diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 5040e14896..f3d31e7084 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,16 @@
+2018-01-19  Ruslan Kabatsayev  <b7.10110111@gmail.com>
+
+	* gdb.arch/powerpc-d128-regs.exp: Replace expected "\[\t\]*" from
+	"info reg" with "\[ \t\]*".
+	* gdb.arch/altivec-regs.exp: Replace expected "\t" from "info reg" with
+	"\[ \t\]+".
+	* gdb.arch/s390-multiarch.exp: Ditto.
+	* gdb.base/pc-fp.exp: Ditto.
+	* gdb.reverse/i386-precsave.exp: Ditto.
+	* gdb.reverse/i386-reverse.exp: Ditto.
+	* gdb.reverse/i387-env-reverse.exp: Ditto.
+	* gdb.reverse/i387-stack-reverse.exp: Ditto.
+
 2018-01-18  Andreas Arnez  <arnez@linux.vnet.ibm.com>
 
 	* lib/gdb.exp (gdb_compile): Re-enable use of
diff --git a/gdb/testsuite/gdb.arch/altivec-regs.exp b/gdb/testsuite/gdb.arch/altivec-regs.exp
index 5f64af581e..fcff886c34 100644
--- a/gdb/testsuite/gdb.arch/altivec-regs.exp
+++ b/gdb/testsuite/gdb.arch/altivec-regs.exp
@@ -93,8 +93,8 @@ for {set i 0} {$i < 32} {incr i 1} {
         gdb_test "info reg vr$i" "vr$i.*$vector_register" "info reg vr$i"
 }
 
-gdb_test "info reg vrsave" "vrsave.*0x1\t1" "info reg vrsave"
-gdb_test "info reg vscr" "vscr.*0x1\t1" "info reg vscr"
+gdb_test "info reg vrsave" "vrsave.*0x1\[ \t\]+1" "info reg vrsave"
+gdb_test "info reg vscr" "vscr.*0x1\[ \t\]+1" "info reg vscr"
 
 # Now redo the same tests, but using the print command.
 # Note: in LE case, the char array is printed WITHOUT the last character.
diff --git a/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp b/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp
index 48ba43c42a..9ab761b92a 100644
--- a/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp
+++ b/gdb/testsuite/gdb.arch/powerpc-d128-regs.exp
@@ -56,15 +56,15 @@ gdb_test "set \$dl$i=d128" "" "set dl$i register"
 gdb_test "print \$dl$i" "\\\$$decimal = 1\.2345678910" "print dl$i register as DFP"
 
 gdb_test "info reg dl$i" \
-	 "dl$i\[ \]*1\.2345678910\[\t\]*\\(raw 0x2205800000000000000000049c5de09c\\)" \
+	 "dl$i\[ \]*1\.2345678910\[ \t\]*\\(raw 0x2205800000000000000000049c5de09c\\)" \
 	 "print dl$i register with the info reg command"
 
 gdb_test "info reg f[expr 2*$i]" \
-	 "f[expr 2*$i]\[ \]*8\.608957309287334e\-145\[\t\]*\\(raw 0x2205800000000000\\)" \
+	 "f[expr 2*$i]\[ \]*8\.608957309287334e\-145\[ \t\]*\\(raw 0x2205800000000000\\)" \
 	 "testing lower half of dl$i register"
 
 gdb_test "info reg f[expr 2*$i+1]" \
-	 "f[expr 2*$i+1]\[ \]*9\.7841140127686122e\-314\[\t\]*\\(raw 0x000000049c5de09c\\)" \
+	 "f[expr 2*$i+1]\[ \]*9\.7841140127686122e\-314\[ \t\]*\\(raw 0x000000049c5de09c\\)" \
 	 "testing upper half of dl$i register"
 
 }
diff --git a/gdb/testsuite/gdb.arch/s390-multiarch.exp b/gdb/testsuite/gdb.arch/s390-multiarch.exp
index 576fe55f04..50c7ab35ec 100644
--- a/gdb/testsuite/gdb.arch/s390-multiarch.exp
+++ b/gdb/testsuite/gdb.arch/s390-multiarch.exp
@@ -65,7 +65,7 @@ proc test_linux_v2 {} {
 
     set test "Linux v2"
     gdb_test_multiple "info reg system_call" "$test" {
-	-re "system_call\[ \t\]+0x\[0-9a-z\]+\t.*\r\n$gdb_prompt $" {
+	-re "system_call\[ \t\]+0x\[0-9a-z\]+\[ \t\]+.*\r\n$gdb_prompt $" {
 	    pass "$test"
 	    return 1
 	}
@@ -79,7 +79,7 @@ proc test_linux_v2 {} {
 
 proc test_register_valid {reg variant} {
     gdb_test "info reg $reg" \
-	"$reg\[ \t\]+0x\[0-9a-z\]+\t.*" \
+	"$reg\[ \t\]+0x\[0-9a-z\]+\[ \t\]+.*" \
 	"'$reg' exists ($variant)"
 }
 
