From: Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
Date: Sun, 24 Aug 2025 21:27:43 +0000 (+0900)
Subject: xtensa: Simplify "*masktrue_const_bitcmpl" insn pattern
X-Git-Tag: basepoints/gcc-17~5433
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b11ee352ca75fb33c1679d07f706b98fa6bb9ce4;p=thirdparty%2Fgcc.git

xtensa: Simplify "*masktrue_const_bitcmpl" insn pattern

gcc/ChangeLog:

	* config/xtensa/xtensa.md
	(The auxiliary define_split for *masktrue_const_bitcmpl):
	Use a more concise function call, i.e.,
	(1 << GET_MODE_BITSIZE (mode)) - 1 is equivalent to
	GET_MODE_MASK (mode).
---

diff --git a/gcc/config/xtensa/xtensa.md b/gcc/config/xtensa/xtensa.md
index 4a02a6efe51..64a4fafa31b 100644
--- a/gcc/config/xtensa/xtensa.md
+++ b/gcc/config/xtensa/xtensa.md
@@ -2177,7 +2177,7 @@
 		      (label_ref (match_dup 1))
 		      (pc)))]
 {
-  operands[3] = GEN_INT ((1 << GET_MODE_BITSIZE (GET_MODE (operands[3]))) - 1);
+  operands[3] = GEN_INT (GET_MODE_MASK (GET_MODE (operands[3])));
 })
 
 (define_insn_and_split "*masktrue_const_pow2_minus_one"