re PR lto/86004 (Several lto test cases begin failing with r260963)

	PR lto/86004
	* doc/sourcebuild.texi (lto_incremental): Document new effective
	target.

	* lib/target-supports.exp (check_effective_target_lto_incremental):
	New.
	* g++.dg/lto/pr69137_0.C: Require lto_incremental effective target.
	* g++.dg/lto/pr65316_0.C: Likewise.
	* g++.dg/lto/pr85176_0.C: Likewise.
	* g++.dg/lto/pr79000_0.C: Likewise.
	* g++.dg/lto/pr66180_0.C: Likewise.
	* g++.dg/lto/pr65193_0.C: Likewise.
	* g++.dg/lto/pr69077_0.C: Likewise.
	* g++.dg/lto/pr68057_0.C: Likewise.
	* g++.dg/lto/pr66705_0.C: Likewise.
	* g++.dg/lto/pr65302_0.C: Likewise.
	* g++.dg/lto/20091002-1_0.C: Likewise.
	* g++.dg/lto/pr81940_0.C: Likewise.
	* g++.dg/lto/pr64043_0.C: Likewise.
	* g++.dg/lto/pr65549_0.C: Likewise.
	* g++.dg/lto/pr69133_0.C: Likewise.
	* gfortran.dg/lto/pr79108_0.f90: Likewise.

From-SVN: r266974

18 files changed, 50 insertions, 0 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0fde3cb..79d7b2f 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,25 @@
+2018-12-11  Jakub Jelinek  <jakub@redhat.com>
+
+	PR lto/86004
+	* lib/target-supports.exp (check_effective_target_lto_incremental):
+	New.
+	* g++.dg/lto/pr69137_0.C: Require lto_incremental effective target.
+	* g++.dg/lto/pr65316_0.C: Likewise.
+	* g++.dg/lto/pr85176_0.C: Likewise.
+	* g++.dg/lto/pr79000_0.C: Likewise.
+	* g++.dg/lto/pr66180_0.C: Likewise.
+	* g++.dg/lto/pr65193_0.C: Likewise.
+	* g++.dg/lto/pr69077_0.C: Likewise.
+	* g++.dg/lto/pr68057_0.C: Likewise.
+	* g++.dg/lto/pr66705_0.C: Likewise.
+	* g++.dg/lto/pr65302_0.C: Likewise.
+	* g++.dg/lto/20091002-1_0.C: Likewise.
+	* g++.dg/lto/pr81940_0.C: Likewise.
+	* g++.dg/lto/pr64043_0.C: Likewise.
+	* g++.dg/lto/pr65549_0.C: Likewise.
+	* g++.dg/lto/pr69133_0.C: Likewise.
+	* gfortran.dg/lto/pr79108_0.f90: Likewise.
+
 2018-12-10  Jeff Law  <law@redhat.com>
 
 	PR tree-optimization/80520
diff --git a/gcc/testsuite/g++.dg/lto/20091002-1_0.C b/gcc/testsuite/g++.dg/lto/20091002-1_0.C
index a59a0cb..4ddb385 100644
--- a/gcc/testsuite/g++.dg/lto/20091002-1_0.C
+++ b/gcc/testsuite/g++.dg/lto/20091002-1_0.C
@@ -1,5 +1,6 @@
 // { dg-lto-do link }
 // { dg-require-effective-target fpic }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options {{-fPIC -flto -Wno-return-type}} }
 // { dg-extra-ld-options "-fPIC -r -nostdlib" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr64043_0.C b/gcc/testsuite/g++.dg/lto/pr64043_0.C
index 9cc5596..078668f 100644
--- a/gcc/testsuite/g++.dg/lto/pr64043_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr64043_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -flto -std=c++11 } } }
 // { dg-extra-ld-options "-r -nostdlib -O2" }
 class Validator
diff --git a/gcc/testsuite/g++.dg/lto/pr65193_0.C b/gcc/testsuite/g++.dg/lto/pr65193_0.C
index ceebe51..7ac6d6c 100644
--- a/gcc/testsuite/g++.dg/lto/pr65193_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr65193_0.C
@@ -1,5 +1,6 @@
 /* { dg-lto-do link } */
 /* { dg-require-effective-target fpic } */
+/* { dg-require-effective-target lto_incremental } */
 /* { dg-lto-options {{-fPIC -r -nostdlib -flto -O2 -g -Wno-return-type}} } */
 
