Fix PR1872: SrcValue and SrcValueOffset should not be used to compute load / store node id.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45167 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 0 deletions

diff --git a/test/CodeGen/X86/2007-12-18-LoadCSEBug.ll b/test/CodeGen/X86/2007-12-18-LoadCSEBug.ll
new file mode 100644
index 0000000000..6309f3c510
--- /dev/null
+++ b/test/CodeGen/X86/2007-12-18-LoadCSEBug.ll
@@ -0,0 +1,28 @@
+; RUN: llvm-as < %s | llc -march=x86 | grep {(%esp)} | count 2
+; PR1872
+
+	%struct.c34007g__designated___XUB = type { i32, i32, i32, i32 }
+	%struct.c34007g__pkg__parent = type { i32*, %struct.c34007g__designated___XUB* }
+
+define void @_ada_c34007g() {
+entry:
+	%x8 = alloca %struct.c34007g__pkg__parent, align 8		; <%struct.c34007g__pkg__parent*> [#uses=2]
+	%tmp1272 = getelementptr %struct.c34007g__pkg__parent* %x8, i32 0, i32 0		; <i32**> [#uses=1]
+	%x82167 = bitcast %struct.c34007g__pkg__parent* %x8 to i64*		; <i64*> [#uses=1]
+	br i1 true, label %bb4668, label %bb848
+
+bb4668:		; preds = %bb4648
+	%tmp5464 = load i64* %x82167, align 8		; <i64> [#uses=1]
+	%tmp5467 = icmp ne i64 0, %tmp5464		; <i1> [#uses=1]
+	%tmp5470 = load i32** %tmp1272, align 8		; <i32*> [#uses=1]
+	%tmp5471 = icmp eq i32* %tmp5470, null		; <i1> [#uses=1]
+	%tmp5475 = or i1 %tmp5471, %tmp5467		; <i1> [#uses=1]
+	%tmp5497 = or i1 %tmp5475, false		; <i1> [#uses=1]
+	br i1 %tmp5497, label %bb848, label %bb5507
+
+bb848:		; preds = %entry
+	ret void
+
+bb5507:		; preds = %bb4668
+	ret void
+}