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 1544ef4e1252126b3eb94dec76319ae197b19e00..431b32922135316be24400d199d75f0b05795ce7 100644 (file)
--- 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")