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except.c: Revert change of 2004-05-26.

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* except.c: Revert change of 2004-05-26.
	* config/i386/i386.md: Revert change of 2004-05-27.

From-SVN: r82349
This commit is contained in:
Bryce McKinlay 2004-05-28 01:14:02 +00:00 • committed by Bryce McKinlay
parent 431b736152
commit aed3065793
3 changed files with 12 additions and 18 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-05-27 Bryce McKinlay <mckinlay@redhat.com>
* except.c: Revert change of 2004-05-26.
* config/i386/i386.md: Revert change of 2004-05-27.
2004-05-27 Bryce McKinlay <mckinlay@redhat.com>
* configure.ac: Remove --enable-tree-browser option.

20
gcc/config/i386/i386.md
View file

@ -137,12 +137,11 @@
; REP instruction
(UNSPEC_REP 75)
(UNSPEC_EH_RETURN 76)
])
(define_constants
[(UNSPECV_BLOCKAGE 0)
(UNSPECV_EH_RETURN 13)
(UNSPECV_EMMS 31)
(UNSPECV_LDMXCSR 37)
(UNSPECV_STMXCSR 40)
@ -13881,7 +13880,6 @@
""
{
rtx tmp, sa = EH_RETURN_STACKADJ_RTX, ra = operands[0];
rtx jmp;
/* Tricky bit: we write the address of the handler to which we will
be returning into someone else's stack frame, one word below the
@ -13892,19 +13890,16 @@
emit_move_insn (tmp, ra);
if (Pmode == SImode)
jmp = emit_jump_insn (gen_eh_return_si (sa));
emit_insn (gen_eh_return_si (sa));
else
jmp = emit_jump_insn (gen_eh_return_di (sa));
REG_NOTES (jmp) = alloc_EXPR_LIST (REG_NON_LOCAL_GOTO, const0_rtx,
REG_NOTES (jmp));
emit_insn (gen_eh_return_di (sa));
emit_barrier ();
DONE;
})
(define_insn_and_split "eh_return_si"
[(set (pc)
(unspec [(match_operand:SI 0 "register_operand" "c")]
UNSPEC_EH_RETURN))]
[(unspec_volatile [(match_operand:SI 0 "register_operand" "c")]
UNSPECV_EH_RETURN)]
"!TARGET_64BIT"
"#"
"reload_completed"
@ -13912,9 +13907,8 @@
"ix86_expand_epilogue (2); DONE;")
(define_insn_and_split "eh_return_di"
[(set (pc)
(unspec [(match_operand:DI 0 "register_operand" "c")]
UNSPEC_EH_RETURN))]
[(unspec_volatile [(match_operand:DI 0 "register_operand" "c")]
UNSPECV_EH_RETURN)]
"TARGET_64BIT"
"#"
"reload_completed"

5
gcc/except.c
View file

@ -3145,11 +3145,6 @@ can_throw_internal (rtx insn)
return false;
}
if (GET_CODE (insn) == JUMP_INSN
&& GET_CODE (PATTERN (insn)) == RESX
&& XINT (PATTERN (insn), 0) > 0)
return can_throw_internal_1 (XINT (PATTERN (insn), 0));
/* Every insn that might throw has an EH_REGION note. */
note = find_reg_note (insn, REG_EH_REGION, NULL_RTX);
if (!note || INTVAL (XEXP (note, 0)) <= 0)