 void frexp (int, int *);
diff --git a/gcc/testsuite/g++.dg/lto/pr65302_0.C b/gcc/testsuite/g++.dg/lto/pr65302_0.C
index 83e1194..1f35c39 100644
--- a/gcc/testsuite/g++.dg/lto/pr65302_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr65302_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -flto -O2 -Wno-return-type } } }
 // { dg-extra-ld-options "-r -nostdlib -O0" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr65316_0.C b/gcc/testsuite/g++.dg/lto/pr65316_0.C
index 2b9360e..9cd56e3 100644
--- a/gcc/testsuite/g++.dg/lto/pr65316_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr65316_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -flto -std=c++11 -g2 -fno-lto-odr-type-merging -O2 -Wno-return-type } } }
 // { dg-extra-ld-options "-r -nostdlib -O2 -fno-lto-odr-type-merging" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr65549_0.C b/gcc/testsuite/g++.dg/lto/pr65549_0.C
index d3ed1dc..382f7ef 100644
--- a/gcc/testsuite/g++.dg/lto/pr65549_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr65549_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -std=gnu++14 -flto -g -Wno-return-type } { -std=gnu++14 -flto -g -O2 -fno-inline -flto-partition=max -Wno-return-type } } }
 // { dg-extra-ld-options "-r -nostdlib" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr66180_0.C b/gcc/testsuite/g++.dg/lto/pr66180_0.C
index c22dc28..cfb496b 100644
--- a/gcc/testsuite/g++.dg/lto/pr66180_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr66180_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -flto -std=c++14 -r -nostdlib } } }
 #include <memory>
 namespace {
diff --git a/gcc/testsuite/g++.dg/lto/pr66705_0.C b/gcc/testsuite/g++.dg/lto/pr66705_0.C
index faf3f2d..ac9a019 100644
--- a/gcc/testsuite/g++.dg/lto/pr66705_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr66705_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -O2 -flto -flto-partition=max -fipa-pta } } }
 // { dg-extra-ld-options "-r -nostdlib" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr68057_0.C b/gcc/testsuite/g++.dg/lto/pr68057_0.C
index 4e124d7..6f38df42 100644
--- a/gcc/testsuite/g++.dg/lto/pr68057_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr68057_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 /* { dg-extra-ld-options { -O2 -Wno-odr -r -nostdlib } } */
 struct SPxPricer;
 struct SoPlex {
diff --git a/gcc/testsuite/g++.dg/lto/pr69077_0.C b/gcc/testsuite/g++.dg/lto/pr69077_0.C
index 10cb059..cee3212 100644
--- a/gcc/testsuite/g++.dg/lto/pr69077_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr69077_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -O3 -g -flto } } }
 // { dg-extra-ld-options "-r -nostdlib" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr69133_0.C b/gcc/testsuite/g++.dg/lto/pr69133_0.C
index bd66707..e6f91df 100644
--- a/gcc/testsuite/g++.dg/lto/pr69133_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr69133_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -flto -O2 } } }
 // { dg-extra-ld-options "-r -nostdlib -flto -flto-partition=none -O2" }
 namespace xercesc_3_1 {
diff --git a/gcc/testsuite/g++.dg/lto/pr69137_0.C b/gcc/testsuite/g++.dg/lto/pr69137_0.C
index 09367e2..7d5ed2d 100644
--- a/gcc/testsuite/g++.dg/lto/pr69137_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr69137_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -std=c++11 -g -flto } } }
 // { dg-extra-ld-options "-r -nostdlib" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr79000_0.C b/gcc/testsuite/g++.dg/lto/pr79000_0.C
index 1d5c40e..4a13ae8 100644
--- a/gcc/testsuite/g++.dg/lto/pr79000_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr79000_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { "-flto -g" } }
 // { dg-extra-ld-options "-r -nostdlib" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr81940_0.C b/gcc/testsuite/g++.dg/lto/pr81940_0.C
index 4eba5fd..6802176 100644
--- a/gcc/testsuite/g++.dg/lto/pr81940_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr81940_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -O -flto } } }
 // { dg-extra-ld-options "-r -nostdlib -g" }
 
diff --git a/gcc/testsuite/g++.dg/lto/pr85176_0.C b/gcc/testsuite/g++.dg/lto/pr85176_0.C
index 73767ce..d84b212 100644
--- a/gcc/testsuite/g++.dg/lto/pr85176_0.C
+++ b/gcc/testsuite/g++.dg/lto/pr85176_0.C
@@ -1,4 +1,5 @@
 // { dg-lto-do link }
+// { dg-require-effective-target lto_incremental }
 // { dg-lto-options { { -flto -g1 } } }
 // { dg-extra-ld-options "-r -nostdlib" }
 namespace a {
diff --git a/gcc/testsuite/gfortran.dg/lto/pr79108_0.f90 b/gcc/testsuite/gfortran.dg/lto/pr79108_0.f90
index 9c87850..e014bf8 100644
--- a/gcc/testsuite/gfortran.dg/lto/pr79108_0.f90
+++ b/gcc/testsuite/gfortran.dg/lto/pr79108_0.f90
@@ -1,4 +1,5 @@
 ! { dg-lto-do link }
+! { dg-require-effective-target lto_incremental }
 ! { dg-lto-options {{ -Ofast -flto --param ggc-min-expand=0 --param ggc-min-heapsize=0 }} }
 ! { dg-extra-ld-options "-r" }
 
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index 5026c59..aade9d4 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -8014,6 +8014,18 @@ proc check_effective_target_lto { } {
     } "-flto"]
 }
 
+# Return 1 if the compiler and linker support incremental link-time
+# optimization.
+
+proc check_effective_target_lto_incremental { } {
+    if ![check_effective_target_lto] {
+	return 0
+    }
+    return [check_no_compiler_messages lto_incremental executable {
+	int main () { return 0; }
+    } "-flto -r -nostdlib"]
+}
+
 # Return 1 if -mx32 -maddress-mode=short can compile, 0 otherwise.
 
 proc check_effective_target_maybe_x32 { } {