diff --git a/gdb/testsuite/gdb.base/pc-fp.exp b/gdb/testsuite/gdb.base/pc-fp.exp
index 5230b2b0d6..8a81db4e9a 100644
--- a/gdb/testsuite/gdb.base/pc-fp.exp
+++ b/gdb/testsuite/gdb.base/pc-fp.exp
@@ -58,4 +58,4 @@ gdb_test "info register \$fp" "${valueof_fp}.*"
 # Regression test for
 # http://sourceware.org/bugzilla/show_bug.cgi?id=12659
 gdb_test "info register pc fp" \
-    "pc +${valueof_pc}\t${valueof_pc} <.*>\[\r\n\]+fp +${valueof_fp}\t${valueof_fp}\[\r\n\]+"
+    "pc +${valueof_pc}\[ \t\]+${valueof_pc} <.*>\[\r\n\]+fp +${valueof_fp}\[ \t\]+${valueof_fp}\[\r\n\]+"
diff --git a/gdb/testsuite/gdb.reverse/i386-precsave.exp b/gdb/testsuite/gdb.reverse/i386-precsave.exp
index d52fd2fe2e..fa14116372 100644
--- a/gdb/testsuite/gdb.reverse/i386-precsave.exp
+++ b/gdb/testsuite/gdb.reverse/i386-precsave.exp
@@ -74,7 +74,7 @@ gdb_test "record restore $precsave" \
 gdb_test "step" "inc .eax.*" "step to inc eax 1st time"
 send_gdb "info reg eax\n"
 gdb_expect {
-    -re "eax *($hex)\t.*$gdb_prompt " {
+    -re "eax *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_eax $expect_out(1,string)
     }
 }
@@ -82,7 +82,7 @@ gdb_expect {
 gdb_test "step" "inc .ecx.*" "step to inc ecx 1st time"
 send_gdb "info reg ecx\n"
 gdb_expect {
-    -re "ecx *($hex)\t.*$gdb_prompt " {
+    -re "ecx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_ecx $expect_out(1,string)
     }
 }
@@ -90,7 +90,7 @@ gdb_expect {
 gdb_test "step" "inc .edx.*" "step to inc edx 1st time"
 send_gdb "info reg edx\n"
 gdb_expect {
-    -re "edx *($hex)\t.*$gdb_prompt " {
+    -re "edx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_edx $expect_out(1,string)
     }
 }
@@ -98,7 +98,7 @@ gdb_expect {
 gdb_test "step" "inc .ebx.*" "step to inc ebx 1st time"
 send_gdb "info reg ebx\n"
 gdb_expect {
-    -re "ebx *($hex)\t.*$gdb_prompt " {
+    -re "ebx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_ebx $expect_out(1,string)
     }
 }
@@ -106,7 +106,7 @@ gdb_expect {
 gdb_test "step" "inc .esp.*" "step to inc esp 1st time"
 send_gdb "info reg esp\n"
 gdb_expect {
-    -re "esp *($hex)\t.*$gdb_prompt " {
+    -re "esp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_esp $expect_out(1,string)
     }
 }
@@ -114,7 +114,7 @@ gdb_expect {
 gdb_test "step" "inc .ebp.*" "step to inc ebp 1st time"
 send_gdb "info reg ebp\n"
 gdb_expect {
-    -re "ebp *($hex)\t.*$gdb_prompt " {
+    -re "ebp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_ebp $expect_out(1,string)
     }
 }
@@ -122,7 +122,7 @@ gdb_expect {
 gdb_test "step" "inc .esi.*" "step to inc esi 1st time"
 send_gdb "info reg esi\n"
 gdb_expect {
-    -re "esi *($hex)\t.*$gdb_prompt " {
+    -re "esi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_esi $expect_out(1,string)
     }
 }
@@ -130,7 +130,7 @@ gdb_expect {
 gdb_test "step" "inc .edi.*" "step to inc edi 1st time"
 send_gdb "info reg edi\n"
 gdb_expect {
-    -re "edi *($hex)\t.*$gdb_prompt " {
+    -re "edi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_edi $expect_out(1,string)
     }
 }
@@ -138,7 +138,7 @@ gdb_expect {
 gdb_test "step" "dec .eax.*" "step to dec eax 1st time"
 send_gdb "info reg eax\n"
 gdb_expect {
-    -re "eax *($hex)\t.*$gdb_prompt " {
+    -re "eax *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_eax $expect_out(1,string)
     }
 }
@@ -146,7 +146,7 @@ gdb_expect {
 gdb_test "step" "dec .ecx.*" "step to dec ecx 1st time"
 send_gdb "info reg ecx\n"
 gdb_expect {
-    -re "ecx *($hex)\t.*$gdb_prompt " {
+    -re "ecx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_ecx $expect_out(1,string)
     }
 }
@@ -154,7 +154,7 @@ gdb_expect {
 gdb_test "step" "dec .edx.*" "step to dec edx 1st time"
 send_gdb "info reg edx\n"
 gdb_expect {
-    -re "edx *($hex)\t.*$gdb_prompt " {
+    -re "edx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_edx $expect_out(1,string)
     }
 }
@@ -162,7 +162,7 @@ gdb_expect {
 gdb_test "step" "dec .ebx.*" "step to dec ebx 1st time"
 send_gdb "info reg ebx\n"
 gdb_expect {
-    -re "ebx *($hex)\t.*$gdb_prompt " {
+    -re "ebx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_ebx $expect_out(1,string)
     }
 }
@@ -170,7 +170,7 @@ gdb_expect {
 gdb_test "step" "dec .esp.*" "step to dec esp 1st time"
 send_gdb "info reg esp\n"
 gdb_expect {
-    -re "esp *($hex)\t.*$gdb_prompt " {
+    -re "esp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_esp $expect_out(1,string)
     }
 }
@@ -178,7 +178,7 @@ gdb_expect {
 gdb_test "step" "dec .ebp.*" "step to dec ebp 1st time"
 send_gdb "info reg ebp\n"
 gdb_expect {
-    -re "ebp *($hex)\t.*$gdb_prompt " {
+    -re "ebp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_ebp $expect_out(1,string)
     }
 }
@@ -186,7 +186,7 @@ gdb_expect {
 gdb_test "step" "dec .esi.*" "step to dec esi 1st time"
 send_gdb "info reg esi\n"
 gdb_expect {
-    -re "esi *($hex)\t.*$gdb_prompt " {
+    -re "esi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_esi $expect_out(1,string)
     }
 }
@@ -194,7 +194,7 @@ gdb_expect {
 gdb_test "step" "dec .edi.*" "step to dec edi 1st time"
 send_gdb "info reg edi\n"
 gdb_expect {
-    -re "edi *($hex)\t.*$gdb_prompt " {
+    -re "edi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_edi $expect_out(1,string)
     }
 }
@@ -221,68 +221,68 @@ gdb_test "reverse-continue" \
 # Now reverse step, and check register values.
 #
 
-gdb_test "info reg edi" "edi *$preinc_edi\t.*" "edi before reverse-dec"
+gdb_test "info reg edi" "edi *$preinc_edi\[ \t\]+.*" "edi before reverse-dec"
 gdb_test "reverse-step" "dec .edi.*" "reverse-step to dec edi"
-gdb_test "info reg edi" "edi *$predec_edi\t.*" "edi after reverse-dec"
+gdb_test "info reg edi" "edi *$predec_edi\[ \t\]+.*" "edi after reverse-dec"
 
-gdb_test "info reg esi" "esi *$preinc_esi\t.*" "esi before reverse-dec"
+gdb_test "info reg esi" "esi *$preinc_esi\[ \t\]+.*" "esi before reverse-dec"
 gdb_test "reverse-step" "dec .esi.*" "reverse-step to dec esi"
-gdb_test "info reg esi" "esi *$predec_esi\t.*" "esi after reverse-dec"
+gdb_test "info reg esi" "esi *$predec_esi\[ \t\]+.*" "esi after reverse-dec"
 
-gdb_test "info reg ebp" "ebp *$preinc_ebp\t.*" "ebp before reverse-dec"
+gdb_test "info reg ebp" "ebp *$preinc_ebp\[ \t\]+.*" "ebp before reverse-dec"
 gdb_test "reverse-step" "dec .ebp.*" "reverse-step to dec ebp"
-gdb_test "info reg ebp" "ebp *$predec_ebp\t.*" "ebp after reverse-dec"
+gdb_test "info reg ebp" "ebp *$predec_ebp\[ \t\]+.*" "ebp after reverse-dec"
 
-gdb_test "info reg esp" "esp *$preinc_esp\t.*" "esp before reverse-dec"
+gdb_test "info reg esp" "esp *$preinc_esp\[ \t\]+.*" "esp before reverse-dec"
 gdb_test "reverse-step" "dec .esp.*" "reverse-step to dec esp"
-gdb_test "info reg esp" "esp *$predec_esp\t.*" "esp after reverse-dec"
+gdb_test "info reg esp" "esp *$predec_esp\[ \t\]+.*" "esp after reverse-dec"
 
-gdb_test "info reg ebx" "ebx *$preinc_ebx\t.*" "ebx before reverse-dec"
+gdb_test "info reg ebx" "ebx *$preinc_ebx\[ \t\]+.*" "ebx before reverse-dec"
 gdb_test "reverse-step" "dec .ebx.*" "reverse-step to dec ebx"
-gdb_test "info reg ebx" "ebx *$predec_ebx\t.*" "ebx after reverse-dec"
+gdb_test "info reg ebx" "ebx *$predec_ebx\[ \t\]+.*" "ebx after reverse-dec"
 
-gdb_test "info reg edx" "edx *$preinc_edx\t.*" "edx before reverse-dec"
+gdb_test "info reg edx" "edx *$preinc_edx\[ \t\]+.*" "edx before reverse-dec"
 gdb_test "reverse-step" "dec .edx.*" "reverse-step to dec edx"
-gdb_test "info reg edx" "edx *$predec_edx\t.*" "edx after reverse-dec"
+gdb_test "info reg edx" "edx *$predec_edx\[ \t\]+.*" "edx after reverse-dec"
 
