i386.h (CONDITIONAL_REGISTER_USAGE): Store result of PIC_OFFSET_TABLE_REGNUM in tempo...

2007-01-19  Dirk Mueller  <dmueller@suse.de>

       * config/i386.h (CONDITIONAL_REGISTER_USAGE): Store
       result of PIC_OFFSET_TABLE_REGNUM in temporary variable to avoid
       duplicate evaluation.

From-SVN: r120967

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4ef531ab020f3027ecf50e6507fff4300ccd2281..3f7d96e6fd0422b7a7f1120c54093605e2a1cc07 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2007-01-19  Dirk Mueller  <dmueller@suse.de>
+
+       * config/i386.h (CONDITIONAL_REGISTER_USAGE): Store
+       result of PIC_OFFSET_TABLE_REGNUM in temporary variable to avoid
+       duplicate evaluation.
+
 2007-01-19  Uros Bizjak  <ubizjak@gmail.com>
 
        * config/i386/i386.md (acos<mode>2): Rename from acossf2 and acosdf2.

diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h
index 7ccecafd9eb62eb370b6997bb7868b2d83c2c787..19dabcc630a0b5bb64c6d0e43dfbb30b211d9adf 100644 (file)
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -854,6 +854,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
 #define CONDITIONAL_REGISTER_USAGE                                     \
 do {                                                                   \
     int i;                                                             \
+    unsigned int j;                                                    \
     for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)                                \
       {                                                                        \
        if (fixed_regs[i] > 1)                                          \
@@ -862,10 +863,11 @@ do {                                                                      \
          call_used_regs[i] = (call_used_regs[i]                        \
                               == (TARGET_64BIT ? 3 : 2));              \
       }                                                                        \
-    if (PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM)                     \
+    j = PIC_OFFSET_TABLE_REGNUM;                                       \
+    if (j != INVALID_REGNUM)                   \
       {                                                                        \
-       fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;                        \
-       call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1;                    \
+       fixed_regs[j] = 1;                      \
+       call_used_regs[j] = 1;                  \
       }                                                                        \
     if (! TARGET_MMX)                                                  \
       {                                                                        \