1 files changed, 57 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/PR17309.ll b/test/CodeGen/Thumb/PR17309.ll
new file mode 100644
index 0000000..b7b08e9
--- /dev/null
+++ b/test/CodeGen/Thumb/PR17309.ll
@@ -0,0 +1,57 @@
+; RUN: llc -mtriple thumbv5-none-linux-gnueabi < %s | FileCheck %s
+
+%struct.C = type { [1000 x i8] }
+%struct.S = type { [1000 x i16] }
+%struct.I = type { [1000 x i32] }
+
+;CHECK-LABEL: pass_C:
+;CHECK-NOT: ldrb    r{{[0-9]+}}, [{{.*}}], #1
+;CHECK-NOT: strb    r{{[0-9]+}}, [{{.*}}], #1
+define void @pass_C() #0 {
+entry:
+  %c = alloca %struct.C, align 1
+  %0 = getelementptr inbounds %struct.C* %c, i32 0, i32 0, i32 0
+  call void @llvm.lifetime.start(i64 1000, i8* %0) #1
+  call void @use_C(%struct.C* byval %c) #3
+  call void @llvm.lifetime.end(i64 1000, i8* %0) #1
+  ret void
+}
+
+;CHECK-LABEL: pass_S:
+;CHECK-NOT: ldrh    r{{[0-9]+}}, [{{.*}}], #2
+;CHECK-NOT: strh    r{{[0-9]+}}, [{{.*}}], #2
+define void @pass_S() #0 {
+entry:
+  %s = alloca %struct.S, align 2
+  %0 = bitcast %struct.S* %s to i8*
+  call void @llvm.lifetime.start(i64 2000, i8* %0) #1
+  call void @use_S(%struct.S* byval %s) #3
+  call void @llvm.lifetime.end(i64 2000, i8* %0) #1
+  ret void
+}
+
+;CHECK-LABEL: pass_I:
+;CHECK-NOT: ldr     r{{[0-9]+}}, [{{.*}}], #4
+;CHECK-NOT: str     r{{[0-9]+}}, [{{.*}}], #4
+define void @pass_I() #0 {
+entry:
+  %i = alloca %struct.I, align 4
+  %0 = bitcast %struct.I* %i to i8*
+  call void @llvm.lifetime.start(i64 4000, i8* %0) #1
+  call void @use_I(%struct.I* byval %i) #3
+  call void @llvm.lifetime.end(i64 4000, i8* %0) #1
+  ret void
+}
+
+declare void @use_C(%struct.C* byval) #2
+declare void @use_S(%struct.S* byval) #2
+declare void @use_I(%struct.I* byval) #2
+
+declare void @llvm.lifetime.start(i64, i8* nocapture) #1
+declare void @llvm.lifetime.end(i64, i8* nocapture) #1
+
+
+attributes #0 = { nounwind optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind }
+attributes #2 = { optsize "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #3 = { nounwind optsize }