From: Hans-Peter Nilsson <hp@axis.com>
Date: Fri, 28 Apr 2023 22:12:39 +0000 (+0200)
Subject: CRIS: Fix ccmode typo in cris_postdbr_cmpelim
X-Git-Tag: basepoints/gcc-15~9494
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=46f9d150c712e70c41aed7293058a75e55c8300f;p=thirdparty%2Fgcc.git

CRIS: Fix ccmode typo in cris_postdbr_cmpelim

Typo spotted while doing CCmode improvements, as a missed
optimization.  It's almost visible from the patch context;
there's not much done in terms of "mode-adjustment" when
replacing (reg:CC CRIS_CC0_REGNUM) with a copy!
This bug affects functions in the newlib printf-formatting
functions (nothing else in libgcc or newlib libc), with the
performance impact on coremark scores being less than 1e-6
(3/5078992 cycles, 6/48543 bytes).

	* config/cris/cris.cc (cris_postdbr_cmpelim): Correct mode
	of modeadjusted_dccr.
---

diff --git a/gcc/config/cris/cris.cc b/gcc/config/cris/cris.cc
index 1c7289b027b8..7fca2af085a7 100644
--- a/gcc/config/cris/cris.cc
+++ b/gcc/config/cris/cris.cc
@@ -433,7 +433,7 @@ cris_postdbr_cmpelim ()
 		  machine_mode ccmode = GET_MODE (src);
 		  rtx modeadjusted_dccr
 		    = (ccmode == CCmode ? dccr
-		       : gen_rtx_REG (CCmode, CRIS_CC0_REGNUM));
+		       : gen_rtx_REG (ccmode, CRIS_CC0_REGNUM));
 		  rtx compare
 		    /* We don't need to copy_rtx pat: we're going to
 		       delete that insn. */