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i386.c (ix86_expand_builtin): Generate reg for readflags built-in when optimizing. 

* config/i386/i386.c (ix86_expand_builtin): Generate
        reg for readflags built-in when optimizing.
        * config/i386/i386.md (*pushfl<mode>): Rename to ...
        (pushfl<mode>2): This. Fix iterator.
        (*popfl<mode>): Rename to ...
        (*popfl<mode>1): This. Fix iterator.

From-SVN: r205707
This commit is contained in:
Kirill Yukhin 2013-12-05 12:20:19 +00:00 committed by Kirill Yukhin
parent 9e36c9ed20
commit 1c0f1f4652
3 changed files with 19 additions and 9 deletions
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11
gcc/ChangeLog
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@ -1,6 +1,15 @@
2013-12-05 Kirill Yukhin <kirill.yukhin@intel.com>
* config/i386/i386.c(IX86_BUILTIN_READ_FLAGS): New.
* config/i386/i386.c (ix86_expand_builtin): Generate
reg for readflags built-in when optimizing.
* config/i386/i386.md (*pushfl<mode>): Rename to ...
(pushfl<mode>2): This. Fix iterator.
(*popfl<mode>): Rename to ...
(*popfl<mode>1): This. Fix iterator.
2013-12-05 Kirill Yukhin <kirill.yukhin@intel.com>
* config/i386/i386.c (IX86_BUILTIN_READ_FLAGS): New.
(IX86_BUILTIN_WRITE_FLAGS): Ditto.
(ix86_init_mmx_sse_builtins): Define
__builtin_ia32_writeeflags_u32, __builtin_ia32_writeeflags_u64,

5
gcc/config/i386/i386.c
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@ -33457,8 +33457,9 @@ addcarryx:
case IX86_BUILTIN_READ_FLAGS:
emit_insn (gen_push (gen_rtx_REG (word_mode, FLAGS_REG)));
if (target == NULL_RTX
|| !register_operand (target, word_mode)
if (optimize
|| target == NULL_RTX
|| !nonimmediate_operand (target, word_mode)
|| GET_MODE (target) != word_mode)
target = gen_reg_rtx (word_mode);

12
gcc/config/i386/i386.md
View File

@ -1722,17 +1722,17 @@
[(set_attr "type" "pop")
(set_attr "mode" "<MODE>")])
(define_insn "*pushfl<mode>"
[(set (match_operand:DWIH 0 "push_operand" "=<")
(match_operand:DWIH 1 "flags_reg_operand"))]
(define_insn "*pushfl<mode>2"
[(set (match_operand:W 0 "push_operand" "=<")
(match_operand:W 1 "flags_reg_operand"))]
""
"pushf{<imodesuffix>}"
[(set_attr "type" "push")
(set_attr "mode" "<MODE>")])
(define_insn "*popfl<mode>"
[(set (match_operand:DWIH 0 "flags_reg_operand")
(match_operand:DWIH 1 "pop_operand" ">"))]
(define_insn "*popfl<mode>1"
[(set (match_operand:W 0 "flags_reg_operand")
(match_operand:W 1 "pop_operand" ">"))]
""
"popf{<imodesuffix>}"
[(set_attr "type" "pop")