From: Christoph Müllner <christoph.muellner@vrull.eu>
Date: Fri, 8 Sep 2023 06:19:32 +0000 (+0200)
Subject: riscv: bitmanip: Remove duplicate zero_extendhi<GPR:mode>2 pattern
X-Git-Tag: basepoints/gcc-15~6338
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c37fef39fa0a8f77ea4fc67d1bbf5067d4bddb9;p=thirdparty%2Fgcc.git

riscv: bitmanip: Remove duplicate zero_extendhi<GPR:mode>2 pattern

We currently have two identical zero_extendhi<GPR:mode>2 patterns:
* '*zero_extendhi<GPR:mode>2_zbb'
* '*zero_extendhi<GPR:mode>2_bitmanip'

This patch removes the *_zbb pattern and ensures that all sign- and
zero-extensions use the postfix '_bitmanip'.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>

gcc/ChangeLog:

	* config/riscv/bitmanip.md (*extend<SHORT:mode><SUPERQI:mode>2_zbb):
	Rename postfix to _bitmanip.
	(*extend<SHORT:mode><SUPERQI:mode>2_bitmanip): Renamed pattern.
	(*zero_extendhi<GPR:mode>2_zbb): Remove duplicated pattern.
---

diff --git a/gcc/config/riscv/bitmanip.md b/gcc/config/riscv/bitmanip.md
index 1544ef4e1252..431b32922135 100644
--- a/gcc/config/riscv/bitmanip.md
+++ b/gcc/config/riscv/bitmanip.md
@@ -283,7 +283,7 @@
   [(set_attr "type" "bitmanip,load")
    (set_attr "mode" "<GPR:MODE>")])
 
-(define_insn "*extend<SHORT:mode><SUPERQI:mode>2_zbb"
+(define_insn "*extend<SHORT:mode><SUPERQI:mode>2_bitmanip"
   [(set (match_operand:SUPERQI   0 "register_operand"     "=r,r")
 	(sign_extend:SUPERQI
 	    (match_operand:SHORT 1 "nonimmediate_operand" " r,m")))]
@@ -294,17 +294,6 @@
   [(set_attr "type" "bitmanip,load")
    (set_attr "mode" "<SUPERQI:MODE>")])
 
-(define_insn "*zero_extendhi<GPR:mode>2_zbb"
-  [(set (match_operand:GPR    0 "register_operand"     "=r,r")
-	(zero_extend:GPR
-	    (match_operand:HI 1 "nonimmediate_operand" " r,m")))]
-  "TARGET_ZBB"
-  "@
-   zext.h\t%0,%1
-   lhu\t%0,%1"
-  [(set_attr "type" "bitmanip,load")
-   (set_attr "mode" "HI")])
-
 (define_expand "rotrdi3"
   [(set (match_operand:DI 0 "register_operand")
 	(rotatert:DI (match_operand:DI 1 "register_operand")