[mono] fallback to scalar operation for ExtractMostSignificantBits (#117276)

saitama951 · web-flow · commit 9c3fe895f281 · 2025-07-21T10:39:11.000+02:00
Add a scalar fallback for ExtractMostSignificantBits related to 8dcc633#r2167007340
diff --git a/src/mono/mono/mini/simd-intrinsics.c b/src/mono/mono/mini/simd-intrinsics.c
@@ -2517,6 +2517,7 @@ emit_sri_vector (MonoCompile *cfg, MonoMethod *cmethod, MonoMethodSignature *fsi
 
 		return emit_simd_ins_for_sig (cfg, klass, OP_SSE_MOVMSK, -1, type, fsig, args);
 #endif
+		return NULL;
 	}
 	case SN_GetElement: {
 		int elems;

Original file line number	Diff line number	Diff line change
`@@ -2517,6 +2517,7 @@ emit_sri_vector (MonoCompile cfg, MonoMethod cmethod, MonoMethodSignature *fsi`
`2517`	`2517`
`2518`	`2518`	`return emit_simd_ins_for_sig (cfg, klass, OP_SSE_MOVMSK, -1, type, fsig, args);`
`2519`	`2519`	`#endif`
	`2520`	`+ return NULL;`
`2520`	`2521`	`}`
`2521`	`2522`	`case SN_GetElement: {`
`2522`	`2523`	`int elems;`