-gdb_test "info reg ecx" "ecx *$preinc_ecx\t.*" "ecx before reverse-dec"
+gdb_test "info reg ecx" "ecx *$preinc_ecx\[ \t\]+.*" "ecx before reverse-dec"
 gdb_test "reverse-step" "dec .ecx.*" "reverse-step to dec ecx"
-gdb_test "info reg ecx" "ecx *$predec_ecx\t.*" "ecx after reverse-dec"
+gdb_test "info reg ecx" "ecx *$predec_ecx\[ \t\]+.*" "ecx after reverse-dec"
 
-gdb_test "info reg eax" "eax *$preinc_eax\t.*" "eax before reverse-dec"
+gdb_test "info reg eax" "eax *$preinc_eax\[ \t\]+.*" "eax before reverse-dec"
 gdb_test "reverse-step" "dec .eax.*" "reverse-step to dec eax"
-gdb_test "info reg eax" "eax *$predec_eax\t.*" "eax after reverse-dec"
+gdb_test "info reg eax" "eax *$predec_eax\[ \t\]+.*" "eax after reverse-dec"
 
-gdb_test "info reg edi" "edi *$predec_edi\t.*" "edi before reverse-inc"
+gdb_test "info reg edi" "edi *$predec_edi\[ \t\]+.*" "edi before reverse-inc"
 gdb_test "reverse-step" "inc .edi.*" "reverse-step to inc edi"
-gdb_test "info reg edi" "edi *$preinc_edi\t.*" "edi after reverse-inc"
+gdb_test "info reg edi" "edi *$preinc_edi\[ \t\]+.*" "edi after reverse-inc"
 
-gdb_test "info reg esi" "esi *$predec_esi\t.*" "esi before reverse-inc"
+gdb_test "info reg esi" "esi *$predec_esi\[ \t\]+.*" "esi before reverse-inc"
 gdb_test "reverse-step" "inc .esi.*" "reverse-step to inc esi"
-gdb_test "info reg esi" "esi *$preinc_esi\t.*" "esi after reverse-inc"
+gdb_test "info reg esi" "esi *$preinc_esi\[ \t\]+.*" "esi after reverse-inc"
 
-gdb_test "info reg ebp" "ebp *$predec_ebp\t.*" "ebp before reverse-inc"
+gdb_test "info reg ebp" "ebp *$predec_ebp\[ \t\]+.*" "ebp before reverse-inc"
 gdb_test "reverse-step" "inc .ebp.*" "reverse-step to inc ebp"
-gdb_test "info reg ebp" "ebp *$preinc_ebp\t.*" "ebp after reverse-inc"
+gdb_test "info reg ebp" "ebp *$preinc_ebp\[ \t\]+.*" "ebp after reverse-inc"
 
-gdb_test "info reg esp" "esp *$predec_esp\t.*" "esp before reverse-inc"
+gdb_test "info reg esp" "esp *$predec_esp\[ \t\]+.*" "esp before reverse-inc"
 gdb_test "reverse-step" "inc .esp.*" "reverse-step to inc esp"
-gdb_test "info reg esp" "esp *$preinc_esp\t.*" "esp after reverse-inc"
+gdb_test "info reg esp" "esp *$preinc_esp\[ \t\]+.*" "esp after reverse-inc"
 
-gdb_test "info reg ebx" "ebx *$predec_ebx\t.*" "ebx before reverse-inc"
+gdb_test "info reg ebx" "ebx *$predec_ebx\[ \t\]+.*" "ebx before reverse-inc"
 gdb_test "reverse-step" "inc .ebx.*" "reverse-step to inc ebx"
-gdb_test "info reg ebx" "ebx *$preinc_ebx\t.*" "ebx after reverse-inc"
+gdb_test "info reg ebx" "ebx *$preinc_ebx\[ \t\]+.*" "ebx after reverse-inc"
 
-gdb_test "info reg edx" "edx *$predec_edx\t.*" "edx before reverse-inc"
+gdb_test "info reg edx" "edx *$predec_edx\[ \t\]+.*" "edx before reverse-inc"
 gdb_test "reverse-step" "inc .edx.*" "reverse-step to inc edx"
-gdb_test "info reg edx" "edx *$preinc_edx\t.*" "edx after reverse-inc"
+gdb_test "info reg edx" "edx *$preinc_edx\[ \t\]+.*" "edx after reverse-inc"
 
-gdb_test "info reg ecx" "ecx *$predec_ecx\t.*" "ecx before reverse-inc"
+gdb_test "info reg ecx" "ecx *$predec_ecx\[ \t\]+.*" "ecx before reverse-inc"
 gdb_test "reverse-step" "inc .ecx.*" "reverse-step to inc ecx"
-gdb_test "info reg ecx" "ecx *$preinc_ecx\t.*" "ecx after reverse-inc"
+gdb_test "info reg ecx" "ecx *$preinc_ecx\[ \t\]+.*" "ecx after reverse-inc"
 
-gdb_test "info reg eax" "eax *$predec_eax\t.*" "eax before reverse-inc"
+gdb_test "info reg eax" "eax *$predec_eax\[ \t\]+.*" "eax before reverse-inc"
 gdb_test "reverse-step" "inc .eax.*" "reverse-step to inc eax"
-gdb_test "info reg eax" "eax *$preinc_eax\t.*" "eax after reverse-inc"
+gdb_test "info reg eax" "eax *$preinc_eax\[ \t\]+.*" "eax after reverse-inc"
 
