Test case for PR1609.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41110 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/ARM/2007-08-15-ReuseBug.ll b/test/CodeGen/ARM/2007-08-15-ReuseBug.ll
new file mode 100644 (file)
index 0000000..d4ce286
--- /dev/null
+++ b/test/CodeGen/ARM/2007-08-15-ReuseBug.ll
@@ -0,0 +1,106 @@
+; RUN: llvm-as < %s | llc -mtriple=arm-apple-darwin -relocation-model=pic -mattr=+v6 | %prcontext {ldr.*\\!} 1 | grep mov
+; PR1609
+
+       %struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
+       %struct.__sFILEX = type opaque
+       %struct.__sbuf = type { i8*, i32 }
+@_C_nextcmd = external global i32              ; <i32*> [#uses=2]
+@_C_cmds = external global [100 x i8*]         ; <[100 x i8*]*> [#uses=2]
+@.str44 = external constant [2 x i8]           ; <[2 x i8]*> [#uses=1]
+
+define i32 @main(i32 %argc, i8** %argv) {
+entry:
+       br label %cond_next212.i
+
+bb21.i:                ; preds = %cond_next212.i
+       br label %cond_next212.i
+
+bb24.i:                ; preds = %cond_next212.i
+       ret i32 0
+
+bb27.i:                ; preds = %cond_next212.i
+       ret i32 0
+
+bb30.i:                ; preds = %cond_next212.i
+       %tmp205399.i = add i32 %argc_addr.2358.0.i, -1          ; <i32> [#uses=1]
+       br label %cond_next212.i
+
+bb33.i:                ; preds = %cond_next212.i
+       ret i32 0
+
+cond_next73.i:         ; preds = %cond_next212.i
+       ret i32 0
+
+bb75.i:                ; preds = %cond_next212.i
+       ret i32 0
+
+bb77.i:                ; preds = %cond_next212.i
+       ret i32 0
+
+bb79.i:                ; preds = %cond_next212.i
+       ret i32 0
+
+bb102.i:               ; preds = %cond_next212.i
+       br i1 false, label %cond_true110.i, label %cond_next123.i
+
+cond_true110.i:                ; preds = %bb102.i
+       %tmp116.i = getelementptr i8** %argv_addr.2321.0.i, i32 2               ; <i8**> [#uses=1]
+       %tmp117.i = load i8** %tmp116.i         ; <i8*> [#uses=1]
+       %tmp126425.i = call %struct.FILE* @fopen( i8* %tmp117.i, i8* getelementptr ([2 x i8]* @.str44, i32 0, i32 0) )          ; <%struct.FILE*> [#uses=0]
+       ret i32 0
+
+cond_next123.i:                ; preds = %bb102.i
+       %tmp122.i = getelementptr i8* %tmp215.i, i32 2          ; <i8*> [#uses=0]
+       ret i32 0
+
+bb162.i:               ; preds = %cond_next212.i
+       ret i32 0
+
+C_addcmd.exit120.i:            ; preds = %cond_next212.i
+       %tmp3.i.i.i.i105.i = call i8* @calloc( i32 15, i32 1 )          ; <i8*> [#uses=1]
+       %tmp1.i108.i = getelementptr [100 x i8*]* @_C_cmds, i32 0, i32 0                ; <i8**> [#uses=1]
+       store i8* %tmp3.i.i.i.i105.i, i8** %tmp1.i108.i, align 4
+       %tmp.i91.i = load i32* @_C_nextcmd, align 4             ; <i32> [#uses=1]
+       store i32 0, i32* @_C_nextcmd, align 4
+       %tmp3.i.i.i.i95.i = call i8* @calloc( i32 15, i32 1 )           ; <i8*> [#uses=1]
+       %tmp1.i98.i = getelementptr [100 x i8*]* @_C_cmds, i32 0, i32 %tmp.i91.i                ; <i8**> [#uses=1]
+       store i8* %tmp3.i.i.i.i95.i, i8** %tmp1.i98.i, align 4
+       br label %cond_next212.i
+
+bb174.i:               ; preds = %cond_next212.i
+       ret i32 0
+
+bb192.i:               ; preds = %cond_next212.i
+       br label %cond_next212.i
+
+cond_next212.i:                ; preds = %cond_next212.i, %cond_next212.i, %cond_next212.i, %cond_next212.i, %bb192.i, %C_addcmd.exit120.i, %bb30.i, %bb21.i, %entry
+       %max_d.3 = phi i32 [ -1, %entry ], [ %max_d.3, %bb30.i ], [ %max_d.3, %bb21.i ], [ %max_d.3, %C_addcmd.exit120.i ], [ 0, %bb192.i ], [ %max_d.3, %cond_next212.i ], [ %max_d.3, %cond_next212.i ], [ %max_d.3, %cond_next212.i ], [ %max_d.3, %cond_next212.i ]         ; <i32> [#uses=7]
+       %argv_addr.2321.0.i = phi i8** [ %argv, %entry ], [ %tmp214.i, %bb192.i ], [ %tmp214.i, %C_addcmd.exit120.i ], [ %tmp214.i, %bb30.i ], [ %tmp214.i, %bb21.i ], [ %tmp214.i, %cond_next212.i ], [ %tmp214.i, %cond_next212.i ], [ %tmp214.i, %cond_next212.i ], [ %tmp214.i, %cond_next212.i ]           ; <i8**> [#uses=2]
+       %argc_addr.2358.0.i = phi i32 [ %argc, %entry ], [ %tmp205399.i, %bb30.i ], [ 0, %bb21.i ], [ 0, %C_addcmd.exit120.i ], [ 0, %bb192.i ], [ 0, %cond_next212.i ], [ 0, %cond_next212.i ], [ 0, %cond_next212.i ], [ 0, %cond_next212.i ]         ; <i32> [#uses=1]
+       %tmp214.i = getelementptr i8** %argv_addr.2321.0.i, i32 1               ; <i8**> [#uses=9]
+       %tmp215.i = load i8** %tmp214.i         ; <i8*> [#uses=1]
+       %tmp1314.i = sext i8 0 to i32           ; <i32> [#uses=1]
+       switch i32 %tmp1314.i, label %bb192.i [
+                i32 76, label %C_addcmd.exit120.i
+                i32 77, label %bb174.i
+                i32 83, label %bb162.i
+                i32 97, label %bb33.i
+                i32 98, label %bb21.i
+                i32 99, label %bb24.i
+                i32 100, label %bb27.i
+                i32 101, label %cond_next212.i
+                i32 102, label %bb102.i
+                i32 105, label %bb75.i
+                i32 109, label %bb30.i
+                i32 113, label %cond_next212.i
+                i32 114, label %cond_next73.i
+                i32 115, label %bb79.i
+                i32 116, label %cond_next212.i
+                i32 118, label %bb77.i
+                i32 119, label %cond_next212.i
+       ]
+}
+
+declare %struct.FILE* @fopen(i8*, i8*)
+
+declare i8* @calloc(i32, i32)