https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
Xi Ruoyao changed:
What|Removed |Added
Target Milestone|--- |14.0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
Xi Ruoyao changed:
What|Removed |Added
Resolution|--- |FIXED
Status|NEW
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
--- Comment #8 from Jeffrey A. Law ---
No spills on rv64 either.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
--- Comment #7 from Vladimir Makarov ---
For last 2 weeks I pushed several patches for better dealing with equivalences
in RA.
It seems the patches solves the current PR. I checked the test code generation
for loongarch and aarch64 and did
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
--- Comment #6 from chenglulu ---
I tried changing the code,
diff --git a/gcc/lra-eliminations.cc b/gcc/lra-eliminations.cc
index 4220639..efaea6922b5 100644
--- a/gcc/lra-eliminations.cc
+++ b/gcc/lra-eliminations.cc
@@ -914,6 +914,11 @@
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
--- Comment #5 from chenglulu ---
On AARCH64:
$cat t.c
int test(int x)
{
char buf[128 << 10];
return buf[x];
}
$cat t-1.c
int test(int x)
{
char buf[0xfff];
return buf[x];
}
The generated assemblies are as
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
--- Comment #4 from chenglulu ---
(In reply to Xi Ruoyao from comment #3)
> I don't really understand why we should prefer the memory if there is a
> REG_EQUIV note, nor why this does not happen with -fPIE.
I didn't understand the optimization
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
--- Comment #3 from Xi Ruoyao ---
(In reply to chenglulu from comment #2)
> I think this is most likely caused by the implementation of the public code.
Agree, so I filled the component as rtl-optimization.
I tracked a (non root) cause to the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
chenglulu changed:
What|Removed |Added
CC||chenglulu at loongson dot cn
--- Comment
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
--- Comment #1 from Xi Ruoyao ---
Forgot to mention: a very strange aspect of this issue is adding "-fPIE" covers
it up.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109035
Xi Ruoyao changed:
What|Removed |Added
Ever confirmed|0 |1
Target|
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