From 14d52b90934e332f57abab4a38b7d6088601b4e4 Mon Sep 17 00:00:00 2001
From: David Edelsohn <dje.gcc@gmail.com>
Date: Fri, 1 Feb 2013 14:14:05 +0000
Subject: [PATCH] xcoff.h (ASM_OUTPUT_ALIGNED_COMMON): Use floor_log2.
* config/rs6000/xcoff.h (ASM_OUTPUT_ALIGNED_COMMON): Use floor_log2.
(ASM_OUTPUT_ALIGNED_LOCAL): New.
From-SVN: r195660
---
gcc/ChangeLog | 5 +++++
gcc/config/rs6000/xcoff.h | 22 ++++++++++++++++++++--
2 files changed, 25 insertions(+), 2 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 60394c74e490..8c37f919bb2e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-02-01 David Edelsohn <dje.gcc@gmail.com>
+
+ * config/rs6000/xcoff.h (ASM_OUTPUT_ALIGNED_COMMON): Use floor_log2.
+ (ASM_OUTPUT_ALIGNED_LOCAL): New.
+
2013-02-01 Richard Biener <rguenther@suse.de>
PR tree-optimization/56113
diff --git a/gcc/config/rs6000/xcoff.h b/gcc/config/rs6000/xcoff.h
index bde208f4c79f..512bcb5472e8 100644
--- a/gcc/config/rs6000/xcoff.h
+++ b/gcc/config/rs6000/xcoff.h
@@ -283,7 +283,7 @@
RS6000_OUTPUT_BASENAME ((FILE), (NAME)); \
if ((ALIGN) > 32) \
fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", (SIZE), \
- exact_log2 ((ALIGN) / BITS_PER_UNIT)); \
+ floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
else if ((SIZE) > 4) \
fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",3\n", (SIZE)); \
else \
@@ -292,12 +292,30 @@
/* This says how to output an assembler line
to define a local common symbol.
- Alignment cannot be specified, but we can try to maintain
+ The assembler in AIX 6.1 and later supports an alignment argument.
+ For earlier releases of AIX, we try to maintain
alignment after preceding TOC section if it was aligned
for 64-bit mode. */
#define LOCAL_COMMON_ASM_OP "\t.lcomm "
+#if TARGET_AIX_VERSION >= 61
+#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
+ do { fputs (LOCAL_COMMON_ASM_OP, (FILE)); \
+ RS6000_OUTPUT_BASENAME ((FILE), (NAME)); \
+ if ((ALIGN) > 32) \
+ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%s,%u\n", \
+ (SIZE), xcoff_bss_section_name, \
+ floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
+ else if ((SIZE) > 4) \
+ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%s,3\n", \
+ (SIZE), xcoff_bss_section_name); \
+ else \
+ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%s\n", \
+ (SIZE), xcoff_bss_section_name); \
+ } while (0)
+#endif
+
#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
do { fputs (LOCAL_COMMON_ASM_OP, (FILE)); \
RS6000_OUTPUT_BASENAME ((FILE), (NAME)); \
--
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