From: Andi Kleen <ak@gcc.gnu.org>
Date: Mon, 29 Jul 2024 17:17:43 +0000 (-0700)
Subject: Revert "PR116080: Fix tail call dejagnu checks"
X-Git-Tag: basepoints/gcc-16~7169
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7d6f7327e9211fbb4a800c06d00c4555dbffcec;p=thirdparty%2Fgcc.git

Revert "PR116080: Fix tail call dejagnu checks"

This reverts commit ee41cd863b7c38ee3bc415ea7154954aa6facca3.
---

diff --git a/gcc/testsuite/g++.dg/musttail10.C b/gcc/testsuite/g++.dg/musttail10.C
index bd75affa222..ff7fcc7d875 100644
--- a/gcc/testsuite/g++.dg/musttail10.C
+++ b/gcc/testsuite/g++.dg/musttail10.C
@@ -8,7 +8,7 @@ double g() { [[gnu::musttail]] return f<int>(); } /* { dg-error "cannot tail-cal
 
 template <class T>
 __attribute__((noinline, noclone, noipa))
-T g1() { [[gnu::musttail]] return f<T>(); } /* { dg-error "target is not able" "" { target { external_tail_call } } } */
+T g1() { [[gnu::musttail]] return f<T>(); } /* { dg-error "target is not able" "" { target powerpc*-*-* } } */
 
 template <class T>
 __attribute__((noinline, noclone, noipa))
diff --git a/gcc/testsuite/g++.dg/musttail6.C b/gcc/testsuite/g++.dg/musttail6.C
index 81f6d9f3ca7..5c6f69407dd 100644
--- a/gcc/testsuite/g++.dg/musttail6.C
+++ b/gcc/testsuite/g++.dg/musttail6.C
@@ -1,6 +1,6 @@
 /* { dg-do compile { target { struct_tail_call } } } */
-/* { dg-require-effective-target external_tail_call } */
 /* A lot of architectures will not build this due to PR115606 and PR115607 */
+/* { dg-skip-if "powerpc does not support sibcall to templates" { powerpc*-*-* } } */
 /* { dg-options "-std=gnu++11" } */
 /* { dg-additional-options "-fdelayed-branch" { target sparc*-*-* } } */
 
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 0a3946e82d4..d368251ef9a 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -12741,15 +12741,7 @@ proc check_effective_target_tail_call { } {
     return [check_no_messages_and_pattern tail_call ",SIBCALL" rtl-expand {
 	__attribute__((__noipa__)) void foo (void) { }
 	__attribute__((__noipa__)) void bar (void) { foo(); }
-    } {-fdump-rtl-expand-all}] ;# The "SIBCALL" note requires a detailed dump.
-}
-
-# Return 1 if the target can perform tail-calls for externals
-proc check_effective_target_external_tail_call { } {
-    return [check_no_messages_and_pattern tail_call ",SIBCALL" rtl-expand {
-	extern __attribute__((__noipa__)) void foo (void);
-	__attribute__((__noipa__)) void bar (void) { foo(); }
-    } {-fdump-rtl-expand-all}] ;# The "SIBCALL" note requires a detailed dump.
+    } {-O2 -fdump-rtl-expand-all}] ;# The "SIBCALL" note requires a detailed dump.
 }
 
 # Return 1 if the target can perform tail-call optimizations for structures
@@ -12759,9 +12751,9 @@ proc check_effective_target_struct_tail_call { } {
     return [check_no_messages_and_pattern tail_call ",SIBCALL" rtl-expand {
 	// C++
 	struct foo { int a, b; };
-	extern __attribute__((__noipa__)) struct foo foo (void);
+	__attribute__((__noipa__)) struct foo foo (void) { return {}; }
 	__attribute__((__noipa__)) struct foo bar (void) { return foo(); }
-    } {-fdump-rtl-expand-all}] ;# The "SIBCALL" note requires a detailed dump.
+    } {-O2 -fdump-rtl-expand-all}] ;# The "SIBCALL" note requires a detailed dump.
 }
 
 # Return 1 if the target's calling sequence or its ABI