I've pushed the attached patch to clean up some test failures I've seen
on nios2-elf. This target defaults to -fno-delete-null-pointer-checks
so any optimization tests that depend on assumptions that valid pointers
are non-zero have to be marked explicitly. The others ought to be
obvious, except perhaps struct-by-value-1.c which was giving a link
error about overflowing the small data region without -G0.
My last set of test results were pretty messy but I think almost all of
the problems are not nios2-specific (e.g., PR103166, PR103163). I think
it is better to wait until we're into stage 3 and the churn settles down
some before I make another pass to triage remaining nios2-specific
problems, but I might as well check in what I have now instead of
sitting on it.
-Sandra
commit eb43f1a95d1d7a0f88a8107d860e5343507554dd
Author: Sandra Loosemore <san...@codesourcery.com>
Date: Thu Nov 11 06:31:02 2021 -0800
Testsuite: Various fixes for nios2.
2021-11-11 Sandra Loosemore <san...@codesourcery.com>
gcc/testsuite/
* g++.dg/warn/Wmismatched-new-delete-5.C: Add
-fdelete-null-pointer-checks.
* gcc.dg/attr-returns-nonnull.c: Likewise.
* gcc.dg/debug/btf/btf-datasec-1.c: Add -G0 option for nios2.
* gcc.dg/ifcvt-4.c: Skip on nios2.
* gcc.dg/struct-by-value-1.c: Add -G0 option for nios2.
diff --git a/gcc/testsuite/g++.dg/warn/Wmismatched-new-delete-5.C b/gcc/testsuite/g++.dg/warn/Wmismatched-new-delete-5.C
index 92c75df..bac2b68 100644
--- a/gcc/testsuite/g++.dg/warn/Wmismatched-new-delete-5.C
+++ b/gcc/testsuite/g++.dg/warn/Wmismatched-new-delete-5.C
@@ -1,7 +1,7 @@
/* PR c++/100876 - -Wmismatched-new-delete should either look through
or ignore placement new
{ dg-do compile }
- { dg-options "-O2 -Wall" } */
+ { dg-options "-O2 -Wall -fdelete-null-pointer-checks" } */
extern "C" {
void* malloc (__SIZE_TYPE__);
diff --git a/gcc/testsuite/gcc.dg/attr-returns-nonnull.c b/gcc/testsuite/gcc.dg/attr-returns-nonnull.c
index 22ee30a..e4e20b8 100644
--- a/gcc/testsuite/gcc.dg/attr-returns-nonnull.c
+++ b/gcc/testsuite/gcc.dg/attr-returns-nonnull.c
@@ -1,7 +1,7 @@
/* Verify that attribute returns_nonnull on global and local function
declarations is merged.
{ dg-do compile }
- { dg-options "-Wall -fdump-tree-optimized" } */
+ { dg-options "-Wall -fdump-tree-optimized -fdelete-null-pointer-checks" } */
void foo (void);
diff --git a/gcc/testsuite/gcc.dg/debug/btf/btf-datasec-1.c b/gcc/testsuite/gcc.dg/debug/btf/btf-datasec-1.c
index f809d93..dbb236b 100644
--- a/gcc/testsuite/gcc.dg/debug/btf/btf-datasec-1.c
+++ b/gcc/testsuite/gcc.dg/debug/btf/btf-datasec-1.c
@@ -12,6 +12,7 @@
/* { dg-do compile ) */
/* { dg-options "-O0 -gbtf -dA" } */
/* { dg-options "-O0 -gbtf -dA -msdata=none" { target { { powerpc*-*-* } && ilp32 } } } */
+/* { dg-options "-O0 -gbtf -dA -G0" { target { nios2-*-* } } } */
/* Check for two DATASEC entries with vlen 3, and one with vlen 1. */
/* { dg-final { scan-assembler-times "0xf000003\[\t \]+\[^\n\]*btt_info" 2 } } */
diff --git a/gcc/testsuite/gcc.dg/ifcvt-4.c b/gcc/testsuite/gcc.dg/ifcvt-4.c
index e74e449..0525102 100644
--- a/gcc/testsuite/gcc.dg/ifcvt-4.c
+++ b/gcc/testsuite/gcc.dg/ifcvt-4.c
@@ -2,7 +2,7 @@
/* { dg-additional-options "-misel" { target { powerpc*-*-* } } } */
/* { dg-additional-options "-march=z196" { target { s390x-*-* } } } */
/* { dg-additional-options "-mtune-ctrl=^one_if_conv_insn" { target { i?86-*-* x86_64-*-* } } } */
-/* { dg-skip-if "Multiple set if-conversion not guaranteed on all subtargets" { "arm*-*-* avr-*-* hppa*64*-*-* s390-*-* visium-*-*" riscv*-*-* msp430-*-* } } */
+/* { dg-skip-if "Multiple set if-conversion not guaranteed on all subtargets" { "arm*-*-* avr-*-* hppa*64*-*-* s390-*-* visium-*-*" riscv*-*-* msp430-*-* nios2-*-*} } */
/* { dg-skip-if "" { "s390x-*-*" } { "-m31" } } */
typedef int word __attribute__((mode(word)));
diff --git a/gcc/testsuite/gcc.dg/struct-by-value-1.c b/gcc/testsuite/gcc.dg/struct-by-value-1.c
index addf253..ae7adb5 100644
--- a/gcc/testsuite/gcc.dg/struct-by-value-1.c
+++ b/gcc/testsuite/gcc.dg/struct-by-value-1.c
@@ -1,6 +1,7 @@
/* Test structure passing by value. */
/* { dg-do run } */
/* { dg-options "-O2" } */
+/* { dg-options "-O2 -G0" { target { nios2-*-* } } } */
#define T(N) \
struct S##N { unsigned char i[N]; }; \
