PR testsuite/80759 Fix broken tests in ms-sysv.exp

2017-07-24  Daniel Santos  <daniel.santos@pobox.com>

	PR testsuite/80759
	* gcc.target/x86_64/abi/ms-sysv/do-test.S
	(ELFFN_BEGIN): Rename to FN_TYPE.
	(ELFFN_END): Rename to FN_SIZE.
	(ASMNAME): New macro.
	(FUNC): Rename to FUNC_BEGIN, use ASMNAME and use .globl instead of
	.global.
	(FUNC_END): Use ASMNAME.
	(test_data_save): Remove.
	(test_data_input): Likewise.
	(test_data_output: Likewise.
	(test_data_fn): Likewise.
	(test_data_retaddr): Likewise.
	(regs_to_mem): Make globals, use r10 instead of rax.
	(mem_to_regs): Likewise.
	(do_test_unaligned): Remove .cfi directives, remove pushf/popf, move
	body to ms-sysv.c.
	(do_test_aligned): Likewise.
	* gcc.target/x86_64/abi/ms-sysv/ms-sysv.c:
	Add dg-* directives.
	(PASTE_STR): New macro.
	(ASMNAME): Likewise.
	(LOAD_TEST_DATA_ADDR): Likewise.
	(TEST_DATA_OFFSET): Likewise.
	(do_test_body0): New C function.
	(do_test_body): New inline assembly routine.
	* gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
	(runtest_ms_sysv): Modify.

From-SVN: r250489

4 files changed, 241 insertions, 226 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 682c525..07d7897 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,34 @@
+2017-07-24  Daniel Santos  <daniel.santos@pobox.com>
+
+	PR testsuite/80759
+	* gcc.target/x86_64/abi/ms-sysv/do-test.S
+	(ELFFN_BEGIN): Rename to FN_TYPE.
+	(ELFFN_END): Rename to FN_SIZE.
+	(ASMNAME): New macro.
+	(FUNC): Rename to FUNC_BEGIN, use ASMNAME and use .globl instead of
+	.global.
+	(FUNC_END): Use ASMNAME.
+	(test_data_save): Remove.
+	(test_data_input): Likewise.
+	(test_data_output: Likewise.
+	(test_data_fn): Likewise.
+	(test_data_retaddr): Likewise.
+	(regs_to_mem): Make globals, use r10 instead of rax.
+	(mem_to_regs): Likewise.
+	(do_test_unaligned): Remove .cfi directives, remove pushf/popf, move
+	body to ms-sysv.c.
+	(do_test_aligned): Likewise.
+	* gcc.target/x86_64/abi/ms-sysv/ms-sysv.c:
+	Add dg-* directives.
+	(PASTE_STR): New macro.
+	(ASMNAME): Likewise.
+	(LOAD_TEST_DATA_ADDR): Likewise.
+	(TEST_DATA_OFFSET): Likewise.
+	(do_test_body0): New C function.
+	(do_test_body): New inline assembly routine.
+	* gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
+	(runtest_ms_sysv): Modify.
+
 2017-07-24  Michael Meissner  <meissner@linux.vnet.ibm.com>
 
