Fix a number of local register allocator issues: PR1609.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46821 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 19 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/2008-02-04-LocalRegAllocBug.ll b/test/CodeGen/ARM/2008-02-04-LocalRegAllocBug.ll
new file mode 100644
index 0000000000..5d3322d390
--- /dev/null
+++ b/test/CodeGen/ARM/2008-02-04-LocalRegAllocBug.ll
@@ -0,0 +1,19 @@
+; RUN: llvm-as < %s | llc -mtriple=arm-linux-gnueabi -regalloc=local
+; PR1609
+
+	%struct.encode_aux_nearestmatch = type { i32*, i32*, i32*, i32*, i32, i32 }
+	%struct.encode_aux_pigeonhole = type { float, float, i32, i32, i32*, i32, i32*, i32*, i32* }
+	%struct.encode_aux_threshmatch = type { float*, i32*, i32, i32 }
+	%struct.oggpack_buffer = type { i32, i32, i8*, i8*, i32 }
+	%struct.static_codebook = type { i32, i32, i32*, i32, i32, i32, i32, i32, i32*, %struct.encode_aux_nearestmatch*, %struct.encode_aux_threshmatch*, %struct.encode_aux_pigeonhole*, i32 }
+
+define i32 @vorbis_staticbook_pack(%struct.static_codebook* %c, %struct.oggpack_buffer* %opb) {
+entry:
+	%opb_addr = alloca %struct.oggpack_buffer*		; <%struct.oggpack_buffer**> [#uses=1]
+	%tmp1 = load %struct.oggpack_buffer** %opb_addr, align 4		; <%struct.oggpack_buffer*> [#uses=1]
+	call void @oggpack_write( %struct.oggpack_buffer* %tmp1, i32 5653314, i32 24 ) nounwind 
+	call void @oggpack_write( %struct.oggpack_buffer* null, i32 0, i32 24 ) nounwind 
+	unreachable
+}
+
+declare void @oggpack_write(%struct.oggpack_buffer*, i32, i32)