diff options
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 47dd7a0..19d664b 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -38,6 +38,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "toplev.h" #include "output.h" #include "ggc.h" +#include "target.h" /* Simplification and canonicalization of RTL. */ @@ -106,13 +107,36 @@ rtx avoid_constant_pool_reference (x) rtx x; { - rtx c, addr; + rtx c, tmp, addr; enum machine_mode cmode; - if (GET_CODE (x) != MEM) - return x; + switch (GET_CODE (x)) + { + case MEM: + break; + + case FLOAT_EXTEND: + /* Handle float extensions of constant pool references. */ + tmp = XEXP (x, 0); + c = avoid_constant_pool_reference (tmp); + if (c != tmp && GET_CODE (c) == CONST_DOUBLE) + { + REAL_VALUE_TYPE d; + + REAL_VALUE_FROM_CONST_DOUBLE (d, c); + return CONST_DOUBLE_FROM_REAL_VALUE (d, GET_MODE (x)); + } + return x; + + default: + return x; + } + addr = XEXP (x, 0); + /* Call target hook to avoid the effects of -fpic etc... */ + addr = (*targetm.delegitimize_address) (addr); + if (GET_CODE (addr) == LO_SUM) addr = XEXP (addr, 1); |