f25df488d7
This change introduces newer ARC toolchain in Buildroot. That new arc-2015.12 release doesn't bring any significant changes but mostly is focused on fixes and minor improvements here and there. Most noticeable changes are: * GCC: Source update to v4.8.5 * GDB: Updated to upstream 7.10 release. You may find more info on fixes and improvements in that release at: https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/tag/arc-2015.12 Signed-off-by: Lada Trimasova <ltrimas@synopsys.com> Cc: Alexey Brodkin <abrodkin@synopsys.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
84 lines
2.2 KiB
Diff
84 lines
2.2 KiB
Diff
From f00b0f17d6889d811468c2c77508fbea8bfc377d Mon Sep 17 00:00:00 2001
|
|
From: Claudiu Zissulescu <claziss@synopsys.com>
|
|
Date: Tue, 19 Jan 2016 14:40:16 +0100
|
|
Subject: [PATCH] UPDATE1: Fix handling complex PIC moves.
|
|
|
|
The arc_legitimate_pc_offset_p condition is too lax. Updated it.
|
|
|
|
The fix is done in development tree: [arc-4.8-dev f00b0f1]
|
|
and will be a part of the next release of ARC GNU tools.
|
|
Once that new release happens this patch must be removed.
|
|
|
|
gcc/
|
|
2016-01-18 Claudiu Zissulescu <claziss@synopsys.com>
|
|
|
|
* config/arc/arc.c (arc_needs_pcl_p ): New function
|
|
(arc_legitimate_pc_offset_p): Use arc_needs_pcl_p.
|
|
---
|
|
gcc/config/arc/arc.c | 42 ++++++++++++++++++++++++++++++++++++++++--
|
|
1 file changed, 40 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
|
|
index f7cae9f..18d88a3 100644
|
|
--- a/gcc/config/arc/arc.c
|
|
+++ b/gcc/config/arc/arc.c
|
|
@@ -5234,6 +5234,45 @@ arc_rtx_costs (rtx x, int code, int outer_code, int opno ATTRIBUTE_UNUSED,
|
|
}
|
|
}
|
|
|
|
+/* Helper used by arc_legitimate_pc_offset_p. */
|
|
+
|
|
+static bool
|
|
+arc_needs_pcl_p (rtx x)
|
|
+{
|
|
+ register const char *fmt;
|
|
+ register int i, j;
|
|
+
|
|
+ if ((GET_CODE (x) == UNSPEC)
|
|
+ && (XVECLEN (x, 0) == 1)
|
|
+ && (GET_CODE (XVECEXP (x, 0, 0)) == SYMBOL_REF))
|
|
+ switch (XINT (x, 1))
|
|
+ {
|
|
+ case ARC_UNSPEC_GOT:
|
|
+ case ARC_UNSPEC_GOTOFFPC:
|
|
+ case UNSPEC_TLS_GD:
|
|
+ case UNSPEC_TLS_IE:
|
|
+ return true;
|
|
+ default:
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ fmt = GET_RTX_FORMAT (GET_CODE (x));
|
|
+ for (i = GET_RTX_LENGTH (GET_CODE (x)) - 1; i >= 0; i--)
|
|
+ {
|
|
+ if (fmt[i] == 'e')
|
|
+ {
|
|
+ if (arc_needs_pcl_p (XEXP (x, i)))
|
|
+ return true;
|
|
+ }
|
|
+ else if (fmt[i] == 'E')
|
|
+ for (j = XVECLEN (x, i) - 1; j >= 0; j--)
|
|
+ if (arc_needs_pcl_p (XVECEXP (x, i, j)))
|
|
+ return true;
|
|
+ }
|
|
+
|
|
+ return false;
|
|
+}
|
|
+
|
|
/* Return true if ADDR is an address that needs to be expressed as an
|
|
explicit sum of pcl + offset. */
|
|
|
|
@@ -5242,8 +5281,7 @@ arc_legitimate_pc_offset_p (rtx addr)
|
|
{
|
|
if (GET_CODE (addr) != CONST)
|
|
return false;
|
|
- addr = XEXP (addr, 0);
|
|
- return flag_pic && !arc_raw_symbolic_reference_mentioned_p (addr, false);
|
|
+ return arc_needs_pcl_p (addr);
|
|
}
|
|
|
|
/* Return true if ADDR is a valid pic address.
|
|
--
|
|
2.5.0
|
|
|