MIPS: fix r6 testsuites

Introduce
	run_dump_test_o32l
	run_dump_test_n32l
	run_dump_test_n64l
Which use `-march=from-abi` for pre-R6 testcases,
like micromips/mips16e etc.

For cases doesn't use run_dump_test_*, we use
	-mips32r2 for micromips32
	-mips1 for mips16-32
	-march=from-abi for testcases to o32/n32/n64 both/all.

Replace `addi` with `addiu` for some cases for both r6 and pre-R6.

Introduce some new testcases for r6 with FPXX/FP64.
Introduce new testcase: comdat-reloc-r6.

Skip `default` in mips_arch_list_matching if triple is mipsisa*, due to:
  1)it will cannot match mipsr6@*.d: since mips32rN/mips64rN
    will always be used, it won't be a problem.
  2)some test think -march=mips64rN will alway true for mipsisa64rN,
    which is not true now.

This patch fix testsuite for all r6-default gnu triples:
  mipsisa32r6-linux-gnu
  mipsisa32r6el-linux-gnu
  mips-img-linux-gnu
  mipsel-img-linux-gnu
  mipsisa64r6-linux-gnu
  mipsisa64r6el-linux-gnu

1 files changed, 59 insertions, 16 deletions

diff --git a/binutils/testsuite/binutils-all/mips/mips.exp b/binutils/testsuite/binutils-all/mips/mips.exp
index 91bf327..3b7bc29 100644
--- a/binutils/testsuite/binutils-all/mips/mips.exp
+++ b/binutils/testsuite/binutils-all/mips/mips.exp
@@ -52,7 +52,8 @@ proc run_dump_test_abi { abi name args } {
 	set ldflags $abi_ldflags($abi)
 	set args [lreplace $args 0 0]
     }
-    if !$has_abi($abi) {
+    set abi_r [regsub "l$" $abi {}]
+    if !$has_abi($abi_r) {
 	lappend args {notarget *-*-*}
     }
 
@@ -74,6 +75,13 @@ proc run_dump_test_abi { abi name args } {
 proc run_dump_test_o32 { name args } {
     run_dump_test_abi o32 $name [lindex $args 0]
 }
+proc run_dump_test_o32l { name args } {
+    if {[istarget *-linux*] || [istarget *-img-elf]} {
+      run_dump_test_abi o32l $name [lindex $args 0]
+    } else {
+      run_dump_test_abi o32 $name [lindex $args 0]
+    }
+}
 
 # run_dump_test_n32 NAME ARGS
 #
@@ -82,6 +90,13 @@ proc run_dump_test_o32 { name args } {
 proc run_dump_test_n32 { name args } {
     run_dump_test_abi n32 $name [lindex $args 0]
 }
+proc run_dump_test_n32l { name args } {
+    if {[istarget *-linux*] || [istarget *-img-elf]} {
+      run_dump_test_abi n32l $name [lindex $args 0]
+    } else {
+      run_dump_test_abi n32 $name [lindex $args 0]
+    }
+}
 
 # run_dump_test_n64 NAME ARGS
 #
@@ -90,6 +105,13 @@ proc run_dump_test_n32 { name args } {
 proc run_dump_test_n64 { name args } {
     run_dump_test_abi n64 $name [lindex $args 0]
 }
+proc run_dump_test_n64l { name args } {
+    if {[istarget *-linux*] || [istarget *-img-elf]} {
+      run_dump_test_abi n64l $name [lindex $args 0]
+    } else {
+      run_dump_test_abi n64 $name [lindex $args 0]
+    }
+}
 
 set has_abi(o32) [expr ![istarget *-*-openbsd*] \
 		     && ![istarget mips64*el-ps2-elf*]]
@@ -109,49 +131,68 @@ set has_abi(n64) [expr [istarget *-*-freebsd*] \
 		     || [istarget *-*-openbsd*]]
 
 # Set defaults.
+# ABI with l tail means legacy, aka pre-R6.
+# Please use them, if the test only suite for pre-R6,
+# such as mips16/micromips tests.
 set abi_asflags(o32) ""
+set abi_asflags(o32l) ""
 set abi_asflags(n32) ""
+set abi_asflags(n32l) ""
 set abi_asflags(n64) ""
+set abi_asflags(n64l) ""
 set abi_asflags(eabi) ""
 set abi_ldflags(o32) ""
+set abi_ldflags(o32l) ""
 set abi_ldflags(n32) ""
+set abi_ldflags(n32l) ""
 set abi_ldflags(n64) ""
+set abi_ldflags(n64l) ""
 set abi_ldflags(eabi) ""
 
