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| author | Ilya Enkovich <ilya.enkovich@intel.com> | 2015-05-13 08:29:14 +0000 |
|---|---|---|
| committer | Ilya Enkovich <ienkovich@gcc.gnu.org> | 2015-05-13 08:29:14 +0000 |
| commit | 7947dd0bdf9cfe2a704355b1e5d7c7f786c67b9b (patch) | |
| tree | b20f108b8c558f2565a2e59340297658b4211432 | |
| parent | f27127ceddb656b988c21da5f3ef9fa8a7f44afe (diff) | |
| download | gcc-7947dd0bdf9cfe2a704355b1e5d7c7f786c67b9b.tar.gz | |
re PR target/65103 ([i386] GOTOFF relocation is not propagated into address expression)
gcc/
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.
gcc/testsuite/
PR target/65103
* gcc.target/i386/pr65103-3.c: New.
From-SVN: r223119
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr65103-3.c | 19 |
4 files changed, 34 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 1906845ed58..2bb07a57023 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 bda32570d54..de333d88a88 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 0f6b188e15f..b5f96f3693a 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 00000000000..eddf20bc04b --- /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); +} |