Fix swift-atomics testcase

This testcase was not testing what it meant: because there were only two checks for
dmb {{ish}} in the second function, it could have missed a bug where one of the three
required dmb {{ish}} became dmb {{ishst}}. As I was fixing it, I also added
CHECK-LABELs to make it a bit less brittle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218341 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/ARM/swift-atomics.ll b/test/CodeGen/ARM/swift-atomics.ll
index 1d7181557100a4f788610d1f2a2dfa314307cdf9..8b100f1f41f2a84127b4fb604ae00fcbdb91a0a3 100644 (file)
--- a/test/CodeGen/ARM/swift-atomics.ll
+++ b/test/CodeGen/ARM/swift-atomics.ll
@@ -8,6 +8,7 @@ define void @test_store_release(i32* %p, i32 %v) {
 ; CHECK: dmb ishst
 ; CHECK: str
 
+; CHECK-STRICT-ATOMIC-LABEL: test_store_release:
 ; CHECK-STRICT-ATOMIC: dmb {{ish$}}
   store atomic i32 %v, i32* %p release, align 4
   ret void
@@ -24,7 +25,11 @@ define i32 @test_seq_cst(i32* %p, i32 %v) {
 ; CHECK: ldr
 ; CHECK: dmb {{ish$}}
 
+; CHECK-STRICT-ATOMIC-LABEL: test_seq_cst:
 ; CHECK-STRICT-ATOMIC: dmb {{ish$}}
+; CHECK-STRICT-ATOMIC: str
+; CHECK-STRICT-ATOMIC: dmb {{ish$}}
+; CHECK-STRICT-ATOMIC: ldr
 ; CHECK-STRICT-ATOMIC: dmb {{ish$}}
 
   store atomic i32 %v, i32* %p seq_cst, align 4
@@ -39,6 +44,7 @@ define i32 @test_acq(i32* %addr) {
 ; CHECK: ldr
 ; CHECK: dmb {{ish$}}
 
+; CHECK-STRICT-ATOMIC-LABEL: test_acq:
 ; CHECK-STRICT-ATOMIC: dmb {{ish$}}
   %val = load atomic i32* %addr acquire, align 4
   ret i32 %val