1 files changed, 37 insertions, 0 deletions
diff --git a/test/Transforms/SROA/slice-order-independence.ll b/test/Transforms/SROA/slice-order-independence.ll
new file mode 100644
index 0000000..364ef85
--- /dev/null
+++ b/test/Transforms/SROA/slice-order-independence.ll
@@ -0,0 +1,37 @@
+; RUN: opt < %s -sroa -S | FileCheck %s
+target datalayout = "e-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n8:16:32:64"
+
+declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
+
+; Check that the chosen type for a split is independent from the order of
+; slices even in case of types that are skipped because their width is not a
+; byte width multiple
+define void @skipped_inttype_first({ i16*, i32 }*) {
+; CHECK-LABEL: @skipped_inttype_first
+; CHECK: alloca i8*
+  %arg = alloca { i16*, i32 }, align 8
+  %2 = bitcast { i16*, i32 }* %0 to i8*
+  %3 = bitcast { i16*, i32 }* %arg to i8*
+  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %3, i8* %2, i32 16, i32 8, i1 false)
+  %b = getelementptr inbounds { i16*, i32 }* %arg, i64 0, i32 0
+  %pb0 = bitcast i16** %b to i63*
+  %b0 = load i63* %pb0
+  %pb1 = bitcast i16** %b to i8**
+  %b1 = load i8** %pb1
+  ret void
+}
+
+define void @skipped_inttype_last({ i16*, i32 }*) {
+; CHECK-LABEL: @skipped_inttype_last
+; CHECK: alloca i8*
+  %arg = alloca { i16*, i32 }, align 8
+  %2 = bitcast { i16*, i32 }* %0 to i8*
+  %3 = bitcast { i16*, i32 }* %arg to i8*
+  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %3, i8* %2, i32 16, i32 8, i1 false)
+  %b = getelementptr inbounds { i16*, i32 }* %arg, i64 0, i32 0
+  %pb1 = bitcast i16** %b to i8**
+  %b1 = load i8** %pb1
+  %pb0 = bitcast i16** %b to i63*
+  %b0 = load i63* %pb0
+  ret void
+}