From: Carl Love Date: Fri, 9 Aug 2013 21:55:45 +0000 (+0000) Subject: The following instructions were introduced in the Power ISA 2.05 X-Git-Tag: svn/VALGRIND_3_9_0~201 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2313dbf69e7de8a1c0a6d86b9a5dc25863c0a57e;p=thirdparty%2Fvalgrind.git The following instructions were introduced in the Power ISA 2.05 (i.e., POWER6) - lfdp - stfdp - lfdpx - stfdpx These instructions were promptly deprecated (phased out) in ISA 2.06 (i.e., POWER7). Recent updates in binutils no longer supports these instructions unless the assembler is invoked with '-mpower6'. When 'make check' is run on valgrind when using such a newer binutils and running on a ppc64 system newer than POWER6, you get the following build error: y pc64_linux=1 -DVGPV_ppc64_linux_vanilla=1 -DVGA_SEC_ppc32=1 -DVGP_SEC_ppc64_linux=1 -Winline -Wall -Wshadow -g -Winline -Wall -Wshadow -g -I../../../include -m64 -Wno-long-long -Wwrite-strings -fno-stack-protector -Wno-write-strings -MT power_ISA2_05-power_ISA2_05.o -MD -MP -MF .deps/power_ISA2_05-power_ISA2_05.Tpo -c -o power_ISA2_05-power_ISA2_05.o `test -f 'power_ISA2_05.c' || echo './'`power_ISA2_05.c /tmp/cciGIkGG.s:Assembler messages: /tmp/cciGIkGG.s:387: Error: operand out of domain (31 is not a multiple of 4) /tmp/cciGIkGG.s:387: Error: syntax error; found `,', expected `(' /tmp/cciGIkGG.s:387: Error: junk at end of line: `,9' /tmp/cciGIkGG.s:478: Error: operand out of domain (31 is not a multiple of 4) /tmp/cciGIkGG.s:478: Error: syntax error; found `,', expected `(' /tmp/cciGIkGG.s:478: Error: junk at end of line: `,9' make[2]: *** [power_ISA2_05-power_ISA2_05.o] Error 1 make[2]: Leaving directory `/tmp/Valgrind_review/valgrind_ISA2_05/memcheck/tests/ppc64' make[1]: *** [check-am] Error 2 make[1]: Leaving directory `/tmp/Valgrind_review/valgrind_ISA2_05/memcheck/tests/ppc64' make: *** [check-recursive] Error 1 This patch fixes the problem by adding a configure check to determine if these phased out instructions are supported by the binutils, and the result of that configure check is used to decide whether or not to compile in the source for testing these instructions. Bugzilla 323116 committed by Carl Love, carll@us.ibm.com git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13490 --- diff --git a/configure.in b/configure.in index 6ac32b0410..5cf28a1753 100644 --- a/configure.in +++ b/configure.in @@ -1771,6 +1771,28 @@ if test x$ac_have_as_ppc_mftocrf = xyes ; then fi +# does the ppc assembler support "lfdp" and other phased out floating point insns? +AC_MSG_CHECKING([if ppc32/64 asm supports phased out floating point instructions]) + +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ + do { typedef struct { + double hi; + double lo; + } dbl_pair_t; + dbl_pair_t dbl_pair[3]; + __asm__ volatile ("lfdp 10, %0"::"m" (dbl_pair[0])); + } while (0) +]])], [ +ac_have_as_ppc_fpPO=yes +AC_MSG_RESULT([yes]) +], [ +ac_have_as_ppc_fpPO=no +AC_MSG_RESULT([no]) +]) +if test x$ac_have_as_ppc_fpPO = xyes ; then + AC_DEFINE(HAVE_AS_PPC_FPPO, 1, [Define to 1 if as supports floating point phased out category.]) +fi + CFLAGS=$safe_CFLAGS # does the x86/amd64 assembler understand SSE3 instructions? diff --git a/memcheck/tests/ppc32/Makefile.am b/memcheck/tests/ppc32/Makefile.am index 40033fc315..bd70eea671 100644 --- a/memcheck/tests/ppc32/Makefile.am +++ b/memcheck/tests/ppc32/Makefile.am @@ -4,7 +4,8 @@ include $(top_srcdir)/Makefile.tool-tests.am dist_noinst_SCRIPTS = filter_stderr EXTRA_DIST = $(noinst_SCRIPTS) \ - power_ISA2_05.stderr.exp power_ISA2_05.stdout.exp power_ISA2_05.vgtest + power_ISA2_05.stderr.exp power_ISA2_05.stdout.exp power_ISA2_05.vgtest \ + power_ISA2_05.stdout.exp_Without_FPPO check_PROGRAMS = \ power_ISA2_05 diff --git a/memcheck/tests/ppc32/power_ISA2_05.c b/memcheck/tests/ppc32/power_ISA2_05.c index 017845261e..3736c274ad 100644 --- a/memcheck/tests/ppc32/power_ISA2_05.c +++ b/memcheck/tests/ppc32/power_ISA2_05.c @@ -1,4 +1,5 @@ #include +#include double foo = -1.0; double FRT1; @@ -65,9 +66,15 @@ void test_lfiwax() ** FPp = leftmost 64 bits stored at DS(RA) ** FPp+1= rightmost 64 bits stored at DS(RA) ** FPp must be an even float register +** +** The [st|l]fdp[x] instructions were put into the "Floating-Point.Phased-Out" +** category in ISA 2.06 (i.e., POWER7 timeframe). If valgrind and its +** testsuite are built with -mcpu=power7 (or later), then the assembler will +** not recognize those phased out instructions. */ void test_double_pair_instrs() { +#ifdef HAVE_AS_PPC_FPPO typedef struct { double hi; double lo; @@ -122,6 +129,7 @@ void test_double_pair_instrs() __asm__ volatile ("stfdpx 10, 20, 21"); printf("stfdpx (%f, %f) => F_hi=%f, F_lo=%f\n", FRT1, FRT2, dbl_pair[2].hi, dbl_pair[2].lo); +#endif } diff --git a/memcheck/tests/ppc32/power_ISA2_05.stdout.exp_Without_FPPO b/memcheck/tests/ppc32/power_ISA2_05.stdout.exp_Without_FPPO new file mode 120000 index 0000000000..da5c109258 --- /dev/null +++ b/memcheck/tests/ppc32/power_ISA2_05.stdout.exp_Without_FPPO @@ -0,0 +1 @@ +../ppc64/power_ISA2_05.stdout.exp_Without_FPPO \ No newline at end of file diff --git a/memcheck/tests/ppc64/Makefile.am b/memcheck/tests/ppc64/Makefile.am index a18afd76fc..96eb5760fb 100644 --- a/memcheck/tests/ppc64/Makefile.am +++ b/memcheck/tests/ppc64/Makefile.am @@ -4,7 +4,8 @@ include $(top_srcdir)/Makefile.tool-tests.am dist_noinst_SCRIPTS = filter_stderr EXTRA_DIST = $(noinst_SCRIPTS) \ - power_ISA2_05.stderr.exp power_ISA2_05.stdout.exp power_ISA2_05.vgtest + power_ISA2_05.stderr.exp power_ISA2_05.stdout.exp power_ISA2_05.vgtest \ + power_ISA2_05.stdout.exp_Without_FPPO check_PROGRAMS = \ power_ISA2_05 diff --git a/memcheck/tests/ppc64/power_ISA2_05.c b/memcheck/tests/ppc64/power_ISA2_05.c index 8c0eab99a6..f552dc4212 100644 --- a/memcheck/tests/ppc64/power_ISA2_05.c +++ b/memcheck/tests/ppc64/power_ISA2_05.c @@ -1,4 +1,5 @@ #include +#include double foo = -1.0; double FRT1; @@ -63,9 +64,16 @@ void test_lfiwax() ** FPp = leftmost 64 bits stored at DS(RA) ** FPp+1= rightmost 64 bits stored at DS(RA) ** FPp must be an even float register +** +** The [st|l]fdp[x] instructions were put into the "Floating-Point.Phased-Out" +** category in ISA 2.06 (i.e., POWER7 timeframe). If valgrind and its +** testsuite are built with -mcpu=power7 (or later), then the assembler will +** not recognize those phased out instructions. +** */ void test_double_pair_instrs() { +#ifdef HAVE_AS_PPC_FPPO typedef struct { double hi; double lo; @@ -120,6 +128,7 @@ void test_double_pair_instrs() __asm__ volatile ("stfdpx 10, 20, 21"); printf("stfdpx (%f, %f) => F_hi=%f, F_lo=%f\n", FRT1, FRT2, dbl_pair[2].hi, dbl_pair[2].lo); +#endif } diff --git a/memcheck/tests/ppc64/power_ISA2_05.stdout.exp_Without_FPPO b/memcheck/tests/ppc64/power_ISA2_05.stdout.exp_Without_FPPO new file mode 