Author: echristo
Date: Thu Jun 11 20:35:58 2015
New Revision: 239581
URL: http://llvm.org/viewvc/llvm-project?rev=239581&view=rev
Log:
Handle -mno-<feature> in target attribute strings by replacing the
-mno- with a -<feature> to match how we handle this in the rest
of the frontend.
Modified:
cfe/trunk/lib/CodeGen/CGCall.cpp
cfe/trunk/test/CodeGen/attr-target.c
Modified: cfe/trunk/lib/CodeGen/CGCall.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGCall.cpp?rev=239581&r1=239580&r2=239581&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGCall.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGCall.cpp Thu Jun 11 20:35:58 2015
@@ -1515,8 +1515,10 @@ void CodeGenModule::ConstructAttributeLi
else if (Feature.startswith("tune="))
// We don't support cpu tuning this way currently.
;
- else
- Features.push_back("+" + Feature.str());
+ else if (Feature.startswith("mno-"))
+ Features.push_back("-" + Feature.split("-").second.str());
+ else
+ Features.push_back("+" + Feature.str());
}
}
}
Modified: cfe/trunk/test/CodeGen/attr-target.c
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/attr-target.c?rev=239581&r1=239580&r2=239581&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/attr-target.c (original)
+++ cfe/trunk/test/CodeGen/attr-target.c Thu Jun 11 20:35:58 2015
@@ -6,6 +6,8 @@ int __attribute__((target("avx,sse4.2,ar
int __attribute__((target("tune=sandybridge"))) walrus(int a) { return 4; }
+int __attribute__((target("mno-sse2"))) echidna(int a) { return 4; }
+
int bar(int a) { return baz(a) + foo(a); }
// Check that we emit the additional subtarget and cpu features for foo and
not for baz or bar.
@@ -13,6 +15,8 @@ int bar(int a) { return baz(a) + foo(a);
// CHECK: foo{{.*}} #1
// We ignore the tune attribute so walrus should be identical to baz and bar.
// CHECK: walrus{{.*}} #0
+// CHECK: echidna{{.*}} #2
// CHECK: bar{{.*}} #0
// CHECK: #0 = {{.*}}"target-cpu"="x86-64" "target-features"="+sse,+sse2"
// CHECK: #1 = {{.*}}"target-cpu"="ivybridge"
"target-features"="+sse,+sse2,+avx,+sse4.2"
+// CHECK: #2 = {{.*}}"target-cpu"="x86-64" "target-features"="+sse,+sse2,-sse2"
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