[Inliner] Add test for merging of min-legal-vector-width function attribute.

This should have been added in r337844, but apparently was I failed to 'git add' the file.

llvm-svn: 347840

1 files changed, 29 insertions, 0 deletions

diff --git a/llvm/test/Transforms/Inline/inline-min-legal-vector-width.ll b/llvm/test/Transforms/Inline/inline-min-legal-vector-width.ll
new file mode 100644
index 00000000000..cc00b5e00a7
--- /dev/null
+++ b/llvm/test/Transforms/Inline/inline-min-legal-vector-width.ll
@@ -0,0 +1,29 @@
+; RUN: opt %s -inline -S | FileCheck %s
+
+define internal void @innerSmall() "min-legal-vector-width"="128" {
+  ret void
+}
+
+define internal void @innerLarge() "min-legal-vector-width"="512" {
+  ret void
+}
+
+define void @outerNoAttribute() {
+  call void @innerLarge()
+  ret void
+}
+
+define void @outerConflictingAttributeSmall() "min-legal-vector-width"="128" {
+  call void @innerLarge()
+  ret void
+}
+
+define void @outerConflictingAttributeLarge() "min-legal-vector-width"="512" {
+  call void @innerSmall()
+  ret void
+}
+
+; CHECK: define void @outerNoAttribute() #0
+; CHECK: define void @outerConflictingAttributeSmall() #0
+; CHECK: define void @outerConflictingAttributeLarge() #0
+; CHECK: attributes #0 = { "min-legal-vector-width"="512" }