 # Override as needed.
 if {[istarget *-*-openbsd*] } {
     set irixemul 0
-} elseif { [istarget mips64*-*-linux*] } {
+} elseif { [istarget mips*64*-*-linux*] } {
+    set abi_asflags(o32) -32
+    set abi_asflags(o32l) "-32 -march=from-abi"
+    set abi_asflags(n32) ""
+    set abi_asflags(n32l) "-n32 -march=from-abi"
+    set abi_asflags(n64) "-64"
+    set abi_asflags(n64l) "-march=from-abi -64"
     if [istarget *el-*-*] {
-	set abi_asflags(o32) -32
 	set abi_ldflags(o32) -melf32ltsmip
-	set abi_asflags(n64) "-march=from-abi -64"
+	set abi_ldflags(o32l) -melf32ltsmip
 	set abi_ldflags(n64) -melf64ltsmip
+	set abi_ldflags(n64l) -melf64ltsmip
     } else {
-	set abi_asflags(o32) -32
 	set abi_ldflags(o32) -melf32btsmip
-	set abi_asflags(n64) "-march=from-abi -64"
+	set abi_ldflags(o32l) -melf32btsmip
 	set abi_ldflags(n64) -melf64btsmip
+	set abi_ldflags(n64l) -melf64btsmip
     }
     set irixemul 0
-} elseif {[istarget *-*-linux*] } {
+} elseif {[istarget *-*-linux*] || [istarget *-img-elf] } {
+    set abi_asflags(o32) ""
+    set abi_asflags(o32l) "-march=from-abi"
+    set abi_asflags(n32) "-n32"
+    set abi_asflags(n32l) "-n32 -march=from-abi"
+    set abi_asflags(n64) "-64"
+    set abi_asflags(n64l) "-64 -march=from-abi"
     if [istarget *el-*-*] {
-	set abi_asflags(n32) "-march=from-abi -n32"
 	set abi_ldflags(n32) -melf32ltsmipn32
-	set abi_asflags(n64) "-march=from-abi -64"
+	set abi_ldflags(n32l) -melf32ltsmipn32
 	set abi_ldflags(n64) -melf64ltsmip
+	set abi_ldflags(n64l) -melf64ltsmip
     } else {
-	set abi_asflags(n32) "-march=from-abi -n32"
 	set abi_ldflags(n32) -melf32btsmipn32
-	set abi_asflags(n64) "-march=from-abi -64"
+	set abi_ldflags(n32l) -melf32btsmipn32
 	set abi_ldflags(n64) -melf64btsmip
+	set abi_ldflags(n64l) -melf64btsmip
     }
     set irixemul 0
-} elseif {[istarget *-img-elf*] \
-     || [istarget *-mti-elf*] \
+} elseif {[istarget *-mti-elf*] \
      || [istarget *-sde-elf*] \
      || [istarget *-*-netbsd*] \
-     || [istarget *-*-linux*] \
      || [istarget *-*-sysv4*] } {
     if [istarget *el-*-*] {
 	set abi_asflags(o32) -32
@@ -229,11 +270,13 @@ run_dump_test "mips-xpa-virt-3"
 run_dump_test "mips-xpa-virt-4"
 run_dump_test_o32 "mixed-mips16" noarch
 run_dump_test_o32 "mixed-micromips" noarch
-run_dump_test "mixed-mips16-micromips"
+run_dump_test_o32l "mixed-mips16-micromips"
+run_dump_test_n32l "mixed-mips16-micromips"
+run_dump_test_n64l "mixed-mips16-micromips"
 run_dump_test_o32 "mips16-undecoded" noarch
 run_dump_test_o32 "mips16e2-undecoded" noarch
 run_dump_test_o32 "mips16-pcrel"
-run_dump_test_o32 "mips16-extend-noinsn"
+run_dump_test_o32l "mips16-extend-noinsn"
 run_dump_test_o32 "mips16-extend-insn" noarch
 run_dump_test_o32 "mips16e2-extend-insn" noarch
 run_dump_test_o32 "mips16-alias" noarch