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[PATCH v3] gcc/config/tilegx/tilegx.c (tilegx_function_profiler): Save r10 to stack before call mcount
- From: chengang at emindsoft dot com dot cn
- To: law at redhat dot com
- Cc: rth at redhat dot com, mikestump at comcast dot net, gcc-patches at gcc dot gnu dot org, cmetcalf at ezchip dot com, walt at tilera dot com, peter dot maydell at linaro dot org, Chen Gang <gang dot chen dot 5i5j at gmail dot com>
- Date: Sat, 4 Jun 2016 21:25:50 +0800
- Subject: [PATCH v3] gcc/config/tilegx/tilegx.c (tilegx_function_profiler): Save r10 to stack before call mcount
- Authentication-results: sourceware.org; auth=none
From: Chen Gang <gang.chen.5i5j@gmail.com>
r10 may also be as parameter stack pointer for the nested function, so
need save it before call mcount.
Also clean up code: use '!' instead of "== 0" for checking
static_chain_decl and compute_total_frame_size.
2016-06-04 Chen Gang <gang.chen.5i5j@gmail.com>
gcc/
PR target/71331
* config/tilegx/tilegx.c (tilegx_function_profiler): Save r10
to stack before call mcount.
(tilegx_can_use_return_insn_p): Clean up code.
---
gcc/config/tilegx/tilegx.c | 20 ++++++++++++++++++--
1 file changed, 18 insertions(+), 2 deletions(-)
diff --git a/gcc/config/tilegx/tilegx.c b/gcc/config/tilegx/tilegx.c
index 06c832c..55161bb 100644
--- a/gcc/config/tilegx/tilegx.c
+++ b/gcc/config/tilegx/tilegx.c
@@ -3880,8 +3880,8 @@ bool
tilegx_can_use_return_insn_p (void)
{
return (reload_completed
- && cfun->static_chain_decl == 0
- && compute_total_frame_size () == 0
+ && !cfun->static_chain_decl
+ && !compute_total_frame_size ()
&& tilegx_current_function_is_leaf ()
&& !crtl->profile && !df_regs_ever_live_p (TILEGX_LINK_REGNUM));
}
@@ -5507,6 +5507,15 @@ tilegx_function_profiler (FILE *file, int labelno ATTRIBUTE_UNUSED)
fprintf (file, "\t}\n");
}
+ if (cfun->static_chain_decl)
+ {
+ fprintf (file,
+ "\t{\n"
+ "\taddi\tsp, sp, -8\n"
+ "\tst\tsp, r10\n"
+ "\t}\n");
+ }
+
if (flag_pic)
{
fprintf (file,
@@ -5524,6 +5533,13 @@ tilegx_function_profiler (FILE *file, int labelno ATTRIBUTE_UNUSED)
"\t}\n", MCOUNT_NAME);
}
+ if (cfun->static_chain_decl)
+ {
+ fprintf (file,
+ "\taddi\tsp, sp, 8\n"
+ "\tld\tr10, sp\n");
+ }
+
tilegx_in_bundle = false;
}
--
1.9.3