 	* gcc.target/powerpc/pr65849-1.c: Delete, test no longer valid
diff --git a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/do-test.S b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/do-test.S
index 1395235..ffe011b 100644
--- a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/do-test.S
+++ b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/do-test.S
@@ -23,141 +23,101 @@ a copy of the GCC Runtime Library Exception along with this program;
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 
-#ifdef __x86_64__
-
-# ifdef __ELF__
-#  define ELFFN_BEGIN(fn)       .type fn,@function
-#  define ELFFN_END(fn)         .size fn,.-fn
-# else
-#  define ELFFN_BEGIN(fn)
-#  define ELFFN_END(fn)
-# endif
-
-# define FUNC(fn)		\
-	.global fn;		\
-	ELFFN_BEGIN(fn);	\
-fn:
-
-#define FUNC_END(fn) ELFFN_END(fn)
-
-# ifdef __AVX__
-#  define MOVAPS vmovaps
-# else
-#  define MOVAPS movaps
-# endif
-
-/* TODO: Is there a cleaner way to provide these offsets?  */
-	.struct 0
-test_data_save:
-
-	.struct test_data_save + 224
-test_data_input:
-
-	.struct test_data_save + 448
-test_data_output:
-
-	.struct test_data_save + 672
-test_data_fn:
-
-	.struct test_data_save + 680
-test_data_retaddr:
+#if defined(__x86_64__) && defined(__SSE2__)
+
+/* These macros currently support GNU/Linux, Solaris and Darwin.  */
+
+#ifdef __ELF__
+# define FN_TYPE(fn) .type fn,@function
+# define FN_SIZE(fn) .size fn,.-fn
+#else
+# define FN_TYPE(fn)
+# define FN_SIZE(fn)
+#endif
+
+#ifdef __USER_LABEL_PREFIX__
+# define ASMNAME2(prefix, name)	prefix ## name
+# define ASMNAME1(prefix, name)	ASMNAME2(prefix, name)
+# define ASMNAME(name)		ASMNAME1(__USER_LABEL_PREFIX__, name)
+#else
+# define ASMNAME(name)		name
+#endif
+
+#define FUNC_BEGIN(fn)		\
+	.globl ASMNAME(fn);	\
+	FN_TYPE (ASMNAME(fn));	\
+ASMNAME(fn):
+
+#define FUNC_END(fn) FN_SIZE(ASMNAME(fn))
+
+#ifdef __AVX__
+# define MOVAPS vmovaps
+#else
+# define MOVAPS movaps
+#endif
 
 	.text
 
-regs_to_mem:
-	MOVAPS	%xmm6, (%rax)
-	MOVAPS	%xmm7, 0x10(%rax)
-	MOVAPS	%xmm8, 0x20(%rax)
-	MOVAPS	%xmm9, 0x30(%rax)
-	MOVAPS	%xmm10, 0x40(%rax)
-	MOVAPS	%xmm11, 0x50(%rax)
-	MOVAPS	%xmm12, 0x60(%rax)
-	MOVAPS	%xmm13, 0x70(%rax)
-	MOVAPS	%xmm14, 0x80(%rax)
-	MOVAPS	%xmm15, 0x90(%rax)
-	mov	%rsi, 0xa0(%rax)
-	mov	%rdi, 0xa8(%rax)
-	mov	%rbx, 0xb0(%rax)
-	mov	%rbp, 0xb8(%rax)
-	mov	%r12, 0xc0(%rax)
-	mov	%r13, 0xc8(%rax)
-	mov	%r14, 0xd0(%rax)
-	mov	%r15, 0xd8(%rax)
+FUNC_BEGIN(regs_to_mem)
+	MOVAPS	%xmm6, (%r10)
+	MOVAPS	%xmm7, 0x10(%r10)
+	MOVAPS	%xmm8, 0x20(%r10)
+	MOVAPS	%xmm9, 0x30(%r10)
+	MOVAPS	%xmm10, 0x40(%r10)
+	MOVAPS	%xmm11, 0x50(%r10)
+	MOVAPS	%xmm12, 0x60(%r10)
+	MOVAPS	%xmm13, 0x70(%r10)
+	MOVAPS	%xmm14, 0x80(%r10)
+	MOVAPS	%xmm15, 0x90(%r10)
+	mov	%rsi, 0xa0(%r10)
+	mov	%rdi, 0xa8(%r10)
+	mov	%rbx, 0xb0(%r10)
+	mov	%rbp, 0xb8(%r10)
+	mov	%r12, 0xc0(%r10)
+	mov	%r13, 0xc8(%r10)
+	mov	%r14, 0xd0(%r10)
+	mov	%r15, 0xd8(%r10)
 	retq
-
-mem_to_regs:
-	MOVAPS	(%rax), %xmm6
-	MOVAPS	0x10(%rax),%xmm7
-	MOVAPS	0x20(%rax),%xmm8
-	MOVAPS	0x30(%rax),%xmm9
-	MOVAPS	0x40(%rax),%xmm10
-	MOVAPS	0x50(%rax),%xmm11
-	MOVAPS	0x60(%rax),%xmm12
-	MOVAPS	0x70(%rax),%xmm13
-	MOVAPS	0x80(%rax),%xmm14
-	MOVAPS	0x90(%rax),%xmm15
-	mov	0xa0(%rax),%rsi
-	mov	0xa8(%rax),%rdi
-	mov	0xb0(%rax),%rbx
-	mov	0xb8(%rax),%rbp
-	mov	0xc0(%rax),%r12
-	mov	0xc8(%rax),%r13
-	mov	0xd0(%rax),%r14
-	mov	0xd8(%rax),%r15
+FUNC_END(regs_to_mem)
+
+FUNC_BEGIN(mem_to_regs)
+	MOVAPS	(%r10), %xmm6
+	MOVAPS	0x10(%r10),%xmm7
+	MOVAPS	0x20(%r10),%xmm8
+	MOVAPS	0x30(%r10),%xmm9
+	MOVAPS	0x40(%r10),%xmm10
+	MOVAPS	0x50(%r10),%xmm11
+	MOVAPS	0x60(%r10),%xmm12
+	MOVAPS	0x70(%r10),%xmm13
+	MOVAPS	0x80(%r10),%xmm14
+	MOVAPS	0x90(%r10),%xmm15
+	mov	0xa0(%r10),%rsi
+	mov	0xa8(%r10),%rdi
+	mov	0xb0(%r10),%rbx
+	mov	0xb8(%r10),%rbp
+	mov	0xc0(%r10),%r12
+	mov	0xc8(%r10),%r13
+	mov	0xd0(%r10),%r14
+	mov	0xd8(%r10),%r15
 	retq
+FUNC_END(mem_to_regs)
 
