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Linking errors with -O3 -march=core-avx2.
eg. _randommodule.o: could not read symbols: Bad value
https://bugs.gentoo.org/475482
http://gcc.gnu.org/PR57777
---
commit 3c8f20477b88e933610f6141d99c3927f9733445
Author: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed Jul 3 20:24:19 2013 +0000
PR target/57777
* config/i386/predicates.md (vsib_address_operand): Disallow
SYMBOL_REF or LABEL_REF in parts.disp if TARGET_64BIT && flag_pic.
* gcc.target/i386/pr57777.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_8-branch@200650 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 6 ++++++
gcc/config/i386/predicates.md | 13 +++++++++++--
gcc/testsuite/ChangeLog | 3 +++
gcc/testsuite/gcc.target/i386/pr57777.c | 13 +++++++++++++
4 files changed, 33 insertions(+), 2 deletions(-)
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -835,9 +835,12 @@
return false;
/* VSIB addressing doesn't support (%rip). */
- if (parts.disp && GET_CODE (parts.disp) == CONST)
+ if (parts.disp)
+ {
+ disp = parts.disp;
+ if (GET_CODE (disp) == CONST)
{
- disp = XEXP (parts.disp, 0);
+ disp = XEXP (disp, 0);
if (GET_CODE (disp) == PLUS)
disp = XEXP (disp, 0);
if (GET_CODE (disp) == UNSPEC)
@@ -849,6 +852,12 @@
return false;
}
}
+ if (TARGET_64BIT
+ && flag_pic
+ && (GET_CODE (disp) == SYMBOL_REF
+ || GET_CODE (disp) == LABEL_REF))
+ return false;
+ }
return true;
})
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr57777.c
@@ -0,0 +1,13 @@
+/* PR target/57777 */
+/* { dg-do assemble { target avx2 } } */
+/* { dg-options "-O3 -mavx2" } */
+/* { dg-additional-options "-fpic" { target fpic } } */
+
+void
+foo (unsigned long *x, int *y)
+{
+ static unsigned long b[2] = { 0x0UL, 0x9908b0dfUL };
+ int c;
+ for (c = 0; c < 512; c++)
+ x[c] = b[x[c] & 1UL];
+}
|
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