From f84adcc43f07cf61be79d9c56dfbf2dad15c2810 Mon Sep 17 00:00:00 2001
From: Julian Seward <jseward@acm.org>
Date: Sat, 9 Feb 2008 12:07:40 +0000
Subject: [PATCH] Only build the SSSE3 tests on machines whose assemblers know
 about these instructions.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7387
---
 configure.in                 | 22 ++++++++++++++++++++++
 none/tests/amd64/Makefile.am |  5 ++++-
 none/tests/x86/Makefile.am   |  7 +++++--
 3 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/configure.in b/configure.in
index ba3944b576..dff6a7b2e6 100644
--- a/configure.in
+++ b/configure.in
@@ -832,6 +832,28 @@ AC_MSG_RESULT([no])
 AM_CONDITIONAL(BUILD_SSE3_TESTS, test x$ac_have_as_sse3 = xyes)
 
 
+# Ditto for SSSE3 instructions (note extra S)
+# Note, this doesn't generate a C-level symbol.  It generates a
+# automake-level symbol (BUILD_SSSE3_TESTS), used in test Makefile.am's
+AC_MSG_CHECKING([if x86/amd64 assembler speaks SSSE3])
+
+AC_TRY_COMPILE(, [
+  do { long long int x; 
+   __asm__ __volatile__(
+      "pabsb (%0),%%xmm7" : : "r"(&x) : "xmm7" ); }
+  while (0)
+],
+[
+ac_have_as_ssse3=yes
+AC_MSG_RESULT([yes])
+], [
+ac_have_as_ssse3=no
+AC_MSG_RESULT([no])
+])
+
+AM_CONDITIONAL(BUILD_SSSE3_TESTS, test x$ac_have_as_ssse3 = xyes)
+
+
 # Check for TLS support in the compiler and linker
 AC_CACHE_CHECK([for TLS support], vg_cv_tls,
 	       [AC_ARG_ENABLE(tls, [  --enable-tls            platform supports TLS],
diff --git a/none/tests/amd64/Makefile.am b/none/tests/amd64/Makefile.am
index ca92455f45..9ca0b442a7 100644
--- a/none/tests/amd64/Makefile.am
+++ b/none/tests/amd64/Makefile.am
@@ -7,6 +7,9 @@ INSN_TESTS = insn_basic insn_mmx insn_sse insn_sse2 insn_fpu
 if BUILD_SSE3_TESTS
  INSN_TESTS += insn_sse3 insn_ssse3
 endif
+if BUILD_SSSE3_TESTS
+ INSN_TESTS += insn_ssse3 ssse3_misaligned
+endif
 
 # Explicitly include insn_sse3 even if ! BUILD_SSE3_TESTS, 
 # to avoid packaging screwups if 'make dist' is run on a machine
@@ -48,7 +51,7 @@ check_PROGRAMS = \
 	faultstatus fcmovnu fxtract $(INSN_TESTS) looper jrcxz \
 	rcl-amd64 \
 	redundantRexW \
-	smc1 shrld ssse3_misaligned \
+	smc1 shrld \
 	nibz_bennee_mmap \
 	slahf-amd64
 
diff --git a/none/tests/x86/Makefile.am b/none/tests/x86/Makefile.am
index 6c08f9f621..4767b70802 100644
--- a/none/tests/x86/Makefile.am
+++ b/none/tests/x86/Makefile.am
@@ -5,7 +5,10 @@ CLEANFILES = $(addsuffix .c,$(INSN_TESTS))
 INSN_TESTS = insn_basic insn_fpu insn_cmov insn_mmx insn_mmxext \
 		insn_sse insn_sse2
 if BUILD_SSE3_TESTS
- INSN_TESTS += insn_sse3 insn_ssse3
+ INSN_TESTS += insn_sse3
+endif
+if BUILD_SSSE3_TESTS
+ INSN_TESTS += insn_ssse3 ssse3_misaligned
 endif
 
 # Explicitly include insn_sse3 even if ! BUILD_SSE3_TESTS, 
@@ -61,7 +64,7 @@ check_PROGRAMS = \
 	getseg incdec_alt $(INSN_TESTS) \
 	jcxz \
 	lahf looper movx int pushpopseg sbbmisc \
-	seg_override sigcontext smc1 ssse3_misaligned yield
+	seg_override sigcontext smc1 yield
 
 AM_CFLAGS    = $(WERROR) -Winline -Wall -Wshadow \
 		@FLAG_M32@ -g -I$(top_srcdir)/include \
-- 
2.47.3