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[SH,committed] Fix PR 101177

Message ID a4166c42bfd41cdc80f1a8fed0ec9096081ea095.camel@t-online.de
State New
Headers show
Series [SH,committed] Fix PR 101177 | expand

Commit Message

Oleg Endo Oct. 20, 2023, 10:40 a.m. UTC 
The attached patch fixes PR 101177.

Committed to master, cherry-picked to GCC-13, GCC-12 and GCC-11.
Sanity tested with 'make all-gcc'.

Cheers,
Oleg

gcc/ChangeLog:

	PR target/101177
	* config/sh/sh.md (unnamed split pattern): Fix comparison of
	find_regno_note result.
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Patch

From 3ce4e99303d01d348229cca22bf8d3dd63004e01 Mon Sep 17 00:00:00 2001
From: Oleg Endo <olegendo@gcc.gnu.org>
Date: Fri, 20 Oct 2023 18:48:34 +0900
Subject: [PATCH] SH: Fix PR 101177

Fix accidentally inverted comparison.

gcc/ChangeLog:

	PR target/101177
	* config/sh/sh.md (unnamed split pattern): Fix comparison of
	find_regno_note result.
---
 gcc/config/sh/sh.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/sh/sh.md b/gcc/config/sh/sh.md
index 76e7774..93374c6 100644
--- a/gcc/config/sh/sh.md
+++ b/gcc/config/sh/sh.md
@@ -841,9 +841,9 @@ 
   rtx reg = operands[0];
   if (SUBREG_P (reg))
     reg = SUBREG_REG (reg);
   gcc_assert (REG_P (reg));
-  if (find_regno_note (curr_insn, REG_DEAD, REGNO (reg)) != NULL_RTX)
+  if (find_regno_note (curr_insn, REG_DEAD, REGNO (reg)) == NULL_RTX)
     FAIL;
 
   /* FIXME: Maybe also search the predecessor basic blocks to catch
      more cases.  */
--
libgit2 1.3.2