[PATCH][AARCH64]PR60034

[Kugan]

Hi all,

Compiling inline asm results in ICE (PR60034). Alignment calculation in
aarch64_classify_address for (symbol_ref:DI ("*.LANCHOR4") [flags
0x182])) seems wrong here.

Fixing this also  caused a regression for pr38151.c, which is due to
complex type being allocated with wrong alignment. Attached patch fixes
these issues.

Regression tested on qemu-aarch64 for aarch64-none-linux-gnu with no new
regressions.

Is this patch OK?

Thanks,
Kugan

gcc/
+2014-02-21  Kugan Vivekanandarajah  <kug...@linaro.org>
+
+       PR target/60034
+       * aarch64/aarch64.c (aarch64_classify_address): Fix alignment for
+       SYMBOL_REF_FLAGS.
+       * aarch64/aarch64.h (DATA_ALIGNMENT):  Fix alignment for COMPLEX_TYPE.
+

gcc/testsuite/
+2014-02-21  Kugan Vivekanandarajah  <kug...@linaro.org>
+
+       PR target/60034
+       * gcc.target/aarch64/pr60034.c: New file.
+

diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index ea90311..89187c0 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -3203,6 +3203,8 @@ aarch64_classify_address (struct aarch64_address_info 
*info,
                }
              else if (SYMBOL_REF_DECL (sym))
                align = DECL_ALIGN (SYMBOL_REF_DECL (sym));
+             else if (SYMBOL_REF_FLAGS (sym))
+               align = GET_MODE_ALIGNMENT (GET_MODE (sym));
              else
                align = BITS_PER_UNIT;
 
diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
index 13c424c..b93e9da 100644
--- a/gcc/config/aarch64/aarch64.h
+++ b/gcc/config/aarch64/aarch64.h
@@ -132,6 +132,7 @@
   ((((ALIGN) < BITS_PER_WORD)                  \
     && (TREE_CODE (EXP) == ARRAY_TYPE          \
        || TREE_CODE (EXP) == UNION_TYPE        \
+       || TREE_CODE (EXP) == COMPLEX_TYPE      \
        || TREE_CODE (EXP) == RECORD_TYPE))     \
    ? BITS_PER_WORD : (ALIGN))
 
diff --git a/gcc/testsuite/gcc.target/aarch64/pr60034.c 
b/gcc/testsuite/gcc.target/aarch64/pr60034.c
index e69de29..99c821d 100644
--- a/gcc/testsuite/gcc.target/aarch64/pr60034.c
+++ b/gcc/testsuite/gcc.target/aarch64/pr60034.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-std=gnu99 -fgnu89-inline -O -Wall -Winline -Wwrite-strings 
-fmerge-all-constants -frounding-math -g -Wstrict-prototypes" } */
+
+static unsigned long global_max_fast;
+
+int __libc_mallopt (int param_number, int value)
+{
+ __asm__ __volatile__ ("# %[_SDT_A21]" :: [_SDT_A21] "nr" ((global_max_fast)));
+ global_max_fast = 1;
+}