[PATCH 23/25] Testsuite: GCN is always PIE.

[<ams@codesourcery.com>]

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The GCN/HSA loader ignores the load address and uses a random location, so we
build all GCN binaries as PIE, by default.

This patch makes the necessary testsuite adjustments to make this work
correctly.

2018-09-05  Andrew Stubbs  <ams@codesourcery.com>

	gcc/testsuite/
	* gcc.dg/graphite/scop-19.c: Check pie_enabled.
	* gcc.dg/pic-1.c: Disable on amdgcn.
	* gcc.dg/pic-2.c: Disable on amdgcn.
	* gcc.dg/pic-3.c: Disable on amdgcn.
	* gcc.dg/pic-4.c: Disable on amdgcn.
	* gcc.dg/pie-3.c: Disable on amdgcn.
	* gcc.dg/pie-4.c: Disable on amdgcn.
	* gcc.dg/uninit-19.c: Check pie_enabled.
	* lib/target-supports.exp (check_effective_target_pie): Add amdgcn.
---
 gcc/testsuite/gcc.dg/graphite/scop-19.c | 4 ++--
 gcc/testsuite/gcc.dg/pic-1.c            | 2 +-
 gcc/testsuite/gcc.dg/pic-2.c            | 1 +
 gcc/testsuite/gcc.dg/pic-3.c            | 2 +-
 gcc/testsuite/gcc.dg/pic-4.c            | 2 +-
 gcc/testsuite/gcc.dg/pie-3.c            | 2 +-
 gcc/testsuite/gcc.dg/pie-4.c            | 2 +-
 gcc/testsuite/gcc.dg/uninit-19.c        | 4 ++--
 gcc/testsuite/lib/target-supports.exp   | 3 ++-
 9 files changed, 12 insertions(+), 10 deletions(-)


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diff --git a/gcc/testsuite/gcc.dg/graphite/scop-19.c b/gcc/testsuite/gcc.dg/graphite/scop-19.c
index c89717b..6028132 100644
--- a/gcc/testsuite/gcc.dg/graphite/scop-19.c
+++ b/gcc/testsuite/gcc.dg/graphite/scop-19.c
@@ -31,6 +31,6 @@ d_growable_string_append_buffer (struct d_growable_string *dgs,
   if (need > dgs->alc)
     d_growable_string_resize (dgs, need);
 }
-/* { dg-final { scan-tree-dump-times "number of SCoPs: 0" 2 "graphite" { target nonpic } } } */
-/* { dg-final { scan-tree-dump-times "number of SCoPs: 0" 1 "graphite" { target { ! nonpic } } } } */
+/* { dg-final { scan-tree-dump-times "number of SCoPs: 0" 2 "graphite" { target { nonpic || pie_enabled } } } } */
+/* { dg-final { scan-tree-dump-times "number of SCoPs: 0" 1 "graphite" { target { ! { nonpic || pie_enabled } } } } } */
 
diff --git a/gcc/testsuite/gcc.dg/pic-1.c b/gcc/testsuite/gcc.dg/pic-1.c
index 82ba43d..4bb332e 100644
--- a/gcc/testsuite/gcc.dg/pic-1.c
+++ b/gcc/testsuite/gcc.dg/pic-1.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target { ! { *-*-darwin* hppa*-*-* } } } } */
+/* { dg-do compile { target { ! { *-*-darwin* hppa*-*-* amdgcn*-*-* } } } } */
 /* { dg-require-effective-target fpic } */
 /* { dg-options "-fpic" } */
 
diff --git a/gcc/testsuite/gcc.dg/pic-2.c b/gcc/testsuite/gcc.dg/pic-2.c
index bccec13..3846ec4 100644
--- a/gcc/testsuite/gcc.dg/pic-2.c
+++ b/gcc/testsuite/gcc.dg/pic-2.c
@@ -2,6 +2,7 @@
 /* { dg-require-effective-target fpic } */
 /* { dg-options "-fPIC" } */
 /* { dg-skip-if "__PIC__ is always 1 for MIPS" { mips*-*-* } } */
+/* { dg-skip-if "__PIE__ is always defined for GCN" { amdgcn*-*-* } } */
 
