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51 lines
1.8 KiB

commit c22c3dee4bbf4a99b234307c63e4845052a15890
Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu Sep 21 22:03:59 2017 +0000
* config/i386/i386.c (ix86_adjust_stack_and_probe_stack_clash):
Fix dump output if the only stack space is for pushed registers.
* lib/target-supports.exp
(check_effective_target_frame_pointer_for_non_leaf): Add
case for x86 Solaris.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@253082 138bc75d-0d04-0410-961f-82ee72b054a4
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index a9072f58f50..d8a225195ae 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -9856,7 +9856,16 @@ ix86_adjust_stack_and_probe_stack_clash (const HOST_WIDE_INT size)
no probes are needed. */
if (!size)
{
- dump_stack_clash_frame_info (NO_PROBE_NO_FRAME, false);
+ struct ix86_frame frame;
+ ix86_compute_frame_layout (&frame);
+
+ /* However, the allocation of space via pushes for register
+ saves could be viewed as allocating space, but without the
+ need to probe. */
+ if (frame.nregs || frame.nsseregs || frame_pointer_needed)
+ dump_stack_clash_frame_info (NO_PROBE_SMALL_FRAME, true);
+ else
+ dump_stack_clash_frame_info (NO_PROBE_NO_FRAME, false);
return;
}
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index f24c5c6e0ac..7c126e4122b 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -5439,6 +5439,12 @@ proc check_effective_target_frame_pointer_for_non_leaf { } {
if { [istarget aarch*-*-*] } {
return 1
}
+
+ # Solaris/x86 defaults to -fno-omit-frame-pointer.
+ if { [istarget i?86-*-solaris*] || [istarget x86_64-*-solaris*] } {
+ return 1
+ }
+
return 0
}