* pa.h (GO_IF_LEGITIMATE_ADDRESS): Only allow immediate addressing

        using 5 bits to avoid losing with FP loads and stores on page zero.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@7752 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/config/pa/pa.h b/gcc/config/pa/pa.h
index 2991f4f..ed20c28 100644 (file)
--- a/gcc/config/pa/pa.h
+++ b/gcc/config/pa/pa.h
@@ -1268,7 +1268,11 @@ extern union tree_node *current_function_decl;
    REG+REG, REG+(REG*SCALE) or REG+SMALLINT.
    But we can treat a SYMBOL_REF as legitimate if it is part of this
    function's constant-pool, because such addresses can actually
-   be output as REG+SMALLINT.  */
+   be output as REG+SMALLINT. 
+
+   Note we only allow 5 bit immediates for access to a constant address;
+   doing so avoids losing for loading/storing a FP register at an address
+   which will not fit in 5 bits.  */
 
 #define VAL_5_BITS_P(X) ((unsigned)(X) + 0x10 < 0x20)
 #define INT_5_BITS(X) VAL_5_BITS_P (INTVAL (X))
@@ -1333,7 +1337,7 @@ extern union tree_node *current_function_decl;
     goto ADDR;                                         \
   else if (GET_CODE (X) == LABEL_REF                   \
           || (GET_CODE (X) == CONST_INT                \
-              && INT_14_BITS (X)))                     \
+              && INT_5_BITS (X)))                      \
     goto ADDR;                                         \
 }
 \f