llvm-project/clang/test/CodeGen/attr-coldhot.c
Diego Novillo 5f2b1ce21e [PATCH] Generate cold attribute for functions marked __atribute__((cold))
This removes a FIXME in CodeGenModule::SetLLVMFunctionAttributesForDefinition.
When a function is declared cold we can now generate the IR attribute in
addition to marking the function to be optimized for size.

I tried adding a separate CHECK in the existing test, but it was
failing.  I suppose CHECK matches one line exactly once?  This would be
a problem if the attributes are listed in a different order, though they
seem to be sorted.

llvm-svn: 182666
2013-05-24 20:18:15 +00:00

12 lines
290 B
C

// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
int test1() __attribute__((__cold__)) {
return 42;
// Check that we set the optsize attribute on the function.
// CHECK: @test1{{.*}}[[ATTR:#[0-9]+]]
// CHECK: ret
}
// CHECK: attributes [[ATTR]] = { {{.*}}cold{{.*}}optsize{{.*}} }