From 8dd938ed179267b2a3a5206c78e89530967f45a5 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Tue, 15 Jan 2013 01:22:53 +0000
Subject: [IR] Add verifier support for llvm.module.flags.

 - Also, update the LangRef documentation on module flags to match the
   implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172498 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Verifier/module-flags-1.ll | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 test/Verifier/module-flags-1.ll

(limited to 'test/Verifier')

diff --git a/test/Verifier/module-flags-1.ll b/test/Verifier/module-flags-1.ll
new file mode 100644
index 0000000000..eafb1139f2
--- /dev/null
+++ b/test/Verifier/module-flags-1.ll
@@ -0,0 +1,37 @@
+; RUN: not llvm-as < %s -o /dev/null 2>&1 | FileCheck %s
+
+; Check that module flags are structurally correct.
+;
+; CHECK: incorrect number of operands in module flag
+; CHECK: metadata !0
+!0 = metadata !{ i32 1 }
+; CHECK: invalid behavior operand in module flag (expected constant integer)
+; CHECK: metadata !"foo"
+!1 = metadata !{ metadata !"foo", metadata !"foo", i32 42 }
+; CHECK: invalid behavior operand in module flag (unexpected constant)
+; CHECK: i32 999
+!2 = metadata !{ i32 999, metadata !"foo", i32 43 }
+; CHECK: invalid ID operand in module flag (expected metadata string)
+; CHECK: i32 1
+!3 = metadata !{ i32 1, i32 1, i32 44 }
+; CHECK: invalid value for 'require' module flag (expected metadata pair)
+; CHECK: i32 45
+!4 = metadata !{ i32 3, metadata !"bla", i32 45 }
+; CHECK: invalid value for 'require' module flag (expected metadata pair)
+; CHECK: metadata !
+!5 = metadata !{ i32 3, metadata !"bla", metadata !{ i32 46 } }
+; CHECK: invalid value for 'require' module flag (first value operand should be a string)
+; CHECK: i32 47
+!6 = metadata !{ i32 3, metadata !"bla", metadata !{ i32 47, i32 48 } }
+
+; Check that module flags only have unique IDs.
+;
+; CHECK: module flag identifiers must be unique (or of 'require' type)
+!7 = metadata !{ i32 1, metadata !"foo", i32 49 }
+!8 = metadata !{ i32 2, metadata !"foo", i32 50 }
+; CHECK-NOT: module flag identifiers must be unique
+!9 = metadata !{ i32 2, metadata !"bar", i32 51 }
+!10 = metadata !{ i32 3, metadata !"bar", i32 51 }
+
+!llvm.module.flags = !{
+  !0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !10 }
-- 
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