From c1a91dd97b000128189421eda6c5bb7905b1f467 Mon Sep 17 00:00:00 2001
From: Tim Northover <tnorthover@apple.com>
Date: Wed, 26 Jun 2013 16:52:32 +0000
Subject: ARM: allow predicated barriers in Thumb mode

The barrier instructions are only "always-execute" in ARM mode, they can quite
happily sit inside an IT block in Thumb.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184964 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/MC/ARM/diagnostics.s             | 14 ++++++++++++++
 test/MC/ARM/thumb-only-conditionals.s | 19 +++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 test/MC/ARM/thumb-only-conditionals.s

(limited to 'test/MC/ARM')

diff --git a/test/MC/ARM/diagnostics.s b/test/MC/ARM/diagnostics.s
index 82d6ae3..21fda1c 100644
--- a/test/MC/ARM/diagnostics.s
+++ b/test/MC/ARM/diagnostics.s
@@ -379,3 +379,17 @@
 
         nop.n
 @ CHECK-ERRORS: error: instruction with .n (narrow) qualifier not allowed in arm mode
+
+	dmbeq #5
+	dsble #15
+	isblo #7
+@ CHECK-ERRORS: error: instruction 'dmb' is not predicable, but condition code specified
+@ CHECK-ERRORS: error: instruction 'dsb' is not predicable, but condition code specified
+@ CHECK-ERRORS: error: instruction 'isb' is not predicable, but condition code specified
+
+	dmblt
+	dsbne
+	isbeq
+@ CHECK-ERRORS: error: instruction 'dmb' is not predicable, but condition code specified
+@ CHECK-ERRORS: error: instruction 'dsb' is not predicable, but condition code specified
+@ CHECK-ERRORS: error: instruction 'isb' is not predicable, but condition code specified
diff --git a/test/MC/ARM/thumb-only-conditionals.s b/test/MC/ARM/thumb-only-conditionals.s
new file mode 100644
index 0000000..55b2cf4
--- /dev/null
+++ b/test/MC/ARM/thumb-only-conditionals.s
@@ -0,0 +1,19 @@
+@ RUN: llvm-mc -triple=thumbv7-apple-ios -o - %s | FileCheck %s
+
+        itte eq
+        dmbeq #11
+        dsbeq #7
+        isbne #15
+@ CHECK: itte eq
+@ CHECK-NEXT: dmbeq ish
+@ CHECK-NEXT: dsbeq nsh
+@ CHECK-NEXT: isbne sy
+
+        itet le
+        dmble
+        dsbgt
+        isble
+@ CHECK: itet le
+@ CHECK-NEXT: dmble sy
+@ CHECK-NEXT: dsbgt sy
+@ CHECK-NEXT: isble sy
-- 
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