aarch64: Reintroduce FLAG_AUTO_FP

The flag now known as FLAG_QUIET is an odd-one-out in that it
removes side-effects rather than adding them.  This patch inverts
it and gives it the old name FLAG_AUTO_FP.  FLAG_QUIET now means
"no flags" instead.

gcc/
	* config/aarch64/aarch64-builtins.cc (FLAG_QUIET): Redefine to 0,
	replacing the old flag with...
	(FLAG_AUTO_FP): ...this.
	(FLAG_DEFAULT): Redefine to FLAG_AUTO_FP.
	(aarch64_call_properties): Update accordingly.

diff --git a/gcc/config/aarch64/aarch64-builtins.cc b/gcc/config/aarch64/aarch64-builtins.cc
index eb44580bd9cbecd836b8a22882932163ca30aef3..f528592a17d808d7608cb78de2ccd3ed227bfc42 100644 (file)
--- a/gcc/config/aarch64/aarch64-builtins.cc
+++ b/gcc/config/aarch64/aarch64-builtins.cc
@@ -193,22 +193,23 @@ using namespace aarch64;
 #define SIMD_MAX_BUILTIN_ARGS 5
 
 /* Flags that describe what a function might do.  */
-const unsigned int FLAG_DEFAULT = 0U;
 const unsigned int FLAG_READ_FPCR = 1U << 0;
 const unsigned int FLAG_RAISE_FP_EXCEPTIONS = 1U << 1;
 const unsigned int FLAG_READ_MEMORY = 1U << 2;
 const unsigned int FLAG_PREFETCH_MEMORY = 1U << 3;
 const unsigned int FLAG_WRITE_MEMORY = 1U << 4;
 
-/* Not all FP intrinsics raise FP exceptions or read FPCR register,
-   use this flag to suppress it.  */
-const unsigned int FLAG_QUIET = 1U << 5;
+/* Indicates that READ_FPCR and RAISE_FP_EXCEPTIONS should be set for
+   floating-point modes but not for integer modes.  */
+const unsigned int FLAG_AUTO_FP = 1U << 5;
 
+const unsigned int FLAG_QUIET = 0;
+const unsigned int FLAG_DEFAULT = FLAG_AUTO_FP;
 const unsigned int FLAG_FP = FLAG_READ_FPCR | FLAG_RAISE_FP_EXCEPTIONS;
 const unsigned int FLAG_ALL = FLAG_READ_FPCR | FLAG_RAISE_FP_EXCEPTIONS
   | FLAG_READ_MEMORY | FLAG_PREFETCH_MEMORY | FLAG_WRITE_MEMORY;
-const unsigned int FLAG_STORE = FLAG_WRITE_MEMORY | FLAG_QUIET;
-const unsigned int FLAG_LOAD = FLAG_READ_MEMORY | FLAG_QUIET;
+const unsigned int FLAG_STORE = FLAG_WRITE_MEMORY;
+const unsigned int FLAG_LOAD = FLAG_READ_MEMORY;
 
 typedef struct
 {
@@ -1322,7 +1323,7 @@ aarch64_init_simd_builtin_scalar_types (void)
 static unsigned int
 aarch64_call_properties (unsigned int flags, machine_mode mode)
 {
-  if (!(flags & FLAG_QUIET) && FLOAT_MODE_P (mode))
+  if ((flags & FLAG_AUTO_FP) && FLOAT_MODE_P (mode))
     flags |= FLAG_FP;
 
   /* -fno-trapping-math means that we can assume any FP exceptions