100644 index 0000000000..19455263ae --- /dev/null +++ b/memcheck/tests/ppc64/power_ISA2_05.stdout.exp_Without_FPPO @@ -0,0 +1,119 @@ +lwarx => 0 +ldarx => bad0beef +fcpsgn sign=10.101010, base=11.111111 => 11.111111 +fcpsgn sign=10.101010, base=-0.000000 => 0.000000 +fcpsgn sign=10.101010, base=0.000000 => 0.000000 +fcpsgn sign=10.101010, base=-11.111111 => 11.111111 +fcpsgn sign=-0.000000, base=11.111111 => -11.111111 +fcpsgn sign=-0.000000, base=-0.000000 => -0.000000 +fcpsgn sign=-0.000000, base=0.000000 => -0.000000 +fcpsgn sign=-0.000000, base=-11.111111 => -11.111111 +fcpsgn sign=0.000000, base=11.111111 => 11.111111 +fcpsgn sign=0.000000, base=-0.000000 => 0.000000 +fcpsgn sign=0.000000, base=0.000000 => 0.000000 +fcpsgn sign=0.000000, base=-11.111111 => 11.111111 +fcpsgn sign=-10.101010, base=11.111111 => -11.111111 +fcpsgn sign=-10.101010, base=-0.000000 => -0.000000 +fcpsgn sign=-10.101010, base=0.000000 => -0.000000 +fcpsgn sign=-10.101010, base=-11.111111 => -11.111111 +lfiwax (-1024.000000) => FRT=(ffffffff, c0900000) +prtyd (0) => parity=0 +prtyw (0) => parity=0 +prtyd (1) => parity=1 +prtyw (1) => parity=1 +prtyd (2) => parity=0 +prtyw (2) => parity=0 +prtyd (3) => parity=1 +prtyw (3) => parity=1 +prtyd (4) => parity=0 +prtyw (4) => parity=0 +prtyd (5) => parity=1 +prtyw (5) => parity=1 +prtyd (6) => parity=0 +prtyw (6) => parity=0 +prtyd (7) => parity=1 +prtyw (7) => parity=1 +prtyd (8) => parity=0 +prtyw (8) => parity=0 +prtyd (9) => parity=1 +prtyw (9) => parity=1 +prtyd (a) => parity=0 +prtyw (a) => parity=0 +prtyd (b) => parity=1 +prtyw (b) => parity=1 +prtyd (c) => parity=0 +prtyw (c) => parity=0 +prtyd (d) => parity=1 +prtyw (d) => parity=1 +prtyd (e) => parity=0 +prtyw (e) => parity=0 +prtyd (f) => parity=1 +prtyw (f) => parity=1 +prtyd (10) => parity=0 +prtyw (10) => parity=0 +prtyd (11) => parity=1 +prtyw (11) => parity=1 +prtyd (12) => parity=0 +prtyw (12) => parity=0 +prtyd (13) => parity=1 +prtyw (13) => parity=1 +prtyd (14) => parity=0 +prtyw (14) => parity=0 +prtyd (15) => parity=1 +prtyw (15) => parity=1 +prtyd (16) => parity=0 +prtyw (16) => parity=0 +prtyd (17) => parity=1 +prtyw (17) => parity=1 +prtyd (18) => parity=0 +prtyw (18) => parity=0 +prtyd (19) => parity=1 +prtyw (19) => parity=1 +prtyd (1a) => parity=0 +prtyw (1a) => parity=0 +prtyd (1b) => parity=1 +prtyw (1b) => parity=1 +prtyd (1c) => parity=0 +prtyw (1c) => parity=0 +prtyd (1d) => parity=1 +prtyw (1d) => parity=1 +prtyd (1e) => parity=0 +prtyw (1e) => parity=0 +prtyd (1f) => parity=1 +prtyw (1f) => parity=1 +prtyd (20) => parity=0 +prtyw (20) => parity=0 +prtyd (21) => parity=1 +prtyw (21) => parity=1 +prtyd (22) => parity=0 +prtyw (22) => parity=0 +prtyd (23) => parity=1 +prtyw (23) => parity=1 +prtyd (24) => parity=0 +prtyw (24) => parity=0 +prtyd (25) => parity=1 +prtyw (25) => parity=1 +prtyd (26) => parity=0 +prtyw (26) => parity=0 +prtyd (27) => parity=1 +prtyw (27) => parity=1 +prtyd (28) => parity=0 +prtyw (28) => parity=0 +prtyd (29) => parity=1 +prtyw (29) => parity=1 +prtyd (2a) => parity=0 +prtyw (2a) => parity=0 +prtyd (2b) => parity=1 +prtyw (2b) => parity=1 +prtyd (2c) => parity=0 +prtyw (2c) => parity=0 +prtyd (2d) => parity=1 +prtyw (2d) => parity=1 +prtyd (2e) => parity=0 +prtyw (2e) => parity=0 +prtyd (2f) => parity=1 +prtyw (2f) => parity=1 +prtyd (30) => parity=0 +prtyw (30) => parity=0 +prtyd (31) => parity=1 +prtyw (31) => parity=1