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re PR rtl-optimization/63620 (RELOAD lost SET_GOT dependency on Darwin)

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PR target/63620
	* config/i386/i386.md (*pushtf): Allow only CONST_DOUBLES that won't
	be reloaded through memory.
	(*pushxf): Ditto.
	(*pushdf): Ditto.

From-SVN: r216987
This commit is contained in:
Uros Bizjak 2014-10-31 20:47:36 +01:00 committed by Uros Bizjak
parent 73c49bf53a
commit 9ccb17b4c4
2 changed files with 24 additions and 3 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2014-10-31 Uros Bizjak <ubizjak@gmail.com>
PR target/63620
* config/i386/i386.md (*pushtf): Allow only CONST_DOUBLES that won't
be reloaded through memory.
(*pushxf): Ditto.
(*pushdf): Ditto.
2014-10-31 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/63659

19
gcc/config/i386/i386.md
View File

@ -2733,10 +2733,14 @@
;; Floating point push instructions.
;; %%% Remove CONST_DOUBLE workaround after PR63620 is fixed!
(define_insn "*pushtf"
[(set (match_operand:TF 0 "push_operand" "=<,<")
(match_operand:TF 1 "general_no_elim_operand" "x,*roF"))]
"TARGET_64BIT || TARGET_SSE"
"(TARGET_64BIT || TARGET_SSE)
&& (!can_create_pseudo_p ()
|| GET_CODE (operands[1]) != CONST_DOUBLE
|| standard_sse_constant_p (operands[1]))"
{
/* This insn should be already split before reg-stack. */
gcc_unreachable ();
@ -2758,10 +2762,13 @@
operands[0] = replace_equiv_address (operands[0], stack_pointer_rtx);
})
;; %%% Remove CONST_DOUBLE workaround after PR63620 is fixed!
(define_insn "*pushxf"
[(set (match_operand:XF 0 "push_operand" "=<,<")
(match_operand:XF 1 "general_no_elim_operand" "f,Yx*roF"))]
""
"!can_create_pseudo_p ()
|| GET_CODE (operands[1]) != CONST_DOUBLE
|| standard_80387_constant_p (operands[1]) > 0"
{
/* This insn should be already split before reg-stack. */
gcc_unreachable ();
@ -2789,10 +2796,16 @@
operands[0] = replace_equiv_address (operands[0], stack_pointer_rtx);
})
;; %%% Remove CONST_DOUBLE workaround after PR63620 is fixed!
(define_insn "*pushdf"
[(set (match_operand:DF 0 "push_operand" "=<,<,<,<")
(match_operand:DF 1 "general_no_elim_operand" "f,Yd*roF,rmF,x"))]
""
"!can_create_pseudo_p ()
|| GET_CODE (operands[1]) != CONST_DOUBLE
|| (!(TARGET_SSE2 && TARGET_SSE_MATH)
&& standard_80387_constant_p (operands[1]) > 0)
|| (TARGET_SSE2 && TARGET_SSE_MATH
&& standard_sse_constant_p (operands[1]))"
{
/* This insn should be already split before reg-stack. */
gcc_unreachable ();