Add a test case for mips64 unaligned load/store instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157939 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/Mips/mips64load-store-left-right.ll b/test/CodeGen/Mips/mips64load-store-left-right.ll
new file mode 100644 (file)
index 0000000..4561429
--- /dev/null
+++ b/test/CodeGen/Mips/mips64load-store-left-right.ll
@@ -0,0 +1,73 @@
+; RUN: llc -march=mips64el -mcpu=mips64 -mattr=n64 < %s | FileCheck  -check-prefix=EL %s
+; RUN: llc -march=mips64 -mcpu=mips64 -mattr=n64 < %s | FileCheck  -check-prefix=EB %s
+
+%struct.SLL = type { i64 }
+%struct.SI = type { i32 }
+%struct.SUI = type { i32 }
+
+@sll = common global %struct.SLL zeroinitializer, align 1
+@si = common global %struct.SI zeroinitializer, align 1
+@sui = common global %struct.SUI zeroinitializer, align 1
+
+define i64 @foo_load_ll() nounwind readonly {
+entry:
+; EL: ldl $[[R0:[0-9]+]], 7($[[R1:[0-9]+]])
+; EL: ldr $[[R0]], 0($[[R1]])
+; EB: ldl $[[R0:[0-9]+]], 0($[[R1:[0-9]+]])
+; EB: ldr $[[R0]], 7($[[R1]])
+
+  %0 = load i64* getelementptr inbounds (%struct.SLL* @sll, i64 0, i32 0), align 1
+  ret i64 %0
+}
+
+define i64 @foo_load_i() nounwind readonly {
+entry:
+; EL: lwl $[[R0:[0-9]+]], 3($[[R1:[0-9]+]])
+; EL: lwr $[[R0]], 0($[[R1]])
+; EB: lwl $[[R0:[0-9]+]], 0($[[R1:[0-9]+]])
+; EB: lwr $[[R0]], 3($[[R1]])
+
+  %0 = load i32* getelementptr inbounds (%struct.SI* @si, i64 0, i32 0), align 1
+  %conv = sext i32 %0 to i64
+  ret i64 %conv
+}
+
+define i64 @foo_load_ui() nounwind readonly {
+entry:
+; EL: lwl $[[R0:[0-9]+]], 3($[[R1:[0-9]+]])
+; EL: lwr $[[R0]], 0($[[R1]])
+; EL: daddiu $[[R2:[0-9]+]], $zero, 1
+; EL: dsll   $[[R3:[0-9]+]], $[[R2]], 32
+; EL: daddiu $[[R4:[0-9]+]], $[[R3]], -1
+; EL: and    ${{[0-9]+}}, $[[R0]], $[[R4]]
+; EB: lwl $[[R0:[0-9]+]], 0($[[R1:[0-9]+]])
+; EB: lwr $[[R0]], 3($[[R1]])
+
+
+  %0 = load i32* getelementptr inbounds (%struct.SUI* @sui, i64 0, i32 0), align 1
+  %conv = zext i32 %0 to i64
+  ret i64 %conv
+}
+
+define void @foo_store_ll(i64 %a) nounwind {
+entry:
+; EL: sdl $[[R0:[0-9]+]], 7($[[R1:[0-9]+]])
+; EL: sdr $[[R0]], 0($[[R1]])
+; EB: sdl $[[R0:[0-9]+]], 0($[[R1:[0-9]+]])
+; EB: sdr $[[R0]], 7($[[R1]])
+
+  store i64 %a, i64* getelementptr inbounds (%struct.SLL* @sll, i64 0, i32 0), align 1
+  ret void
+}
+
+define void @foo_store_i(i32 %a) nounwind {
+entry:
+; EL: swl $[[R0:[0-9]+]], 3($[[R1:[0-9]+]])
+; EL: swr $[[R0]], 0($[[R1]])
+; EB: swl $[[R0:[0-9]+]], 0($[[R1:[0-9]+]])
+; EB: swr $[[R0]], 3($[[R1]])
+
+  store i32 %a, i32* getelementptr inbounds (%struct.SI* @si, i64 0, i32 0), align 1
+  ret void
+}
+