2010-01-13 Chao-ying Fu <fu@mips.com>

	* ld-mips-elf/jr-to-b-1.d, ld-mips-elf/jr-to-b-2.d: New tests.
	* ld-mips-elf/jr-to-b-1.s, ld-mips-elf/jr-to-b-2.s: Source.
	* ld-mips-elf/mips-elf.exp: Run new tests.

5 files changed, 140 insertions, 0 deletions

diff --git a/ld/testsuite/ld-mips-elf/jr-to-b-1.d b/ld/testsuite/ld-mips-elf/jr-to-b-1.d
new file mode 100644
index 0000000..c786847
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/jr-to-b-1.d
@@ -0,0 +1,25 @@
+#name: jr to b conversion
+#source: jr-to-b-1.s
+#as: -32 -mips1 -EB
+#ld: -shared -melf32btsmip
+#objdump: -d
+
+.*:     file format .*
+
+
+Disassembly of section \.text:
+
+.* <s>:
+.*:	03e00008 	jr	ra
+.*:	24020001 	li	v0,1
+
+.* <t>:
+.*:	3c1c.... 	lui	gp,.*
+.*:	279c.... 	addiu	gp,gp,.*
+.*:	0399e021 	addu	gp,gp,t9
+.*:	8f998018 	lw	t9,.*\(gp\)
+.*:	00000000 	nop
+.*:	2739.... 	addiu	t9,t9,.*
+.*:	1000fff7 	b	.* <s>
+.*:	00000000 	nop
+#pass
diff --git a/ld/testsuite/ld-mips-elf/jr-to-b-1.s b/ld/testsuite/ld-mips-elf/jr-to-b-1.s
new file mode 100644
index 0000000..8f07005
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/jr-to-b-1.s
@@ -0,0 +1,42 @@
+	.abicalls
+	.text
+	.align	2
+	.set	nomips16
+	.ent	s
+	.type	s, @function
+s:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	li	$2,1			# 0x1
+
+	.set	macro
+	.set	reorder
+	.end	s
+	.size	s, .-s
+	.align	2
+	.globl	t
+	.set	nomips16
+	.ent	t
+	.type	t, @function
+t:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	.set	noreorder
+	.cpload	$25
+	.set	nomacro
+	lw	$25,%got(s)($28)
+	nop
+	addiu	$25,$25,%lo(s)
+	.reloc	1f,R_MIPS_JALR,s
+1:	jr	$25
+	nop
+
+	.set	macro
+	.set	reorder
+	.end	t
+	.size	t, .-t
diff --git a/ld/testsuite/ld-mips-elf/jr-to-b-2.d b/ld/testsuite/ld-mips-elf/jr-to-b-2.d
new file mode 100644
index 0000000..4b6399f
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/jr-to-b-2.d
@@ -0,0 +1,25 @@
+#name: jr not to b conversion
+#source: jr-to-b-2.s
+#as: -32 -mips1 -EB
+#ld: -shared -melf32btsmip
+#objdump: -d
+
+.*:     file format .*
+
+
+Disassembly of section \.text:
+
+.* <s>:
+.*:	e820      	jr	ra
+.*:	6a01      	li	v0,1
+
+.* <t>:
+.*:	3c1c.... 	lui	gp,.*
+.*:	279c.... 	addiu	gp,gp,.*
+.*:	0399e021 	addu	gp,gp,t9
+.*:	8f99.... 	lw	t9,.*\(gp\)
+.*:	00000000 	nop
+.*:	2739.... 	addiu	t9,t9,.*
+.*:	03200008 	jr	t9
+.*:	00000000 	nop
+#pass
diff --git a/ld/testsuite/ld-mips-elf/jr-to-b-2.s b/ld/testsuite/ld-mips-elf/jr-to-b-2.s
new file mode 100644
index 0000000..ac883c3
--- /dev/null
+++ b/ld/testsuite/ld-mips-elf/jr-to-b-2.s
@@ -0,0 +1,42 @@
+	.abicalls
+	.text
+	.align	2
+	.set	mips16
+	.ent	s
+	.type	s, @function
+s:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	.set	noreorder
+	.set	nomacro
+	j	$31
+	li	$2,1
+	.set	macro
+	.set	reorder
+
+	.end	s
+	.size	s, .-s
+	.align	2
+	.globl	t
+	.set	nomips16
+	.ent	t
+	.type	t, @function
+t:
+	.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
+	.mask	0x00000000,0
+	.fmask	0x00000000,0
+	.set	noreorder
+	.cpload	$25
+	.set	nomacro
+	lw	$25,%got(s)($28)
+	nop
+	addiu	$25,$25,%lo(s)
+	.reloc	1f,R_MIPS_JALR,s
+1:	jr	$25
+	nop
+
+	.set	macro
+	.set	reorder
+	.end	t
+	.size	t, .-t
diff --git a/ld/testsuite/ld-mips-elf/mips-elf.exp b/ld/testsuite/ld-mips-elf/mips-elf.exp
index ea70ea1..7b1a57b 100644
--- a/ld/testsuite/ld-mips-elf/mips-elf.exp
+++ b/ld/testsuite/ld-mips-elf/mips-elf.exp
@@ -522,3 +522,9 @@ if { $linux_gnu } {
 }
 
 run_dump_test "undefined"
+
+# Test the conversion from jr to b
+if { $linux_gnu } {
+    run_dump_test "jr-to-b-1"
+    run_dump_test "jr-to-b-2"
+}