 
diff --git a/gdb/testsuite/gdb.reverse/i386-reverse.exp b/gdb/testsuite/gdb.reverse/i386-reverse.exp
index 753a2dd8a4..a83e1df568 100644
--- a/gdb/testsuite/gdb.reverse/i386-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/i386-reverse.exp
@@ -55,7 +55,7 @@ global decimal
 gdb_test "step" "inc .eax.*" "step to inc eax 1st time"
 send_gdb "info reg eax\n"
 gdb_expect {
-    -re "eax *($hex)\t.*$gdb_prompt " {
+    -re "eax *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_eax $expect_out(1,string)
     }
 }
@@ -63,7 +63,7 @@ gdb_expect {
 gdb_test "step" "inc .ecx.*" "step to inc ecx 1st time"
 send_gdb "info reg ecx\n"
 gdb_expect {
-    -re "ecx *($hex)\t.*$gdb_prompt " {
+    -re "ecx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_ecx $expect_out(1,string)
     }
 }
@@ -71,7 +71,7 @@ gdb_expect {
 gdb_test "step" "inc .edx.*" "step to inc edx 1st time"
 send_gdb "info reg edx\n"
 gdb_expect {
-    -re "edx *($hex)\t.*$gdb_prompt " {
+    -re "edx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_edx $expect_out(1,string)
     }
 }
@@ -79,7 +79,7 @@ gdb_expect {
 gdb_test "step" "inc .ebx.*" "step to inc ebx 1st time"
 send_gdb "info reg ebx\n"
 gdb_expect {
-    -re "ebx *($hex)\t.*$gdb_prompt " {
+    -re "ebx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_ebx $expect_out(1,string)
     }
 }
@@ -87,7 +87,7 @@ gdb_expect {
 gdb_test "step" "inc .esp.*" "step to inc esp 1st time"
 send_gdb "info reg esp\n"
 gdb_expect {
-    -re "esp *($hex)\t.*$gdb_prompt " {
+    -re "esp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_esp $expect_out(1,string)
     }
 }
@@ -95,7 +95,7 @@ gdb_expect {
 gdb_test "step" "inc .ebp.*" "step to inc ebp 1st time"
 send_gdb "info reg ebp\n"
 gdb_expect {
-    -re "ebp *($hex)\t.*$gdb_prompt " {
+    -re "ebp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_ebp $expect_out(1,string)
     }
 }
@@ -103,7 +103,7 @@ gdb_expect {
 gdb_test "step" "inc .esi.*" "step to inc esi 1st time"
 send_gdb "info reg esi\n"
 gdb_expect {
-    -re "esi *($hex)\t.*$gdb_prompt " {
+    -re "esi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_esi $expect_out(1,string)
     }
 }
@@ -111,7 +111,7 @@ gdb_expect {
 gdb_test "step" "inc .edi.*" "step to inc edi 1st time"
 send_gdb "info reg edi\n"
 gdb_expect {
-    -re "edi *($hex)\t.*$gdb_prompt " {
+    -re "edi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set preinc_edi $expect_out(1,string)
     }
 }
@@ -119,7 +119,7 @@ gdb_expect {
 gdb_test "step" "dec .eax.*" "step to dec eax 1st time"
 send_gdb "info reg eax\n"
 gdb_expect {
-    -re "eax *($hex)\t.*$gdb_prompt " {
+    -re "eax *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_eax $expect_out(1,string)
     }
 }
@@ -127,7 +127,7 @@ gdb_expect {
 gdb_test "step" "dec .ecx.*" "step to dec ecx 1st time"
 send_gdb "info reg ecx\n"
 gdb_expect {
-    -re "ecx *($hex)\t.*$gdb_prompt " {
+    -re "ecx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_ecx $expect_out(1,string)
     }
 }
@@ -135,7 +135,7 @@ gdb_expect {
 gdb_test "step" "dec .edx.*" "step to dec edx 1st time"
 send_gdb "info reg edx\n"
 gdb_expect {
-    -re "edx *($hex)\t.*$gdb_prompt " {
+    -re "edx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_edx $expect_out(1,string)
     }
 }
@@ -143,7 +143,7 @@ gdb_expect {
 gdb_test "step" "dec .ebx.*" "step to dec ebx 1st time"
 send_gdb "info reg ebx\n"
 gdb_expect {
-    -re "ebx *($hex)\t.*$gdb_prompt " {
+    -re "ebx *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_ebx $expect_out(1,string)
     }
 }
@@ -151,7 +151,7 @@ gdb_expect {
 gdb_test "step" "dec .esp.*" "step to dec esp 1st time"
 send_gdb "info reg esp\n"
 gdb_expect {
-    -re "esp *($hex)\t.*$gdb_prompt " {
+    -re "esp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_esp $expect_out(1,string)
     }
 }
@@ -159,7 +159,7 @@ gdb_expect {
 gdb_test "step" "dec .ebp.*" "step to dec ebp 1st time"
 send_gdb "info reg ebp\n"
 gdb_expect {
-    -re "ebp *($hex)\t.*$gdb_prompt " {
+    -re "ebp *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_ebp $expect_out(1,string)
     }
 }
@@ -167,7 +167,7 @@ gdb_expect {
 gdb_test "step" "dec .esi.*" "step to dec esi 1st time"
 send_gdb "info reg esi\n"
 gdb_expect {
-    -re "esi *($hex)\t.*$gdb_prompt " {
+    -re "esi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_esi $expect_out(1,string)
     }
 }
@@ -175,7 +175,7 @@ gdb_expect {
 gdb_test "step" "dec .edi.*" "step to dec edi 1st time"
 send_gdb "info reg edi\n"
 gdb_expect {
-    -re "edi *($hex)\t.*$gdb_prompt " {
+    -re "edi *($hex)\[ \t\]+.*$gdb_prompt " {
 	set predec_edi $expect_out(1,string)
     }
 }
@@ -202,68 +202,68 @@ gdb_test "reverse-continue" \
 # Now reverse step, and check register values.
 #
 
-gdb_test "info reg edi" "edi *$preinc_edi\t.*" "edi before reverse-dec"
+gdb_test "info reg edi" "edi *$preinc_edi\[ \t\]+.*" "edi before reverse-dec"
 gdb_test "reverse-step" "dec .edi.*" "reverse-step to dec edi"
-gdb_test "info reg edi" "edi *$predec_edi\t.*" "edi after reverse-dec"
+gdb_test "info reg edi" "edi *$predec_edi\[ \t\]+.*" "edi after reverse-dec"
 
-gdb_test "info reg esi" "esi *$preinc_esi\t.*" "esi before reverse-dec"
+gdb_test "info reg esi" "esi *$preinc_esi\[ \t\]+.*" "esi before reverse-dec"
 gdb_test "reverse-step" "dec .esi.*" "reverse-step to dec esi"
-gdb_test "info reg esi" "esi *$predec_esi\t.*" "esi after reverse-dec"
+gdb_test "info reg esi" "esi *$predec_esi\[ \t\]+.*" "esi after reverse-dec"
 
-gdb_test "info reg ebp" "ebp *$preinc_ebp\t.*" "ebp before reverse-dec"
+gdb_test "info reg ebp" "ebp *$preinc_ebp\[ \t\]+.*" "ebp before reverse-dec"
 gdb_test "reverse-step" "dec .ebp.*" "reverse-step to dec ebp"
-gdb_test "info reg ebp" "ebp *$predec_ebp\t.*" "ebp after reverse-dec"
+gdb_test "info reg ebp" "ebp *$predec_ebp\[ \t\]+.*" "ebp after reverse-dec"
 
-gdb_test "info reg esp" "esp *$preinc_esp\t.*" "esp before reverse-dec"
+gdb_test "info reg esp" "esp *$preinc_esp\[ \t\]+.*" "esp before reverse-dec"
 gdb_test "reverse-step" "dec .esp.*" "reverse-step to dec esp"
-gdb_test "info reg esp" "esp *$predec_esp\t.*" "esp after reverse-dec"
+gdb_test "info reg esp" "esp *$predec_esp\[ \t\]+.*" "esp after reverse-dec"
 
-gdb_test "info reg ebx" "ebx *$preinc_ebx\t.*" "ebx before reverse-dec"
+gdb_test "info reg ebx" "ebx *$preinc_ebx\[ \t\]+.*" "ebx before reverse-dec"
 gdb_test "reverse-step" "dec .ebx.*" "reverse-step to dec ebx"
-gdb_test "info reg ebx" "ebx *$predec_ebx\t.*" "ebx after reverse-dec"
+gdb_test "info reg ebx" "ebx *$predec_ebx\[ \t\]+.*" "ebx after reverse-dec"
 
-gdb_test "info reg edx" "edx *$preinc_edx\t.*" "edx before reverse-dec"
+gdb_test "info reg edx" "edx *$preinc_edx\[ \t\]+.*" "edx before reverse-dec"
 gdb_test "reverse-step" "dec .edx.*" "reverse-step to dec edx"
-gdb_test "info reg edx" "edx *$predec_edx\t.*" "edx after reverse-dec"
+gdb_test "info reg edx" "edx *$predec_edx\[ \t\]+.*" "edx after reverse-dec"
 
-gdb_test "info reg ecx" "ecx *$preinc_ecx\t.*" "ecx before reverse-dec"
+gdb_test "info reg ecx" "ecx *$preinc_ecx\[ \t\]+.*" "ecx before reverse-dec"
 gdb_test "reverse-step" "dec .ecx.*" "reverse-step to dec ecx"
-gdb_test "info reg ecx" "ecx *$predec_ecx\t.*" "ecx after reverse-dec"
+gdb_test "info reg ecx" "ecx *$predec_ecx\[ \t\]+.*" "ecx after reverse-dec"
 