 # NOTE: Not MT safe
-FUNC(do_test_unaligned)
-	.cfi_startproc
+FUNC_BEGIN(do_test_unaligned)
 	# The below alignment checks are to verify correctness of the test
 	# its self.
 
 	# Verify that incoming stack is aligned + 8
-	pushf
-	test	$0x8, %rsp
-	jne	L0
+	test	$0xf, %rsp
+	je	ASMNAME(do_test_body)
 	int	$3		# Stack not unaligned
+FUNC_END(do_test_unaligned)
 
-FUNC(do_test_aligned)
+FUNC_BEGIN(do_test_aligned)
 	# Verify that incoming stack is aligned
-	pushf
-	test	$0xf, %rsp
-	je	L0
+	test	$0x8, %rsp
+	jne	ASMNAME(do_test_body)
 	int	$3		# Stack not aligned
-L0:
-	popf
-
-	# Save registers
-	lea	test_data(%rip), %rax
-	call	regs_to_mem
-
-	# Load register with random data
-	lea	test_data + test_data_input(%rip), %rax
-	call	mem_to_regs
-
-	# Save original return address
-	pop	%rax
-	movq    %rax, test_data + test_data_retaddr(%rip)
-
-	# Call the test function
-	call	*test_data + test_data_fn(%rip)
-
-	# Restore the original return address
-	movq    test_data + test_data_retaddr(%rip), %rcx
-	push	%rcx
-
-	# Save test function return value and store resulting register values
-	push	%rax
-	lea	test_data + test_data_output(%rip), %rax
-	call	regs_to_mem
-
-	# Restore registers
-	lea	test_data(%rip), %rax
-	call	mem_to_regs
-	pop	%rax
-	retq
-        .cfi_endproc
 FUNC_END(do_test_aligned)
-FUNC_END(do_test_unaligned)
 
 #endif /* __x86_64__ */
diff --git a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c
index 2a011f5..caf9e6b 100644
--- a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c
+++ b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.c
@@ -46,6 +46,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
   is then called.  After the function returns, the value of all volatile
   registers is verified against the random data and then restored.  */
 
+/* { dg-do run } */
+/* { dg-additional-sources "do-test.S" } */
+/* { dg-additional-options "-Wall" } */
+
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
@@ -58,8 +62,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #include <errno.h>
 #include <ctype.h>
 
