From b3808325c52ab089d28b5bf9b8d9558e8c2fa329 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Thu, 5 Aug 2010 14:38:10 +0000
Subject: [PATCH] 	* ld-powerpc/tocopt.s, * ld-powerpc/tocopt.d: New
 test. 	* ld-powerpc/powerpc.exp: Run it.

---
 ld/testsuite/ChangeLog              |  5 +++
 ld/testsuite/ld-powerpc/powerpc.exp |  2 ++
 ld/testsuite/ld-powerpc/tocopt.d    | 14 ++++++++
 ld/testsuite/ld-powerpc/tocopt.s    | 51 +++++++++++++++++++++++++++++
 4 files changed, 72 insertions(+)
 create mode 100644 ld/testsuite/ld-powerpc/tocopt.d
 create mode 100644 ld/testsuite/ld-powerpc/tocopt.s

diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index b407ab66f18..f5b05fa3cc1 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-08-06  Alan Modra  <amodra@gmail.com>
+
+	* ld-powerpc/tocopt.s, * ld-powerpc/tocopt.d: New test.
+	* ld-powerpc/powerpc.exp: Run it.
+
 2010-07-23  Naveen.H.S  <naveen.S@kpitcummins.com>
 	    Ina Pandit  <ina.pandit@kpitcummins.com>
 
diff --git a/ld/testsuite/ld-powerpc/powerpc.exp b/ld/testsuite/ld-powerpc/powerpc.exp
index 9d0207f1c0c..6cb797e8513 100644
--- a/ld/testsuite/ld-powerpc/powerpc.exp
+++ b/ld/testsuite/ld-powerpc/powerpc.exp
@@ -178,6 +178,8 @@ set ppc64elftests {
       "tlsmark"}
     {"sym@tocbase" "-shared -melf64ppc" "-a64" {symtocbase-1.s symtocbase-2.s}
 	{{objdump -dj.data symtocbase.d}} "symtocbase.so"}
+    {"TOC opt" "-melf64ppc" "-a64"  {tocopt.s}
+     {{objdump -s tocopt.d}} "tocopt"}
 }
 
 
diff --git a/ld/testsuite/ld-powerpc/tocopt.d b/ld/testsuite/ld-powerpc/tocopt.d
new file mode 100644
index 00000000000..91686611e10
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/tocopt.d
@@ -0,0 +1,14 @@
+
+.*:     file format .*
+
+Contents of section \.text:
+ 100000b0 60000000 e9228018 60000000 38a28020  .*
+ 100000c0 e8c50000 60000000 3ba08028 7c62e82a  .*
+ 100000d0 60000000 39228033 60000000 38a28008  .*
+ 100000e0 e8c50000 60000000 3ba08010 7c62e82a  .*
+Contents of section \.got:
+ 100100f0 00000000 100180f0 00000000 10010124  .*
+ 10010100 00000000 10010125 00000000 10010120  .*
+ 10010110 00000000 10010121 00000000 10010122  .*
+Contents of section \.sdata:
+ 10010120 01020304 0506                        .*
diff --git a/ld/testsuite/ld-powerpc/tocopt.s b/ld/testsuite/ld-powerpc/tocopt.s
new file mode 100644
index 00000000000..a2447ca358c
--- /dev/null
+++ b/ld/testsuite/ld-powerpc/tocopt.s
@@ -0,0 +1,51 @@
+ .section .toc,"aw"
+x4t:
+ .quad x4
+x5t:
+ .quad x5
+x6t:
+ .quad x6
+
+ .section .sdata,"aw"
+x1:
+ .byte 1
+x2:
+ .byte 2
+x3:
+ .byte 3
+x4:
+ .byte 4
+x5:
+ .byte 5
+x6:
+ .byte 6
+
+ .globl _start
+ .text
+_start:
+# no need for got entry, optimise to nop,addi
+# note: ld doesn't yet do got optimisation, so we get nop,ld
+ addis 9,2,x1@got@ha
+ ld 9,x1@got@l(9)
+# must keep got entry, optimise to nop,addi,ld
+ addis 4,2,x2@got@ha
+ addi 5,4,x2@got@l
+ ld 6,0(5)
+# must keep got entry, optimise to nop,li,ldx
+ lis 29,x3@got@ha
+ addi 29,29,x3@got@l
+ ldx 3,2,29
+
+# no need for toc entry, optimise to nop,addi
+ addis 9,2,x4t@toc@ha
+ ld 9,x4t@toc@l(9)
+# must keep toc entry, optimise to nop,addi,ld
+# if we had a reloc tying the ld to x5/x5t then we could throw away
+# the toc entry and optimise to nop,nop,addi
+ addis 4,2,x5t@toc@ha
+ addi 5,4,x5t@toc@l
+ ld 6,0(5)
+# must keep toc entry, optimise to nop,li,ldx
+ lis 29,x6t@toc@ha
+ addi 29,29,x6t@toc@l
+ ldx 3,2,29
-- 
2.30.2