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| author | Peter Bergner <bergner@vnet.ibm.com> | 2008-04-07 12:36:59 -0500 |
|---|---|---|
| committer | Peter Bergner <bergner@gcc.gnu.org> | 2008-04-07 12:36:59 -0500 |
| commit | 46b71b0354e0eba0e0b176a80434bb3a953aadb6 (patch) | |
| tree | 1d70b0b5be2385ffac16616696a1ca2968a86039 /gcc/emit-rtl.c | |
| parent | 64ef8953e3507ad5e3f356e4d65a0d7fd9d10355 (diff) | |
| download | gcc-46b71b0354e0eba0e0b176a80434bb3a953aadb6.zip gcc-46b71b0354e0eba0e0b176a80434bb3a953aadb6.tar.gz gcc-46b71b0354e0eba0e0b176a80434bb3a953aadb6.tar.bz2 | |
PR middle-end/PR28690
PR middle-end/PR28690
* rtlanal.c: Update copyright years.
(commutative_operand_precedence): Give SYMBOL_REF's the same precedence
as REG_POINTER and MEM_POINTER operands.
* emit-rtl.c (gen_reg_rtx_and_attrs): New function.
(set_reg_attrs_from_value): Call mark_reg_pointer as appropriate.
* rtl.h (gen_reg_rtx_and_attrs): Add prototype for new function.
* gcse.c: Update copyright years.
(pre_delete): Call gen_reg_rtx_and_attrs.
(hoist_code): Likewise.
(build_store_vectors): Likewise.
(delete_store): Likewise.
* loop-invariant.c (move_invariant_reg): Likewise.
Update copyright years.
From-SVN: r133985
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index fd26d01..2fe9116 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -964,11 +964,32 @@ set_reg_attrs_from_value (rtx reg, rtx x) int offset; offset = byte_lowpart_offset (GET_MODE (reg), GET_MODE (x)); - if (MEM_P (x) && MEM_OFFSET (x) && GET_CODE (MEM_OFFSET (x)) == CONST_INT) - REG_ATTRS (reg) - = get_reg_attrs (MEM_EXPR (x), INTVAL (MEM_OFFSET (x)) + offset); - if (REG_P (x) && REG_ATTRS (x)) - update_reg_offset (reg, x, offset); + if (MEM_P (x)) + { + if (MEM_OFFSET (x) && GET_CODE (MEM_OFFSET (x)) == CONST_INT) + REG_ATTRS (reg) + = get_reg_attrs (MEM_EXPR (x), INTVAL (MEM_OFFSET (x)) + offset); + if (MEM_POINTER (x)) + mark_reg_pointer (reg, MEM_ALIGN (x)); + } + else if (REG_P (x)) + { + if (REG_ATTRS (x)) + update_reg_offset (reg, x, offset); + if (REG_POINTER (x)) + mark_reg_pointer (reg, REGNO_POINTER_ALIGN (REGNO (x))); + } +} + +/* Generate a REG rtx for a new pseudo register, copying the mode + and attributes from X. */ + +rtx +gen_reg_rtx_and_attrs (rtx x) +{ + rtx reg = gen_reg_rtx (GET_MODE (x)); + set_reg_attrs_from_value (reg, x); + return reg; } /* Set the register attributes for registers contained in PARM_RTX. |