Hi!
On 2022-01-13T11:55:03+0100, I wrote:
> This has fallen out of (unfinished...) work earlier in the year: pushed
> to master branch commit 4bd8b1e881f0c26a5103cd1919809b3d63b60ef2
> "Document current '-Wuninitialized'/'-Wmaybe-uninitialized' diagnostics
> for OpenACC test cases".
..., and commit 2edbcaed95b8d8cbb05a6af486179db0da6e3245
"Document current '-Wuninitialized' diagnostics for
'libgomp.oacc-fortran/routine-10.f90' [PR102192]".
Grüße
Thomas
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>From 2edbcaed95b8d8cbb05a6af486179db0da6e3245 Mon Sep 17 00:00:00 2001
From: Thomas Schwinge <tho...@codesourcery.com>
Date: Thu, 26 Aug 2021 16:55:21 +0200
Subject: [PATCH] Document current '-Wuninitialized' diagnostics for
'libgomp.oacc-fortran/routine-10.f90' [PR102192]
libgomp/
PR tree-optimization/102192
* testsuite/libgomp.oacc-fortran/routine-10.f90: Document current
'-Wuninitialized' diagnostics.
---
.../testsuite/libgomp.oacc-fortran/routine-10.f90 | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/libgomp/testsuite/libgomp.oacc-fortran/routine-10.f90 b/libgomp/testsuite/libgomp.oacc-fortran/routine-10.f90
index 90cca7c1024..9290e90f970 100644
--- a/libgomp/testsuite/libgomp.oacc-fortran/routine-10.f90
+++ b/libgomp/testsuite/libgomp.oacc-fortran/routine-10.f90
@@ -1,5 +1,7 @@
! { dg-do run }
-!
+
+! { dg-additional-options -Wuninitialized }
+
module m
implicit none
contains
@@ -26,6 +28,13 @@ contains
call add_ps_routine(a, b, c)
end function add_ef
+ ! This '-Wmaybe-uninitialized' diagnostic appears for '-O2' only; PR102192.
+ ! { dg-xfail-if PR102192 { *-*-* } { -O2 } }
+ ! There's another instance (again '-O2' only) further down, but as any number
+ ! of 'dg-xfail-if' only apply to the first 'dg-bogus' etc., we have no way to
+ ! XFAIL that other one, so we instead match all of them here (via line '0'):
+ ! { dg-bogus {'c' may be used uninitialized} {} { target *-*-* } 0 }
+ ! { TODO_dg-bogus {'c' may be used uninitialized} {} { target *-*-* } .-7 }
end module m
program main
@@ -44,6 +53,9 @@ program main
do i = 1, n
if (i .eq. 4) then
c_a = add_ef(a_a, b_a)
+ ! See above.
+ ! { TODO_dg-xfail-if PR102192 { *-*-* } { -O2 } }
+ ! { TODO_dg-bogus {'c' may be used uninitialized} {} { target *-*-* } .-3 }
end if
end do
!$acc end parallel
--
2.34.1
