1# Copyright (C) 2003-2019 Free Software Foundation, Inc.
2
3# This program is free software; you can redistribute it and/or modify
4# it under the terms of the GNU General Public License as published by
5# the Free Software Foundation; either version 3 of the License, or
6# (at your option) any later version.
7#
8# This program is distributed in the hope that it will be useful,
9# but WITHOUT ANY WARRANTY; without even the implied warranty of
10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11# GNU General Public License for more details.
12#
13# You should have received a copy of the GNU General Public License
14# along with GCC; see the file COPYING3.  If not see
15# <http://www.gnu.org/licenses/>.
16
17load_lib copy-file.exp
18
19proc pch-init { args } {
20    global pch_unsupported_debug pch_unsupported
21
22    if [info exists pch_unsupported_debug] {
23	error "pch-init: pch_unsupported_debug is not empty as expected"
24    }
25    if [info exists pch_unsupported] {
26	error "pch-init: pch_unsupported is not empty as expected"
27    }
28
29    set result [check_compile pchtest object "int i;" "-g -x c-header"]
30    set pch_unsupported_debug \
31	[regexp "debug format cannot be used with pre-compiled headers" \
32		[lindex $result 0]]
33    remote_file build delete [lindex $result 1]
34
35    set pch_unsupported 0
36    if { $pch_unsupported_debug } {
37	verbose -log "pch is unsupported with the debug info format"
38
39	set result [check_compile pchtest object "int i;" "-x c-header"]
40	set pch_unsupported \
41	    [regexp "debug format cannot be used with pre-compiled headers" \
42		 [lindex $result 0]]
43	remote_file build delete [lindex $result 1]
44    }
45}
46
47proc pch-finish { args } {
48    global pch_unsupported_debug pch_unsupported
49    unset pch_unsupported_debug
50    unset pch_unsupported
51}
52
53proc check_effective_target_pch_supported_debug { } {
54    global pch_unsupported_debug
55    if { $pch_unsupported_debug } {
56	return 0
57    }
58    return 1
59}
60
61proc dg-flags-pch { subdir test otherflags options suffix } {
62    global runtests dg-do-what-default
63    global pch_unsupported_debug pch_unsupported
64
65    # If we're only testing specific files and this isn't one of them, skip it.
66    if ![runtest_file_p $runtests $test] {
67	return
68    }
69
70    if { [istarget "powerpc-ibm-aix*"] } {
71	set torture_execute_xfail "powerpc-ibm-aix*"
72	return
73    }
74
75    set nshort "$subdir/[file tail $test]"
76    set bname "[file rootname [file tail $nshort]]"
77
78    catch { file_on_host delete "$bname$suffix.gch" }
79    catch { file_on_host delete "$bname.s" }
80    catch { file_on_host delete "$bname.s-gch" }
81
82    # We don't try to use the loop-optimizing options, since they are highly
83    # unlikely to make any difference to PCH.
84    foreach flags $options {
85	verbose "Testing $nshort, $otherflags $flags" 1
86
87	if { $pch_unsupported != 0 \
88	     || ( $pch_unsupported_debug != 0 && [regexp " -g" " $flags"] ) } {
89	    verbose -log "$nshort unsupported because debug format conflicts with PCH"
90	    unsupported "$nshort $flags"
91	    continue
92	}
93
94	# For the header files, the default is to precompile.
95	set dg-do-what-default precompile
96	catch { file_on_host delete "$bname$suffix" }
97	gcc_copy_files "[file rootname $test]${suffix}s" "$bname$suffix"
98	dg-test -keep-output "./$bname$suffix" "$otherflags $flags" ""
99
100	# For the rest, the default is to compile to .s.
101	set dg-do-what-default compile
102
103	set have_errs [llength [grep $test "{\[ \t\]\+dg-error\[ \t\]\+.*\[ \t\]\+}"]]
104
105	if { [ file_on_host exists "$bname$suffix.gch" ] } {
106	    # Ensure that the PCH file is used, not the original header.
107	    file_on_host delete "$bname$suffix"
108
109	    # The flags "-Dwith_PCH" and "-Dwithout_PCH" are to distinguish the
110	    # two compiles in test summary lines.
111	    dg-test -keep-output $test "$otherflags $flags -I. -Dwith_PCH" ""
112	    file_on_host delete "$bname$suffix.gch"
113	    if { !$have_errs } {
114		if { [ file_on_host exists "$bname.s" ] } {
115		    remote_upload host "$bname.s" "$bname.s-gch"
116		    remote_download host "$bname.s-gch"
117		    gcc_copy_files "[file rootname $test]${suffix}s" "$bname$suffix"
118		    dg-test -keep-output $test "$otherflags $flags -I. -Dwithout_PCH" ""
119		    remote_upload host "$bname.s"
120		    set tmp [ diff "$bname.s" "$bname.s-gch" ]
121		    if { $tmp == 0 } {
122			verbose -log "assembly file '$bname.s', '$bname.s-gch' comparison error"
123			fail "$nshort $otherflags $flags assembly comparison"
124		    } elseif { $tmp == 1 } {
125			pass "$nshort $otherflags $flags assembly comparison"
126		    } else {
127			fail "$nshort $otherflags $flags assembly comparison"
128		    }
129		    file_on_host delete "$bname$suffix"
130		    file_on_host delete "$bname.s"
131		    file_on_host delete "$bname.s-gch"
132		} else {
133		    verbose -log "assembly file '$bname.s' missing"
134 		    fail "$nshort $flags assembly comparison"
135		}
136	    }
137	} elseif { $pch_unsupported_debug == 0 \
138		   || [llength [grep $test "{\[ \t\]\+dg-require-effective-target\[ \t\]\+pch_supported_debug\[ \t\]\+.*\[ \t\]\+}"]] > 0 } {
139	    verbose -log "pch file '$bname$suffix.gch' missing"
140	    fail "$nshort $flags"
141	    if { !$have_errs } {
142		verbose -log "assembly file '$bname.s' missing" 1
143		fail "$nshort $flags assembly comparison"
144	    }
145	}
146    }
147}
148
149proc dg-pch { subdir test options suffix } {
150  return [dg-flags-pch $subdir $test "" $options $suffix]
151}
152