-gdb_test "info reg eax" "eax *$preinc_eax\t.*" "eax before reverse-dec"
+gdb_test "info reg eax" "eax *$preinc_eax\[ \t\]+.*" "eax before reverse-dec"
 gdb_test "reverse-step" "dec .eax.*" "reverse-step to dec eax"
-gdb_test "info reg eax" "eax *$predec_eax\t.*" "eax after reverse-dec"
+gdb_test "info reg eax" "eax *$predec_eax\[ \t\]+.*" "eax after reverse-dec"
 
-gdb_test "info reg edi" "edi *$predec_edi\t.*" "edi before reverse-inc"
+gdb_test "info reg edi" "edi *$predec_edi\[ \t\]+.*" "edi before reverse-inc"
 gdb_test "reverse-step" "inc .edi.*" "reverse-step to inc edi"
-gdb_test "info reg edi" "edi *$preinc_edi\t.*" "edi after reverse-inc"
+gdb_test "info reg edi" "edi *$preinc_edi\[ \t\]+.*" "edi after reverse-inc"
 
-gdb_test "info reg esi" "esi *$predec_esi\t.*" "esi before reverse-inc"
+gdb_test "info reg esi" "esi *$predec_esi\[ \t\]+.*" "esi before reverse-inc"
 gdb_test "reverse-step" "inc .esi.*" "reverse-step to inc esi"
-gdb_test "info reg esi" "esi *$preinc_esi\t.*" "esi after reverse-inc"
+gdb_test "info reg esi" "esi *$preinc_esi\[ \t\]+.*" "esi after reverse-inc"
 
-gdb_test "info reg ebp" "ebp *$predec_ebp\t.*" "ebp before reverse-inc"
+gdb_test "info reg ebp" "ebp *$predec_ebp\[ \t\]+.*" "ebp before reverse-inc"
 gdb_test "reverse-step" "inc .ebp.*" "reverse-step to inc ebp"
-gdb_test "info reg ebp" "ebp *$preinc_ebp\t.*" "ebp after reverse-inc"
+gdb_test "info reg ebp" "ebp *$preinc_ebp\[ \t\]+.*" "ebp after reverse-inc"
 
-gdb_test "info reg esp" "esp *$predec_esp\t.*" "esp before reverse-inc"
+gdb_test "info reg esp" "esp *$predec_esp\[ \t\]+.*" "esp before reverse-inc"
 gdb_test "reverse-step" "inc .esp.*" "reverse-step to inc esp"
-gdb_test "info reg esp" "esp *$preinc_esp\t.*" "esp after reverse-inc"
+gdb_test "info reg esp" "esp *$preinc_esp\[ \t\]+.*" "esp after reverse-inc"
 
-gdb_test "info reg ebx" "ebx *$predec_ebx\t.*" "ebx before reverse-inc"
+gdb_test "info reg ebx" "ebx *$predec_ebx\[ \t\]+.*" "ebx before reverse-inc"
 gdb_test "reverse-step" "inc .ebx.*" "reverse-step to inc ebx"
-gdb_test "info reg ebx" "ebx *$preinc_ebx\t.*" "ebx after reverse-inc"
+gdb_test "info reg ebx" "ebx *$preinc_ebx\[ \t\]+.*" "ebx after reverse-inc"
 
-gdb_test "info reg edx" "edx *$predec_edx\t.*" "edx before reverse-inc"
+gdb_test "info reg edx" "edx *$predec_edx\[ \t\]+.*" "edx before reverse-inc"
 gdb_test "reverse-step" "inc .edx.*" "reverse-step to inc edx"
-gdb_test "info reg edx" "edx *$preinc_edx\t.*" "edx after reverse-inc"
+gdb_test "info reg edx" "edx *$preinc_edx\[ \t\]+.*" "edx after reverse-inc"
 
-gdb_test "info reg ecx" "ecx *$predec_ecx\t.*" "ecx before reverse-inc"
+gdb_test "info reg ecx" "ecx *$predec_ecx\[ \t\]+.*" "ecx before reverse-inc"
 gdb_test "reverse-step" "inc .ecx.*" "reverse-step to inc ecx"
-gdb_test "info reg ecx" "ecx *$preinc_ecx\t.*" "ecx after reverse-inc"
+gdb_test "info reg ecx" "ecx *$preinc_ecx\[ \t\]+.*" "ecx after reverse-inc"
 
-gdb_test "info reg eax" "eax *$predec_eax\t.*" "eax before reverse-inc"
+gdb_test "info reg eax" "eax *$predec_eax\[ \t\]+.*" "eax before reverse-inc"
 gdb_test "reverse-step" "inc .eax.*" "reverse-step to inc eax"
-gdb_test "info reg eax" "eax *$preinc_eax\t.*" "eax after reverse-inc"
+gdb_test "info reg eax" "eax *$preinc_eax\[ \t\]+.*" "eax after reverse-inc"
 
 
diff --git a/gdb/testsuite/gdb.reverse/i387-env-reverse.exp b/gdb/testsuite/gdb.reverse/i387-env-reverse.exp
index 63e99d5a1f..cffbc46ec3 100644
--- a/gdb/testsuite/gdb.reverse/i387-env-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/i387-env-reverse.exp
@@ -63,68 +63,68 @@ gdb_test "n" "asm.*frstor.*"              "restore FPU env"
 gdb_test "n" "asm.*fstsw.*"               "store status word in EAX"
 gdb_test "n" "asm.*fld1.*"                "push st0"
 
-gdb_test "info register eax" "eax *0x8040000.*\t.*"  "verify eax == 0x8040000"
-gdb_test "info register fstat" "fstat *0.*\t.*"      "verify fstat == 0"
-gdb_test "info register ftag" "ftag *0xffff.*\t.*"   "verify ftag == 0xffff"
+gdb_test "info register eax" "eax *0x8040000.*\[ \t\]+.*"  "verify eax == 0x8040000"
+gdb_test "info register fstat" "fstat *0.*\[ \t\]+.*"      "verify fstat == 0"
+gdb_test "info register ftag" "ftag *0xffff.*\[ \t\]+.*"   "verify ftag == 0xffff"
 
 gdb_test "stepi" "asm.*fldl2t.*"                      "push st0"
-gdb_test "info register fstat" "fstat *0x3800.*\t.*"  "verify fstat == 0x3800"
-gdb_test "info register ftag" "ftag *0x3fff.*\t.*"    "verify ftag  == 0x3fff"
+gdb_test "info register fstat" "fstat *0x3800.*\[ \t\]+.*"  "verify fstat == 0x3800"
+gdb_test "info register ftag" "ftag *0x3fff.*\[ \t\]+.*"    "verify ftag  == 0x3fff"
 
 gdb_test "stepi" "asm.*fldl2e.*"                  "push st0"
-gdb_test "info register fstat" "fstat *0x3000.*\t.*"  "verify fstat == 0x3000"
-gdb_test "info register ftag" "ftag *0xfff.*\t.*"     "verify ftag  == 0xfff"
+gdb_test "info register fstat" "fstat *0x3000.*\[ \t\]+.*"  "verify fstat == 0x3000"
+gdb_test "info register ftag" "ftag *0xfff.*\[ \t\]+.*"     "verify ftag  == 0xfff"
 
