1 files changed, 51 insertions, 0 deletions
diff --git a/test/MC/ARM/thumb2-ldrb-ldrh.s b/test/MC/ARM/thumb2-ldrb-ldrh.s
new file mode 100644
index 0000000..8c97987
--- /dev/null
+++ b/test/MC/ARM/thumb2-ldrb-ldrh.s
@@ -0,0 +1,51 @@
+@ RUN: not llvm-mc -triple thumbv7a-none-eabi -show-encoding < %s 2>&1 | FileCheck %s --check-prefix=CHECK
+@ RUN: not llvm-mc -triple thumbv7m-none-eabi -show-encoding < %s 2>&1 | FileCheck %s --check-prefix=CHECK
+
+@ Thumb2 LDRS?[BH] are not valid when Rt == PC (these encodings are used for
+@ preload hints).
+@ We don't check the actual error messages here as they are currently not very
+@ helpful, see http://llvm.org/bugs/show_bug.cgi?id=21066.
+
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+  ldrb    pc, [r0, #10]
+  ldrb.w  pc, [r1, #10]
+  ldrb    pc, [r2, #-5]
+  ldrb    pc, [pc, #7]
+  ldrb.w  pc, [pc, #7]
+
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+  ldrsb   pc, [r3, #10]
+  ldrsb.w pc, [r4, #10]
+  ldrsb   pc, [r5, #-5]
+  ldrsb   pc, [pc, #7]
+  ldrsb.w pc, [pc, #7]
+
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+  ldrh    pc, [r6, #10]
+  ldrh.w  pc, [r7, #10]
+  ldrh    pc, [r8, #-5]
+  ldrh    pc, [pc, #7]
+  ldrh.w  pc, [pc, #7]
+
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+@ CHECK: error:
+  ldrsh   pc, [r9, #10]
+  ldrsh.w pc, [r10, #10]
+  ldrsh   pc, [r11, #-5]
+  ldrsh   pc, [pc, #7]
+  ldrsh.w pc, [pc, #7]