Mark @llvm.trap cold
A call to @llvm.trap can be expected to be cold (i.e. unlikely to be
reached in a normal program execution).
Outlining paths which unconditionally trap is an important memory
saving. As the hot/cold splitting pass (imho) should not treat all
noreturn calls as cold, explicitly mark @llvm.trap cold so that it can
be outlined.
Split out of https://reviews.llvm.org/D54244.
Differential Revision: https://reviews.llvm.org/D54329
llvm-svn: 346885
diff --git a/llvm/test/Feature/intrinsics.ll b/llvm/test/Feature/intrinsics.ll
index bbf30d3..71bb73c 100644
--- a/llvm/test/Feature/intrinsics.ll
+++ b/llvm/test/Feature/intrinsics.ll
@@ -70,4 +70,4 @@
}
; CHECK: attributes #0 = { nounwind readnone speculatable }
-; CHECK: attributes #1 = { noreturn nounwind }
+; CHECK: attributes #1 = { cold noreturn nounwind }