 gdb_test "stepi" "asm.*fldpi.*"                   "push st0"
-gdb_test "info register fstat" "fstat *0x2800.*\t.*"  "verify fstat == 0x2800"
-gdb_test "info register ftag" "ftag *0x3ff.*\t.*"     "verify ftag  == 0x3ff"
+gdb_test "info register fstat" "fstat *0x2800.*\[ \t\]+.*"  "verify fstat == 0x2800"
+gdb_test "info register ftag" "ftag *0x3ff.*\[ \t\]+.*"     "verify ftag  == 0x3ff"
 
 gdb_test "stepi" "asm.*fldlg2.*"                  "push st0"
-gdb_test "info register fstat" "fstat *0x2000.*\t.*"  "verify fstat == 0x2000"
-gdb_test "info register ftag" "ftag *0xff.*\t.*"      "verify ftag  == 0xff"
+gdb_test "info register fstat" "fstat *0x2000.*\[ \t\]+.*"  "verify fstat == 0x2000"
+gdb_test "info register ftag" "ftag *0xff.*\[ \t\]+.*"      "verify ftag  == 0xff"
 
 gdb_test "stepi" "asm.*fldln2.*"                  "push st0"
-gdb_test "info register fstat" "fstat *0x1800.*\t.*"  "verify fstat == 0x1800"
-gdb_test "info register ftag" "ftag *0x3f.*\t.*"      "verify ftag  == 0x3f"
+gdb_test "info register fstat" "fstat *0x1800.*\[ \t\]+.*"  "verify fstat == 0x1800"
+gdb_test "info register ftag" "ftag *0x3f.*\[ \t\]+.*"      "verify ftag  == 0x3f"
 
 gdb_test "stepi" "asm.*fldz.*"                    "push st0"
-gdb_test "info register fstat" "fstat *0x1000.*\t.*"  "verify fstat == 0x1000"
-gdb_test "info register ftag" "ftag *0xf.*\t.*"       "verify ftag  == 0xf"
+gdb_test "info register fstat" "fstat *0x1000.*\[ \t\]+.*"  "verify fstat == 0x1000"
+gdb_test "info register ftag" "ftag *0xf.*\[ \t\]+.*"       "verify ftag  == 0xf"
 
 gdb_test "stepi" "asm.*nop.*"                    "push st0"
-gdb_test "info register fstat" "fstat *0x800.*\t.*"  "verify fstat == 0x800"
-gdb_test "info register ftag" "ftag *0x7.*\t.*"      "verify ftag  == 0x7"
+gdb_test "info register fstat" "fstat *0x800.*\[ \t\]+.*"  "verify fstat == 0x800"
+gdb_test "info register ftag" "ftag *0x7.*\[ \t\]+.*"      "verify ftag  == 0x7"
 
 
 # move backward and ehck we get the same registers back.
 
 gdb_test "reverse-stepi" "asm.*fldz.*"           "push st0"
-gdb_test "info register fstat" "fstat *0x1000.*\t.*" "verify fstat == 0x1000"
-gdb_test "info register ftag" "ftag *0xf.*\t.*"      "verify ftag  == 0xf"
+gdb_test "info register fstat" "fstat *0x1000.*\[ \t\]+.*" "verify fstat == 0x1000"
+gdb_test "info register ftag" "ftag *0xf.*\[ \t\]+.*"      "verify ftag  == 0xf"
 
 gdb_test "reverse-stepi" "asm.*fldln2.*"          "push st0"
-gdb_test "info register fstat" "fstat *0x1800.*\t.*"  "verify fstat == 0x1800"
-gdb_test "info register ftag" "ftag *0x3f.*\t.*"      "verify ftag  == 0x3f"
+gdb_test "info register fstat" "fstat *0x1800.*\[ \t\]+.*"  "verify fstat == 0x1800"
+gdb_test "info register ftag" "ftag *0x3f.*\[ \t\]+.*"      "verify ftag  == 0x3f"
 
 gdb_test "reverse-stepi" "asm.*fldlg2.*"          "push st0"
-gdb_test "info register fstat" "fstat *0x2000.*\t.*"  "verify fstat == 0x2000"
-gdb_test "info register ftag" "ftag *0xff.*\t.*"      "verify ftag  == 0xff"
+gdb_test "info register fstat" "fstat *0x2000.*\[ \t\]+.*"  "verify fstat == 0x2000"
+gdb_test "info register ftag" "ftag *0xff.*\[ \t\]+.*"      "verify ftag  == 0xff"
 
 gdb_test "reverse-stepi" "asm.*fldpi.*"          "push st0"
-gdb_test "info register fstat" "fstat *0x2800.*\t.*" "verify fstat == 0x2800"
-gdb_test "info register ftag" "ftag *0x3ff.*\t.*"    "verify ftag  == 0x3ff"
+gdb_test "info register fstat" "fstat *0x2800.*\[ \t\]+.*" "verify fstat == 0x2800"
+gdb_test "info register ftag" "ftag *0x3ff.*\[ \t\]+.*"    "verify ftag  == 0x3ff"
 
 gdb_test "reverse-stepi" "asm.*fldl2e.*"          "push st0"
-gdb_test "info register fstat" "fstat *0x3000.*\t.*"  "verify fstat == 0x3000"
-gdb_test "info register ftag" "ftag *0xfff.*\t.*"     "verify ftag  == 0xfff"
+gdb_test "info register fstat" "fstat *0x3000.*\[ \t\]+.*"  "verify fstat == 0x3000"
+gdb_test "info register ftag" "ftag *0xfff.*\[ \t\]+.*"     "verify ftag  == 0xfff"
 
 gdb_test "reverse-stepi" "asm.*fldl2t.*"          "push st0"
-gdb_test "info register fstat" "fstat *0x3800.*\t.*"  "verify fstat == 0x3800"
-gdb_test "info register ftag" "ftag *0x3fff.*\t.*"    "verify ftag  == 0x3fff"
+gdb_test "info register fstat" "fstat *0x3800.*\[ \t\]+.*"  "verify fstat == 0x3800"
+gdb_test "info register ftag" "ftag *0x3fff.*\[ \t\]+.*"    "verify ftag  == 0x3fff"
 
 gdb_test "reverse-stepi" "asm.*fld1.*"            "push st0"
-gdb_test "info register fstat" "fstat *0.*\t.*"       "verify fstat == 0"
-gdb_test "info register ftag" "ftag *0xffff.*\t.*"    "verify ftag == 0xffff"
+gdb_test "info register fstat" "fstat *0.*\[ \t\]+.*"       "verify fstat == 0"
+gdb_test "info register ftag" "ftag *0xffff.*\[ \t\]+.*"    "verify ftag == 0xffff"
 
