diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1906845ed58e024ac6561f02adbc2c39afb4fce4..2bb07a570233ea219646633440afb31683ce0795 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2015-05-13 Ilya Enkovich <ilya.enkovich@intel.com> + + PR target/65103 + * config/i386/i386.c (ix86_rtx_costs): We want to propagate + link time constants into adress expressions and therefore set + their cost to 0. + 2015-05-13 Jakub Jelinek <jakub@redhat.com> PR target/66112 diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index bda32570d54000d2f23193831c80965d28d287dc..de333d88a880cdfb9885e2fc2fe07535c1f7ac8e 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -42006,7 +42006,9 @@ ix86_rtx_costs (rtx x, int code_i, int outer_code_i, int opno, int *total, && !(TARGET_64BIT && (GET_CODE (x) == LABEL_REF || (GET_CODE (x) == SYMBOL_REF - && SYMBOL_REF_LOCAL_P (x))))) + && SYMBOL_REF_LOCAL_P (x)))) + /* Use 0 cost for CONST to improve its propagation. */ + && (TARGET_64BIT || GET_CODE (x) != CONST)) *total = 1; else *total = 0; diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0f6b188e15f59ed4584a9408057e585a390ac00a..b5f96f3693ad6f057987c04535968d52c01d1535 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2015-05-13 Ilya Enkovich <ilya.enkovich@intel.com> + + PR target/65103 + * gcc.target/i386/pr65103-3.c: New. + 2015-05-13 Martin Liska <mliska@suse.cz> * g++.dg/ipa/pr65557.C: Remove unnecessary dump flag. diff --git a/gcc/testsuite/gcc.target/i386/pr65103-3.c b/gcc/testsuite/gcc.target/i386/pr65103-3.c new file mode 100644 index 0000000000000000000000000000000000000000..eddf20bc04be3d6410799eff15435a246d6f539a --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr65103-3.c @@ -0,0 +1,19 @@ +/* { dg-do compile { target ia32 } } */ +/* { dg-require-effective-target pie } */ +/* { dg-options "-O2 -fPIE" } */ +/* { dg-final { scan-assembler-not "GOTOFF," } } */ + +static int *data[100]; + +void test (long a, long b) +{ + do + { + if( a < b ) + { + data[a] = data[b]; + a++; + } + } + while (a <= b); +}