[gcc r13-1153] RISC-V: Supress warning for comparison of integer expressions of different signedness

[gcc r13-1153] RISC-V: Supress warning for comparison of integer expressions of different signedness

[Kito Cheng]

https://gcc.gnu.org/g:d6b423882a05d7b4f40ae1e9d942c9c4c13761b7

commit r13-1153-gd6b423882a05d7b4f40ae1e9d942c9c4c13761b7
Author: Kito Cheng <kito.cheng@sifive.com>
Date:   Fri Jun 17 21:57:35 2022 +0800

    RISC-V: Supress warning for comparison of integer expressions of different signedness
    
    gcc/ChangeLog:
    
            * config/riscv/bitmanip.md: Supress warning.

Diff:
---
 gcc/config/riscv/bitmanip.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/riscv/bitmanip.md b/gcc/config/riscv/bitmanip.md
index 6c1ccc6f8c5..d1570ce8508 100644
--- a/gcc/config/riscv/bitmanip.md
+++ b/gcc/config/riscv/bitmanip.md
@@ -102,7 +102,7 @@
 {
 	unsigned HOST_WIDE_INT mask = UINTVAL (operands[3]);
 	/* scale: shift within the sh[123]add.uw */
-	int scale = 32 - clz_hwi (mask);
+	unsigned HOST_WIDE_INT scale = 32 - clz_hwi (mask);
 	/* bias:  pre-scale amount (i.e. the prior shift amount) */
 	int bias = ctz_hwi (mask) - scale;