-#ifndef __x86_64__
-# error Test only valid on x86_64
+#if !defined(__x86_64__) || !defined(__SSE2__)
+# error Test only valid on x86_64 with -msse2
 #endif
 
 enum reg_data_sets
@@ -144,6 +148,81 @@ static __attribute__((ms_abi)) long
 static int arbitrarily_fail;
 static const char *argv0;
 
+
+#define PASTE_STR2(a)		#a
+#define PASTE_STR1(a, b)	PASTE_STR2(a ## b)
+#define PASTE_STR(a, b)		PASTE_STR1(a, b)
+
+#ifdef __USER_LABEL_PREFIX__
+# define ASMNAME(name)		PASTE_STR(__USER_LABEL_PREFIX__, name)
+#else
+# define ASMNAME(name)		#name
+#endif
+
+#ifdef __MACH__
+# define LOAD_TEST_DATA_ADDR(dest) \
+	"	mov	" ASMNAME(test_data) "@GOTPCREL(%%rip), " dest "\n"
+#else
+# define LOAD_TEST_DATA_ADDR(dest) \
+	"	lea	" ASMNAME(test_data) "(%%rip), " dest "\n"
+#endif
+
+#define TEST_DATA_OFFSET(f)	((int)__builtin_offsetof(struct test_data, f))
+
+void __attribute__((used))
+do_test_body0 (void)
+{
+  __asm__ ("\n"
+	"	.globl " ASMNAME(do_test_body) "\n"
+#ifdef __ELF__
+	"	.type " ASMNAME(do_test_body) ",@function\n"
+#endif
+	ASMNAME(do_test_body) ":\n"
+	"	# rax, r10 and r11 are usable here.\n"
+	"\n"
+	"	# Save registers.\n"
+		LOAD_TEST_DATA_ADDR("%%rax")
+	"	lea	%p0(%%rax), %%r10\n"
+	"	call	" ASMNAME(regs_to_mem) "\n"
+	"\n"
+	"	# Load registers with random data.\n"
+	"	lea	%p1(%%rax), %%r10\n"
+	"	call	" ASMNAME(mem_to_regs) "\n"
+	"\n"
+	"	# Pop and save original return address.\n"
+	"	pop	%%r10\n"
+	"	mov	%%r10, %p4(%%rax)\n"
+	"\n"
+	"	# Call the test function, after which rcx, rdx and r8-11\n"
+	"	# become usable.\n"
+	"	lea	%p3(%%rax), %%rax\n"
+	"	call	*(%%rax)\n"
+	"\n"
+	"	# Store resulting register values.\n"
+		LOAD_TEST_DATA_ADDR("%%rcx")
+	"	lea	%p2(%%rcx), %%r10\n"
+	"	call	" ASMNAME(regs_to_mem) "\n"
+	"\n"
+	"	# Push the original return address.\n"
+	"	lea	%p4(%%rcx), %%r10\n"
+	"	push	(%%r10)\n"
+	"\n"
+	"	# Restore registers.\n"
+	"	lea	%p0(%%rcx), %%r10\n"
+	"	call	" ASMNAME(mem_to_regs) "\n"
+	"\n"
+	"	retq\n"
+#ifdef __ELF__
+	"	.size " ASMNAME(do_test_body) ",.-" ASMNAME(do_test_body) "\n"
+#endif
+	::
+	"i"(TEST_DATA_OFFSET(regdata[REG_SET_SAVE])),
+	"i"(TEST_DATA_OFFSET(regdata[REG_SET_INPUT])),
+	"i"(TEST_DATA_OFFSET(regdata[REG_SET_OUTPUT])),
+	"i"(TEST_DATA_OFFSET(fn)),
+	"i"(TEST_DATA_OFFSET(retaddr)) : "memory");
+}
+
 static void __attribute__((noinline))
 init_test (void *fn, const char *name, enum alignment_option alignment,
 	   enum shrink_wrap_option shrink_wrap, long ret_expected)
diff --git a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
index 26777e0..87f8169 100644
--- a/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
+++ b/gcc/testsuite/gcc.target/x86_64/abi/ms-sysv/ms-sysv.exp
@@ -56,52 +56,48 @@ proc host_supports_c++11 {} {
 
