svn commit: r232894 - head/contrib/llvm/tools/clang/lib/Basic
Dimitry Andric
dim at FreeBSD.org
Mon Mar 12 21:07:23 UTC 2012
Author: dim
Date: Mon Mar 12 21:07:22 2012
New Revision: 232894
URL: http://svn.freebsd.org/changeset/base/232894
Log:
Pull in r145194 from upstream clang trunk:
Make our handling of MMX x SSE closer to what gcc does:
* Enabling sse enables mmx.
* Disabling (-mno-mmx) mmx, doesn't disable sse (we got this right already).
* The order in not important. -msse -mno-mmx is the same as -mno-mmx -msse.
Some configure scripts depend on this.
PR: i386/165968
MFC after: 3 days
Modified:
head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp
Modified: head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp
==============================================================================
--- head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp Mon Mar 12 20:59:18 2012 (r232893)
+++ head/contrib/llvm/tools/clang/lib/Basic/Targets.cpp Mon Mar 12 21:07:22 2012 (r232894)
@@ -1583,23 +1583,26 @@ bool X86TargetInfo::setFeatureEnabled(ll
(Name != "sse4" && Name != "sse4.2" && Name != "sse4.1"))
return false;
+ // FIXME: this should probably use a switch with fall through.
+
if (Enabled) {
if (Name == "mmx")
Features["mmx"] = true;
else if (Name == "sse")
- Features["sse"] = true;
+ Features["mmx"] = Features["sse"] = true;
else if (Name == "sse2")
- Features["sse"] = Features["sse2"] = true;
+ Features["mmx"] = Features["sse"] = Features["sse2"] = true;
else if (Name == "sse3")
- Features["sse"] = Features["sse2"] = Features["sse3"] = true;
+ Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
+ true;
else if (Name == "ssse3")
- Features["sse"] = Features["sse2"] = Features["sse3"] =
+ Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
Features["ssse3"] = true;
else if (Name == "sse4" || Name == "sse4.2")
- Features["sse"] = Features["sse2"] = Features["sse3"] =
+ Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
Features["ssse3"] = Features["sse41"] = Features["sse42"] = true;
else if (Name == "sse4.1")
- Features["sse"] = Features["sse2"] = Features["sse3"] =
+ Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
Features["ssse3"] = Features["sse41"] = true;
else if (Name == "3dnow")
Features["mmx"] = Features["3dnow"] = true;
@@ -1608,10 +1611,11 @@ bool X86TargetInfo::setFeatureEnabled(ll
else if (Name == "aes")
Features["aes"] = true;
else if (Name == "avx")
- Features["avx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
- Features["ssse3"] = Features["sse41"] = Features["sse42"] = true;
+ Features["mmx"] = Features["sse"] = Features["sse2"] = Features["sse3"] =
+ Features["ssse3"] = Features["sse41"] = Features["sse42"] =
+ Features["avx"] = true;
else if (Name == "sse4a")
- Features["sse4a"] = true;
+ Features["mmx"] = Features["sse4a"] = true;
} else {
if (Name == "mmx")
Features["mmx"] = Features["3dnow"] = Features["3dnowa"] = false;
@@ -3779,13 +3783,32 @@ TargetInfo *TargetInfo::CreateTargetInfo
Target->getDefaultFeatures(Features);
// Apply the user specified deltas.
+ // First the enables.
for (std::vector<std::string>::const_iterator it = Opts.Features.begin(),
ie = Opts.Features.end(); it != ie; ++it) {
const char *Name = it->c_str();
+ if (Name[0] != '+')
+ continue;
+
+ // Apply the feature via the target.
+ if (!Target->setFeatureEnabled(Features, Name + 1, true)) {
+ Diags.Report(diag::err_target_invalid_feature) << Name;
+ return 0;
+ }
+ }
+
+ // Then the disables.
+ for (std::vector<std::string>::const_iterator it = Opts.Features.begin(),
+ ie = Opts.Features.end(); it != ie; ++it) {
+ const char *Name = it->c_str();
+
+ if (Name[0] == '+')
+ continue;
+
// Apply the feature via the target.
- if ((Name[0] != '-' && Name[0] != '+') ||
- !Target->setFeatureEnabled(Features, Name + 1, (Name[0] == '+'))) {
+ if (Name[0] != '-' ||
+ !Target->setFeatureEnabled(Features, Name + 1, false)) {
Diags.Report(diag::err_target_invalid_feature) << Name;
return 0;
}
More information about the svn-src-all
mailing list