Add -O0 support for @llvm.invariant.group.barrier by discarding it if it gets to ISel.
Differential Revision: https://reviews.llvm.org/D26292
llvm-svn: 286119
diff --git a/llvm/test/CodeGen/Generic/intrinsics.ll b/llvm/test/CodeGen/Generic/intrinsics.ll
index 29bc499..4d04786 100644
--- a/llvm/test/CodeGen/Generic/intrinsics.ll
+++ b/llvm/test/CodeGen/Generic/intrinsics.ll
@@ -1,4 +1,5 @@
; RUN: llc < %s
+; RUN: llc -O0 < %s
;; SQRT
declare float @llvm.sqrt.f32(float)
@@ -38,3 +39,9 @@
ret double %I
}
+declare i8* @llvm.invariant.group.barrier(i8*)
+
+define i8* @barrier(i8* %p) {
+ %q = call i8* @llvm.invariant.group.barrier(i8* %p)
+ ret i8* %q
+}