 # Exit immediately if this isn't a native x86_64 target.
 if { (![istarget x86_64-*-*] && ![istarget i?86-*-*])
-     || ![is-effective-target lp64] || ![isnative]
-     || ![host_supports_c++11] } then {
-    unsupported "$subdir"
+      || ![is-effective-target lp64] || ![isnative]
+      || ![host_supports_c++11] } then {
+
+    # Gate "unsupported" message return value of first runtest_file_p call.
+    if [runtest_file_p $runtests "$srcdir/$subdir/ms-sysv.c"] {
+	unsupported "$subdir"
+    }
     return
 }
 
-global GCC_RUNTEST_PARALLELIZE_DIR
-
 proc runtest_ms_sysv { cflags generator_args } {
     global GCC_UNDER_TEST HOSTCXX HOSTCXXFLAGS tmpdir srcdir subdir \
-	   parallel_dir next_test
+	   TEST_ALWAYS_FLAGS runtests
 
     set objdir "$tmpdir/ms-sysv"
     set generator "$tmpdir/ms-sysv-generate.exe"
     set generated_header "$objdir/ms-sysv-generated.h"
-    set do_test_o "$objdir/do-test.o"
-    set ms_sysv_o "$objdir/ms-sysv.o"
-    set ms_sysv_exe "$objdir/ms-sysv.exe"
     set status 0
     set warn_flags "-Wall"
-    set this_test $next_test
-    incr next_test
-
-    # Do parallelization here
-    if [catch {set fd [open "$parallel_dir/$this_test" \
-			    [list RDWR CREAT EXCL]]} ] {
-	if { [lindex $::errorCode 1] eq "EEXIST" } then {
-	    # Another job is running this test
-	    return
-	} else {
-	    error "Failed to open $parallel_dir/$this_test: $::errorCode"
-	    set status 1
-	}
-    } else {
-      close $fd
-    }
 
     # Detect when hard frame pointers are enabled (or required) so we know not
     # to generate bp clobbers.
-    if [regexp "^(.+ +| *)-(O0|fno-omit-frame-pointer|p|pg)( +.*)?$" \
-	       $cflags match] then {
+    if { [regexp "(^| )-(O0|fno-omit-frame-pointer|p|pg)( |$)" \
+		 "$TEST_ALWAYS_FLAGS $cflags" match]
+	 || [istarget *-*-solaris*] } then {
 	set generator_args "$generator_args --omit-rbp-clobbers"
     }
 
-    set descr "$subdir CFLAGS=\"$cflags\" generator_args=\"$generator_args\""
-    verbose "$tmpdir: Running test $descr" 1
+    # Add all other flags
+    set escaped_generator_args [regsub -all " " $generator_args "\\ "]
+    set cflags "$cflags\"-DGEN_ARGS=$escaped_generator_args\""
+
+    gcc_parallel_test_enable 1
+    if ![runtest_file_p $runtests "$srcdir/$subdir/ms-sysv.c"] then {
+	return
+    }
+
+    #verbose "runtest_ms_sysv $cflags" 0
+
+    # Make sure there's no previous header file so that we can't accidentally
+    # pass if generation fails.
+    file delete -force $generated_header
 
     # Cleanup any previous test in objdir
     file delete -force $objdir
@@ -109,18 +105,16 @@ proc runtest_ms_sysv { cflags generator_args } {
 
     # Build the generator (only needs to be done once).
     set src "$srcdir/$subdir/gen.cc"
-    if { $status == 0 } then {
-	if { (![file exists "$generator"]) || ([file mtime "$generator"]
-					    < [file mtime "$src"]) } {
-	    # Temporarily switch to the environment for the host compiler.
-	    restore_ld_library_path_env_vars
-	    set cxx "$HOSTCXX $HOSTCXXFLAGS $warn_flags -std=c++11"
-	    set status [remote_exec host "$cxx -o $generator $src"]
-	    set status [lindex $status 0]
-	    set_ld_library_path_env_vars
-	    if { $status != 0 } then {
-		warning "Could not build $subdir generator"
-	    }
+    if { (![file exists "$generator"]) || ([file mtime "$generator"]
+					   < [file mtime "$src"]) } {
+	# Temporarily switch to the environment for the host compiler.
+	restore_ld_library_path_env_vars
+	set cxx "$HOSTCXX $HOSTCXXFLAGS $TEST_ALWAYS_FLAGS $warn_flags -std=c++11"
+	set status [remote_exec host "$cxx -o $generator $src"]
+	set status [lindex $status 0]
+	set_ld_library_path_env_vars
+	if { $status != 0 } then {
+	    warning "Could not build $subdir generator"
 	}
     }
 