 #if __PIC__ != 2
 # error __PIC__ is not 2!
diff --git a/gcc/testsuite/gcc.dg/pic-3.c b/gcc/testsuite/gcc.dg/pic-3.c
index c56f06f..1397977 100644
--- a/gcc/testsuite/gcc.dg/pic-3.c
+++ b/gcc/testsuite/gcc.dg/pic-3.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* } } } } */
+/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* amdgcn*-*-* } } } } */
 /* { dg-options "-fno-pic" } */
 
 #ifdef __PIC__
diff --git a/gcc/testsuite/gcc.dg/pic-4.c b/gcc/testsuite/gcc.dg/pic-4.c
index 2afdd99..d6d9dc9 100644
--- a/gcc/testsuite/gcc.dg/pic-4.c
+++ b/gcc/testsuite/gcc.dg/pic-4.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* } } } } */
+/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* amdgcn*-*-* } } } } */
 /* { dg-options "-fno-PIC" } */
 
 #ifdef __PIC__
diff --git a/gcc/testsuite/gcc.dg/pie-3.c b/gcc/testsuite/gcc.dg/pie-3.c
index 5577437..fd4a48d 100644
--- a/gcc/testsuite/gcc.dg/pie-3.c
+++ b/gcc/testsuite/gcc.dg/pie-3.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* } } } } */
+/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* amdgcn*-*-* } } } } */
 /* { dg-options "-fno-pie" } */
 
 #ifdef __PIC__
diff --git a/gcc/testsuite/gcc.dg/pie-4.c b/gcc/testsuite/gcc.dg/pie-4.c
index 4134676..5523602 100644
--- a/gcc/testsuite/gcc.dg/pie-4.c
+++ b/gcc/testsuite/gcc.dg/pie-4.c
@@ -1,4 +1,4 @@
-/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* } } } } */
+/* { dg-do compile { target { ! { *-*-darwin* hppa*64*-*-* mips*-*-linux-* amdgcn*-*-* } } } } */
 /* { dg-options "-fno-PIE" } */
 
 #ifdef __PIC__
diff --git a/gcc/testsuite/gcc.dg/uninit-19.c b/gcc/testsuite/gcc.dg/uninit-19.c
index 094dc0e..3f5f06a 100644
--- a/gcc/testsuite/gcc.dg/uninit-19.c
+++ b/gcc/testsuite/gcc.dg/uninit-19.c
@@ -12,7 +12,7 @@ fn1 (int p1, float *f1, float *f2, float *f3, unsigned char *c1, float *f4,
 {
   if (p1 & 8)
     b[3] = p10[a];
-  /* { dg-warning "may be used uninitialized" "" { target { { nonpic } || { hppa*64*-*-* } } } .-1 } */
+  /* { dg-warning "may be used uninitialized" "" { target { { nonpic || pie_enabled } || { hppa*64*-*-* } } } .-1 } */
 }
 
 void
@@ -22,5 +22,5 @@ fn2 ()
   if (l & 6)
     n = &c + m;
   fn1 (l, &d, &e, &g, &i, &h, &k, n);
-  /* { dg-warning "may be used uninitialized" "" { target { ! { { nonpic } || { hppa*64*-*-* } } } } .-1 } */
+  /* { dg-warning "may be used uninitialized" "" { target { ! { { nonpic || pie_enabled } || { hppa*64*-*-* } } } } .-1 } */
 }
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index e27bed0..61442bd 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -1185,7 +1185,8 @@ proc check_effective_target_pie { } {
 	 || [istarget *-*-dragonfly*]
 	 || [istarget *-*-freebsd*]
 	 || [istarget *-*-linux*]
-	 || [istarget *-*-gnu*] } {
+	 || [istarget *-*-gnu*]
+	 || [istarget *-*-amdhsa]} {
 	return 1;
     }
     if { [istarget *-*-solaris2.1\[1-9\]*] } {