Module Name: src
Committed By: nakayama
Date: Fri Apr 5 12:15:41 UTC 2019
Modified Files:
src/sys/arch/sparc64/include: psl.h
Log Message:
Put "memory" to asm inline reading privilege registers for clang to
prevent it from being removed by excessive optimization.
To generate a diff of this commit:
cvs rdiff -u -r1.58 -r1.59 src/sys/arch/sparc64/include/psl.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/sparc64/include/psl.h
diff -u src/sys/arch/sparc64/include/psl.h:1.58 src/sys/arch/sparc64/include/psl.h:1.59
--- src/sys/arch/sparc64/include/psl.h:1.58 Fri Feb 8 20:09:24 2019
+++ src/sys/arch/sparc64/include/psl.h Fri Apr 5 12:15:41 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: psl.h,v 1.58 2019/02/08 20:09:24 palle Exp $ */
+/* $NetBSD: psl.h,v 1.59 2019/04/05 12:15:41 nakayama Exp $ */
/*
* Copyright (c) 1992, 1993
@@ -292,8 +292,9 @@
* Put "memory" to asm inline on sun4v to avoid issuing rdpr %ver
* before checking cputyp as a result of code moving by compiler
* optimization.
+ * For clang, to prevent it from being removed by optimization.
*/
-#ifdef SUN4V
+#if defined(SUN4V) || defined(__clang__)
#define constasm_clobbers "memory"
#else
#define constasm_clobbers
