Fix the remaining atomic intrinsics to use the right register classes on Thumb2,
and add some basic tests for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132235 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/atomic-op.ll b/test/CodeGen/ARM/atomic-op.ll
new file mode 100644
index 0000000..03940e3
--- /dev/null
+++ b/test/CodeGen/ARM/atomic-op.ll
@@ -0,0 +1,103 @@
+; RUN: llc < %s -mtriple=armv7-apple-darwin10 | FileCheck %s
+; RUN: llc < %s -mtriple=thumbv7-apple-darwin10 | FileCheck %s
+
+define void @func(i32 %argc, i8** %argv) nounwind {
+entry:
+ %argc.addr = alloca i32 ; <i32*> [#uses=1]
+ %argv.addr = alloca i8** ; <i8***> [#uses=1]
+ %val1 = alloca i32 ; <i32*> [#uses=2]
+ %val2 = alloca i32 ; <i32*> [#uses=15]
+ %andt = alloca i32 ; <i32*> [#uses=2]
+ %ort = alloca i32 ; <i32*> [#uses=2]
+ %xort = alloca i32 ; <i32*> [#uses=2]
+ %old = alloca i32 ; <i32*> [#uses=18]
+ %temp = alloca i32 ; <i32*> [#uses=2]
+ store i32 %argc, i32* %argc.addr
+ store i8** %argv, i8*** %argv.addr
+ store i32 0, i32* %val1
+ store i32 31, i32* %val2
+ store i32 3855, i32* %andt
+ store i32 3855, i32* %ort
+ store i32 3855, i32* %xort
+ store i32 4, i32* %temp
+ %tmp = load i32* %temp
+ ; CHECK: ldrex
+ ; CHECK: add
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.add.i32.p0i32( i32* %val1, i32 %tmp ) ; <i32>:0 [#uses=1]
+ store i32 %0, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: sub
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.sub.i32.p0i32( i32* %val2, i32 30 ) ; <i32>:1 [#uses=1]
+ store i32 %1, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: add
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.add.i32.p0i32( i32* %val2, i32 1 ) ; <i32>:2 [#uses=1]
+ store i32 %2, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: sub
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.sub.i32.p0i32( i32* %val2, i32 1 ) ; <i32>:3 [#uses=1]
+ store i32 %3, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: and
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.and.i32.p0i32( i32* %andt, i32 4080 ) ; <i32>:4 [#uses=1]
+ store i32 %4, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: or
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.or.i32.p0i32( i32* %ort, i32 4080 ) ; <i32>:5 [#uses=1]
+ store i32 %5, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: eor
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.xor.i32.p0i32( i32* %xort, i32 4080 ) ; <i32>:6 [#uses=1]
+ store i32 %6, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: cmp
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.min.i32.p0i32( i32* %val2, i32 16 ) ; <i32>:7 [#uses=1]
+ store i32 %7, i32* %old
+ %neg = sub i32 0, 1 ; <i32> [#uses=1]
+ ; CHECK: ldrex
+ ; CHECK: cmp
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.min.i32.p0i32( i32* %val2, i32 %neg ) ; <i32>:8 [#uses=1]
+ store i32 %8, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: cmp
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.max.i32.p0i32( i32* %val2, i32 1 ) ; <i32>:9 [#uses=1]
+ store i32 %9, i32* %old
+ ; CHECK: ldrex
+ ; CHECK: cmp
+ ; CHECK: strex
+ call i32 @llvm.atomic.load.max.i32.p0i32( i32* %val2, i32 0 ) ; <i32>:10 [#uses=1]
+ store i32 %10, i32* %old
+ ret void
+}
+
+declare i32 @llvm.atomic.load.add.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.sub.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.and.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.or.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.xor.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.min.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.max.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.umax.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.load.umin.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.swap.i32.p0i32(i32*, i32) nounwind
+
+declare i32 @llvm.atomic.cmp.swap.i32.p0i32(i32*, i32, i32) nounwind