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riscv-gcc-1
Commit 172890a2 by Richard Kenner Committed by Richard Kenner
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gcse.c (hash_scan_set): If cprop, see if REG_EQUAL or REG_EQUIV. 

	* gcse.c (hash_scan_set): If cprop, see if REG_EQUAL or REG_EQUIV.
	Don't CSE a nop.
	(hash_scan_insn): Clean up calls to hash_scan_set.
	(compute_kill_rd): REGNO now unsigned.
	(try_replace_reg): Rework to use simplify_replace_rtx.
	(cprop_jump, cprop_cc0_jump): Likewise.
	(cprop_insn): Call find_reg_equal_equiv_note.
	Reflect changes to cprop_jump and cprop_cc0_jump.

From-SVN: r39774
parent b71e8e84
Showing with 9 additions and 0 deletions
gcc/ChangeLog
......@@ -8,6 +8,15 @@
Fri Feb 16 12:41:30 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* gcse.c (hash_scan_set): If cprop, see if REG_EQUAL or REG_EQUIV.
Don't CSE a nop.
(hash_scan_insn): Clean up calls to hash_scan_set.
(compute_kill_rd): REGNO now unsigned.
(try_replace_reg): Rework to use simplify_replace_rtx.
(cprop_jump, cprop_cc0_jump): Likewise.
(cprop_insn): Call find_reg_equal_equiv_note.
Reflect changes to cprop_jump and cprop_cc0_jump.
* recog.c (validate_replace_rtx): Replace in operands of
ZERO_EXTRACT in SET_DEST.
......
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