 
 
diff --git a/gdb/testsuite/gdb.reverse/i387-stack-reverse.exp b/gdb/testsuite/gdb.reverse/i387-stack-reverse.exp
index e445d17149..43d6169e9d 100644
--- a/gdb/testsuite/gdb.reverse/i387-stack-reverse.exp
+++ b/gdb/testsuite/gdb.reverse/i387-stack-reverse.exp
@@ -56,102 +56,102 @@ set location [gdb_get_line_number "test st0 register"]
 gdb_test "until $location" ".*$srcfile:$location.*asm.*fld1.*" \
     "begin test st0"
 gdb_test "stepi" "asm.*fldl2t.*"              "push st0 == 1"
-gdb_test "info register st0" "st0 *1\t.*"     "verify st0 == 1"
+gdb_test "info register st0" "st0 *1\[ \t\]+.*"     "verify st0 == 1"
 
 
 gdb_test "stepi" "asm.*fldl2e.*"              "push st0 == 3.3219280948*"
-gdb_test "info register st0" "st0 *3.32192.*\t.*" "verify st0 == 3.321928094*"
-gdb_test "info register st1" "st1 *1\t.*"       "verify st1 == 1"
+gdb_test "info register st0" "st0 *3.32192.*\[ \t\]+.*" "verify st0 == 3.321928094*"
+gdb_test "info register st1" "st1 *1\[ \t\]+.*"       "verify st1 == 1"
 
 gdb_test "stepi" "asm.*fldpi.*"                   "push st0 == 1.4426950406*"
-gdb_test "info register st0" "st0 *1.44269.*\t.*" "verify st0 == 1.442695040*"
-gdb_test "info register st1" "st1 *3.32192.*\t.*" "verify st1 == 3.3219280948*"
-gdb_test "info register st2" "st2 *1\t.*"         "verify st2 == 1"
+gdb_test "info register st0" "st0 *1.44269.*\[ \t\]+.*" "verify st0 == 1.442695040*"
+gdb_test "info register st1" "st1 *3.32192.*\[ \t\]+.*" "verify st1 == 3.3219280948*"
+gdb_test "info register st2" "st2 *1\[ \t\]+.*"         "verify st2 == 1"
                                                
 gdb_test "stepi" "asm.*fldlg2.*"                  "push st0 == 3.14159265*"
-gdb_test "info register st0" "st0 *3.14159.*\t.*" "verify st0 == 3.14159265*"
-gdb_test "info register st1" "st1 *1.44269.*\t.*" "verify st1 == 1.4426950*"
-gdb_test "info register st2" "st2 *3.32192.*\t.*" "verify st2 == 3.3219280*"
-gdb_test "info register st3" "st3 *1\t.*"          "verify st3 == 1"
+gdb_test "info register st0" "st0 *3.14159.*\[ \t\]+.*" "verify st0 == 3.14159265*"
+gdb_test "info register st1" "st1 *1.44269.*\[ \t\]+.*" "verify st1 == 1.4426950*"
+gdb_test "info register st2" "st2 *3.32192.*\[ \t\]+.*" "verify st2 == 3.3219280*"
+gdb_test "info register st3" "st3 *1\[ \t\]+.*"          "verify st3 == 1"
 
 gdb_test "stepi" "asm.*fldln2.*"                  "push st0 == 0.301029*"
-gdb_test "info register st0" "st0 *0.30102.*\t.*" "verify st0 == 0.301029*"
-gdb_test "info register st1" "st1 *3.14159.*\t.*" "verify st1 == 3.14159265*"
-gdb_test "info register st2" "st2 *1.44269.*\t.*" "verify st2 == 1.44269506*"
-gdb_test "info register st3" "st3 *3.32192.*\t.*" "verify st3 == 3.3219280948*"
-gdb_test "info register st4" "st4 *1\t.*"         "verify st4 == 1"
+gdb_test "info register st0" "st0 *0.30102.*\[ \t\]+.*" "verify st0 == 0.301029*"
+gdb_test "info register st1" "st1 *3.14159.*\[ \t\]+.*" "verify st1 == 3.14159265*"
+gdb_test "info register st2" "st2 *1.44269.*\[ \t\]+.*" "verify st2 == 1.44269506*"
+gdb_test "info register st3" "st3 *3.32192.*\[ \t\]+.*" "verify st3 == 3.3219280948*"
+gdb_test "info register st4" "st4 *1\[ \t\]+.*"         "verify st4 == 1"
 
 gdb_test "stepi" "asm.*fldz.*"                    "push st0 == 0.69314*"
-gdb_test "info register st0" "st0 *0.69314.*\t.*" "verify st0 == 0.69314*"
-gdb_test "info register st1" "st1 *0.30102.*\t.*" "verify st1 == 0.301029*"
-gdb_test "info register st2" "st2 *3.14159.*\t.*" "verify st2 == 3.14159265*"
-gdb_test "info register st3" "st3 *1.44269.*\t.*" "verify st3 == 1.442695040*"
-gdb_test "info register st4" "st4 *3.32192.*\t.*" "verify st4 == 3.3219280948*"
-gdb_test "info register st5" "st5 *1\t.*"         "verify st5 == 1"
+gdb_test "info register st0" "st0 *0.69314.*\[ \t\]+.*" "verify st0 == 0.69314*"
+gdb_test "info register st1" "st1 *0.30102.*\[ \t\]+.*" "verify st1 == 0.301029*"
+gdb_test "info register st2" "st2 *3.14159.*\[ \t\]+.*" "verify st2 == 3.14159265*"
+gdb_test "info register st3" "st3 *1.44269.*\[ \t\]+.*" "verify st3 == 1.442695040*"
+gdb_test "info register st4" "st4 *3.32192.*\[ \t\]+.*" "verify st4 == 3.3219280948*"
+gdb_test "info register st5" "st5 *1\[ \t\]+.*"         "verify st5 == 1"
 
 gdb_test "stepi" "asm.*fld1.*"                    "push st0 == 0"
-gdb_test "info register st0" "st0 *0\t.*"         "verify st0 == 0"
-gdb_test "info register st1" "st1 *0.69314.*\t.*" "verify st1 == 0.69314*"
-gdb_test "info register st2" "st2 *0.30102.*\t.*" "verify st2 == 0.301029*"
-gdb_test "info register st3" "st3 *3.14159.*\t.*" "verify st3 == 3.14159265*"
-gdb_test "info register st4" "st4 *1.44269.*\t.*" "verify st4 == 1.442695040*"
-gdb_test "info register st5" "st5 *3.32192.*\t.*" "verify st5 == 3.32192809*"
-gdb_test "info register st6" "st6 *1\t.*"         "verify st6 == 1"
+gdb_test "info register st0" "st0 *0\[ \t\]+.*"         "verify st0 == 0"
+gdb_test "info register st1" "st1 *0.69314.*\[ \t\]+.*" "verify st1 == 0.69314*"
+gdb_test "info register st2" "st2 *0.30102.*\[ \t\]+.*" "verify st2 == 0.301029*"
+gdb_test "info register st3" "st3 *3.14159.*\[ \t\]+.*" "verify st3 == 3.14159265*"
+gdb_test "info register st4" "st4 *1.44269.*\[ \t\]+.*" "verify st4 == 1.442695040*"
+gdb_test "info register st5" "st5 *3.32192.*\[ \t\]+.*" "verify st5 == 3.32192809*"
+gdb_test "info register st6" "st6 *1\[ \t\]+.*"         "verify st6 == 1"
 
 gdb_test "stepi" "asm.*nop.*"                     "push st0 == 0"
-gdb_test "info register st0" "st0 *1\t.*"         "verify st0 == 1"
-gdb_test "info register st1" "st1 *0\t.*"         "verify st1 == 0"
-gdb_test "info register st2" "st2 *0.69314.*\t.*" "verify st2 == 0.69314*"
-gdb_test "info register st3" "st3 *0.30102.*\t.*" "verify st3 == 0.301029*"
-gdb_test "info register st4" "st4 *3.14159.*\t.*" "verify st4 == 3.14159265*"
-gdb_test "info register st5" "st5 *1.44269.*\t.*" "verify st5 == 1.44269504*"
-gdb_test "info register st6" "st6 *3.32192.*\t.*" "verify st6 == 3.3219280948*"
+gdb_test "info register st0" "st0 *1\[ \t\]+.*"         "verify st0 == 1"
+gdb_test "info register st1" "st1 *0\[ \t\]+.*"         "verify st1 == 0"
+gdb_test "info register st2" "st2 *0.69314.*\[ \t\]+.*" "verify st2 == 0.69314*"
+gdb_test "info register st3" "st3 *0.30102.*\[ \t\]+.*" "verify st3 == 0.301029*"
+gdb_test "info register st4" "st4 *3.14159.*\[ \t\]+.*" "verify st4 == 3.14159265*"
+gdb_test "info register st5" "st5 *1.44269.*\[ \t\]+.*" "verify st5 == 1.44269504*"
+gdb_test "info register st6" "st6 *3.32192.*\[ \t\]+.*" "verify st6 == 3.3219280948*"
 gdb_test "info register st7" "st7 *1.*"           "verify st7 == 1"
 
