vendor/llvm/llvm-release_360-r226102

1 files changed, 21 insertions, 0 deletions

diff --git a/test/CodeGen/Thumb/ldm-merge-struct.ll b/test/CodeGen/Thumb/ldm-merge-struct.ll
new file mode 100644
index 0000000000000..2f732e00bf745
--- /dev/null
+++ b/test/CodeGen/Thumb/ldm-merge-struct.ll
@@ -0,0 +1,21 @@
+; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | FileCheck %s
+target datalayout = "e-m:e-p:32:32-i1:8:32-i8:8:32-i16:16:32-i64:64-v128:64:128-a:0:32-n32-S64"
+target triple = "thumbv6m-none--eabi"
+
+%struct.S = type { i32, i32 }
+
+@s = common global %struct.S zeroinitializer, align 4
+
+define i32 @f() {
+entry:
+; CHECK-LABEL: f:
+; CHECK: ldm r[[BASE:[0-9]]],
+; CHECK-NEXT-NOT: subs r[[BASE]]
+  %0 = load i32* getelementptr inbounds (%struct.S* @s, i32 0, i32 0), align 4
+  %1 = load i32* getelementptr inbounds (%struct.S* @s, i32 0, i32 1), align 4
+  %cmp = icmp sgt i32 %0, %1
+  %2 = sub i32 0, %1
+  %cond.p = select i1 %cmp, i32 %1, i32 %2
+  %cond = add i32 %cond.p, %0
+  ret i32 %cond
+}