@@ -133,75 +127,26 @@ proc runtest_ms_sysv { cflags generator_args } {
 	}
     }
 
-    set cc "$GCC_UNDER_TEST -I$objdir -I$srcdir/$subdir $cflags $warn_flags"
-
-    # Assemble do-test.S
-    set src "$srcdir/$subdir/do-test.S"
-    if { $status == 0 } then {
-	set status [remote_exec build "$cc -c -o $do_test_o $src"]
-	set status [lindex $status 0]
-	if { $status != 0 } then {
-	    warning "Could not assemble $src"
-	}
-    }
-
-    # Build ms-sysv.c
-    set src "$srcdir/$subdir/ms-sysv.c"
-    if { $status == 0 } then {
-	set status [remote_exec build "$cc -c -o $ms_sysv_o $src" "" "" "" 1200]
-	set status [lindex $status 0]
-	if { $status != 0 } then {
-	    warning "Could not build $src."
-	}
-    }
-
-    # Link
-    if { $status == 0 } then {
-	set status [remote_exec build "$cc -o $ms_sysv_exe $ms_sysv_o $do_test_o"]
-	set status [lindex $status 0]
-	if { $status != 0 } then {
-	    warning "Link failed."
-	}
-    }
-
-    # Execute
-    if { $status == 0 } then {
-	set status [remote_exec build "$ms_sysv_exe"]
-	set status [lindex $status 0]
-    }
-
-    if { $status != 0 } then {
-	fail $descr
-    } else {
-	pass $descr
-    }
+    gcc_parallel_test_enable 0
+    dg-runtest $srcdir/$subdir/ms-sysv.c "$cflags" "-I$objdir -I$srcdir/$subdir $warn_flags"
+    gcc_parallel_test_enable 1
 }
 
 dg-init
 
-# Setup parallelization
-set next_test 0
-set parallel_dir "$env(GCC_RUNTEST_PARALLELIZE_DIR)/abi-ms-sysv"
-file mkdir "$env(GCC_RUNTEST_PARALLELIZE_DIR)"
-file mkdir "$parallel_dir"
-
-if { ![file isdirectory "$parallel_dir"] } then {
-    error "Failed to create directory $parallel_dir: $::errorCode"
-    return
-}
+# Standard test parameters.
+set gen_pcount_opts [list "-p0" "-p1" "-p5"]
+set base_cflags_arr [list " -O2 " " -O0 -g3 "]
 
-set gen_opts "-p0-5"
-set all_options [list "-O2" "-O0 -g3"]
+foreach gen_opts $gen_pcount_opts {
+    foreach cflags $base_cflags_arr {
+	# Run without -mcall-ms2sysv-xlogues always
+	runtest_ms_sysv "$cflags" "$gen_opts"
 
-# Run without -mcall-ms2sysv-xlogues always
-foreach opt $all_options {
-    runtest_ms_sysv "$opt" "$gen_opts"
-}
-
-# Skip -mcall-ms2sysv-xlogues on Windows (not supported)
-if { ![istarget *-*-cygwin*] && ![istarget *-*-mingw*] } {
-    foreach opt $all_options {
-	runtest_ms_sysv "-mcall-ms2sysv-xlogues $opt" "$gen_opts"
+	# Skip unsupported -mcall-ms2sysv-xlogues on Windows
+	if { ![istarget *-*-cygwin*] && ![istarget *-*-mingw*] } {
+	    runtest_ms_sysv "-mcall-ms2sysv-xlogues$cflags" "$gen_opts"
+	}
     }
 }