 # Now step backward, and check that st0 value reverts to zero.
 
 gdb_test "reverse-stepi" "asm.*fld1.*"            "undo registers, st0-st7"
-gdb_test "info register st0" "st0 *0\t.*"         "verify st0 == 0"
-gdb_test "info register st1" "st1 *0.69314.*\t.*" "verify st1 == 0.69314*"
-gdb_test "info register st2" "st2 *0.30102.*\t.*" "verify st2 == 0.301029*"
-gdb_test "info register st3" "st3 *3.14159.*\t.*" "verify st3 == 3.14159265*"
-gdb_test "info register st4" "st4 *1.44269.*\t.*" "verify st4 == 1.442695040*"
-gdb_test "info register st5" "st5 *3.32192.*\t.*" "verify st5 == 3.3219280948*"
-gdb_test "info register st6" "st6 *1\t.*"         "verify st6 == 1"
+gdb_test "info register st0" "st0 *0\[ \t\]+.*"         "verify st0 == 0"
+gdb_test "info register st1" "st1 *0.69314.*\[ \t\]+.*" "verify st1 == 0.69314*"
+gdb_test "info register st2" "st2 *0.30102.*\[ \t\]+.*" "verify st2 == 0.301029*"
+gdb_test "info register st3" "st3 *3.14159.*\[ \t\]+.*" "verify st3 == 3.14159265*"
+gdb_test "info register st4" "st4 *1.44269.*\[ \t\]+.*" "verify st4 == 1.442695040*"
+gdb_test "info register st5" "st5 *3.32192.*\[ \t\]+.*" "verify st5 == 3.3219280948*"
+gdb_test "info register st6" "st6 *1\[ \t\]+.*"         "verify st6 == 1"
 
 gdb_test "reverse-stepi" "asm.*fldz.*"            "push st0 == 0.69314*"
-gdb_test "info register st0" "st0 *0.69314.*\t.*" "verify st0 == 0.69314*"
-gdb_test "info register st1" "st1 *0.30102.*\t.*" "verify st1 == 0.301029*"
-gdb_test "info register st2" "st2 *3.14159.*\t.*" "verify st2 == 3.14159265*"
-gdb_test "info register st3" "st3 *1.44269.*\t.*" "verify st3 == 1.442695040*"
-gdb_test "info register st4" "st4 *3.32192.*\t.*" "verify st4 == 3.3219280948*"
-gdb_test "info register st5" "st5 *1\t.*"       "verify st5 == 1"
+gdb_test "info register st0" "st0 *0.69314.*\[ \t\]+.*" "verify st0 == 0.69314*"
+gdb_test "info register st1" "st1 *0.30102.*\[ \t\]+.*" "verify st1 == 0.301029*"
+gdb_test "info register st2" "st2 *3.14159.*\[ \t\]+.*" "verify st2 == 3.14159265*"
+gdb_test "info register st3" "st3 *1.44269.*\[ \t\]+.*" "verify st3 == 1.442695040*"
+gdb_test "info register st4" "st4 *3.32192.*\[ \t\]+.*" "verify st4 == 3.3219280948*"
+gdb_test "info register st5" "st5 *1\[ \t\]+.*"       "verify st5 == 1"
 
 gdb_test "reverse-stepi" "asm.*fldln2.*"          "push st0 == 0.301029*"
-gdb_test "info register st0" "st0 *0.30102.*\t.*" "verify st0 == 0.301029*"
-gdb_test "info register st1" "st1 *3.14159.*\t.*" "verify st1 == 3.14159265*"
-gdb_test "info register st2" "st2 *1.44269.*\t.*" "verify st2 == 1.442695040*"
-gdb_test "info register st3" "st3 *3.32192.*\t.*" "verify st3 == 3.3219280948*"
-gdb_test "info register st4" "st4 *1\t.*"         "verify st4 == 1"
+gdb_test "info register st0" "st0 *0.30102.*\[ \t\]+.*" "verify st0 == 0.301029*"
+gdb_test "info register st1" "st1 *3.14159.*\[ \t\]+.*" "verify st1 == 3.14159265*"
+gdb_test "info register st2" "st2 *1.44269.*\[ \t\]+.*" "verify st2 == 1.442695040*"
+gdb_test "info register st3" "st3 *3.32192.*\[ \t\]+.*" "verify st3 == 3.3219280948*"
+gdb_test "info register st4" "st4 *1\[ \t\]+.*"         "verify st4 == 1"
 
 gdb_test "reverse-stepi" "asm.*fldlg2.*"          "push st0 == 3.14159265*"
-gdb_test "info register st0" "st0 *3.14159.*\t.*" "verify st0 == 3.14159265*"
-gdb_test "info register st1" "st1 *1.44269.*\t.*" "verify st1 == 1.442695040*"
-gdb_test "info register st2" "st2 *3.32192.*\t.*" "verify st2 == 3.3219280948*"
-gdb_test "info register st3" "st3 *1\t.*"       "verify st3 == 1"
+gdb_test "info register st0" "st0 *3.14159.*\[ \t\]+.*" "verify st0 == 3.14159265*"
+gdb_test "info register st1" "st1 *1.44269.*\[ \t\]+.*" "verify st1 == 1.442695040*"
+gdb_test "info register st2" "st2 *3.32192.*\[ \t\]+.*" "verify st2 == 3.3219280948*"
+gdb_test "info register st3" "st3 *1\[ \t\]+.*"       "verify st3 == 1"
 
 gdb_test "reverse-stepi" "asm.*fldpi.*"           "push st0 == 1.44269504088*"
-gdb_test "info register st0" "st0 *1.44269.*\t.*" "verify st0 == 1.442695040*"
-gdb_test "info register st1" "st1 *3.32192.*\t.*" "verify st1 == 3.3219280948*"
-gdb_test "info register st2" "st2 *1\t.*"         "verify st2 == 1"
+gdb_test "info register st0" "st0 *1.44269.*\[ \t\]+.*" "verify st0 == 1.442695040*"
+gdb_test "info register st1" "st1 *3.32192.*\[ \t\]+.*" "verify st1 == 3.3219280948*"
+gdb_test "info register st2" "st2 *1\[ \t\]+.*"         "verify st2 == 1"
 
 
 gdb_test "reverse-stepi" "asm.*fldl2e.*"          "push st0 == 3.3219280948*"
-gdb_test "info register st0" "st0 *3.32192.*\t.*" "verify st0 == 3.3219280948*"
-gdb_test "info register st1" "st1 *1\t.*"         "verify st1 == 1"
+gdb_test "info register st0" "st0 *3.32192.*\[ \t\]+.*" "verify st0 == 3.3219280948*"
+gdb_test "info register st1" "st1 *1\[ \t\]+.*"         "verify st1 == 1"
 
 gdb_test "reverse-stepi" "asm.*fldl2t.*"      "push st0 == 1"
-gdb_test "info register st0" "st0 *1\t.*"     "verify st0 == 1"                                               
+gdb_test "info register st0" "st0 *1\[ \t\]+.*"     "verify st0 == 1"