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authorXinliang David Li <davidxl@google.com>2017-06-13 21:14:07 +0000
committerXinliang David Li <davidxl@google.com>2017-06-13 21:14:07 +0000
commit4ec360683539f0b9ca68d6b2e2935965a2b25665 (patch)
tree61ffad4ecdd0e0246b9578c29daae53c2cc99dab /clang
parent0096d78bf9781ec7e0232b49d6cf895e6cfd3a0e (diff)
downloadbcm5719-llvm-4ec360683539f0b9ca68d6b2e2935965a2b25665.tar.gz
bcm5719-llvm-4ec360683539f0b9ca68d6b2e2935965a2b25665.zip
Preserve cold attribute for function decls
Differential Revision: http://reviews.llvm.org/D34133 llvm-svn: 305325
Diffstat (limited to 'clang')
-rw-r--r--clang/lib/CodeGen/CGCall.cpp2
-rw-r--r--clang/test/CodeGen/attributes.c10
2 files changed, 12 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CGCall.cpp b/clang/lib/CodeGen/CGCall.cpp
index 07906473358..c65dc18be30 100644
--- a/clang/lib/CodeGen/CGCall.cpp
+++ b/clang/lib/CodeGen/CGCall.cpp
@@ -1795,6 +1795,8 @@ void CodeGenModule::ConstructAttributeList(
FuncAttrs.addAttribute(llvm::Attribute::NoUnwind);
if (TargetDecl->hasAttr<NoReturnAttr>())
FuncAttrs.addAttribute(llvm::Attribute::NoReturn);
+ if (TargetDecl->hasAttr<ColdAttr>())
+ FuncAttrs.addAttribute(llvm::Attribute::Cold);
if (TargetDecl->hasAttr<NoDuplicateAttr>())
FuncAttrs.addAttribute(llvm::Attribute::NoDuplicate);
if (TargetDecl->hasAttr<ConvergentAttr>())
diff --git a/clang/test/CodeGen/attributes.c b/clang/test/CodeGen/attributes.c
index 9e5fa9f9065..34833a24692 100644
--- a/clang/test/CodeGen/attributes.c
+++ b/clang/test/CodeGen/attributes.c
@@ -56,6 +56,13 @@ void t4() {}
void t7() __attribute__((noreturn, nothrow));
void t7() { while (1) {} }
+// CHECK: define void @t72() [[COLDDEF:#[0-9]+]] {
+void t71(void) __attribute__((cold));
+void t72() __attribute__((cold));
+void t72() { t71(); }
+// CHECK: call void @t71() [[COLDSITE:#[0-9]+]]
+// CHECK: declare void @t71() [[COLDDECL:#[0-9]+]]
+
// CHECK: define void @t10() [[NUW]] section "SECT" {
void t10(void) __attribute__((section("SECT")));
void t10(void) {}
@@ -92,3 +99,6 @@ void __attribute__((section(".bar"))) t22(void) {}
// CHECK: attributes [[NUW]] = { noinline nounwind{{.*}} }
// CHECK: attributes [[NR]] = { noinline noreturn nounwind{{.*}} }
+// CHECK: attributes [[COLDDEF]] = { cold {{.*}}}
+// CHECK: attributes [[COLDDECL]] = { cold {{.*}}}
+// CHECK: attributes [[COLDSITE]] = { cold {{.*}}}
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