md +++ b/gcc/config/arm/arm.md @@ -2399,6 +2399,12 @@ XEXP (operands[2], 0) = plus_constant (operands[3], low); operands[1] = plus_constant (XEXP (operands[1], 0), offset - low); } + /* Ensure the sum is in correct canonical form */ + else if (GET_CODE (operands[1]) == PLUS + && GET_CODE (XEXP (operands[1], 1)) != CONST_INT + && ! s_register_operand (XEXP (operands[1], 1), VOIDmode)) + operands[1] = gen_rtx (PLUS, GET_MODE (operands[1]), + XEXP (operands[1], 1), XEXP (operands[1], 0)); } ") @@ -2464,6 +2470,12 @@ XEXP (operands[2], 0) = plus_constant (operands[0], low); operands[1] = plus_constant (XEXP (operands[1], 0), offset - low); } + /* Ensure the sum is in correct canonical form */ + else if (GET_CODE (operands[1]) == PLUS + && GET_CODE (XEXP (operands[1], 1)) != CONST_INT + && ! s_register_operand (XEXP (operands[1], 1), VOIDmode)) + operands[1] = gen_rtx (PLUS, GET_MODE (operands[1]), + XEXP (operands[1], 1), XEXP (operands[1], 0)); } ") |