vendor/llvm/llvm-r84119

1 files changed, 31 insertions, 0 deletions

diff --git a/test/CodeGen/XCore/unaligned_load.ll b/test/CodeGen/XCore/unaligned_load.ll
new file mode 100644
index 0000000000000..0ee8e1c32667b
--- /dev/null
+++ b/test/CodeGen/XCore/unaligned_load.ll
@@ -0,0 +1,31 @@
+; RUN: llc < %s -march=xcore > %t1.s
+; RUN: grep "bl __misaligned_load" %t1.s | count 1
+; RUN: grep ld16s %t1.s | count 2
+; RUN: grep ldw %t1.s | count 2
+; RUN: grep shl %t1.s | count 2
+; RUN: grep shr %t1.s | count 1
+; RUN: grep zext %t1.s | count 1
+; RUN: grep "or " %t1.s | count 2
+
+; Byte aligned load. Expands to call to __misaligned_load.
+define i32 @align1(i32* %p) nounwind {
+entry:
+	%0 = load i32* %p, align 1		; <i32> [#uses=1]
+	ret i32 %0
+}
+
+; Half word aligned load. Expands to two 16bit loads.
+define i32 @align2(i32* %p) nounwind {
+entry:
+	%0 = load i32* %p, align 2		; <i32> [#uses=1]
+	ret i32 %0
+}
+
+@a = global [5 x i8] zeroinitializer, align 4
+
+; Constant offset from word aligned base. Expands to two 32bit loads.
+define i32 @align3() nounwind {
+entry:
+	%0 = load i32* bitcast (i8* getelementptr ([5 x i8]* @a, i32 0, i32 1) to i32*), align 1
+	ret i32 %0
+}