Crashed the new type legalizer. Not likely to catch

any bugs in the future since to get the crash you also
need hacked in fake libcall support (which creates odd
but legal trees), but since adding it doesn't hurt...
Thanks to Chris for this ultimately reduced version.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46706 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/Generic/2008-01-30-LoadCrash.ll b/test/CodeGen/Generic/2008-01-30-LoadCrash.ll
new file mode 100644 (file)
index 0000000..5eebfcb
--- /dev/null
+++ b/test/CodeGen/Generic/2008-01-30-LoadCrash.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
+target triple = "i686-pc-linux-gnu"
+@letters.3100 = external constant [63 x i8]            ; <[63 x i8]*> [#uses=2]
+
+define i32 @mkstemps(i8* %pattern, i32 %suffix_len, i64 %tmp42.rle) nounwind  {
+bb20:
+       br label %bb41
+
+bb41:          ; preds = %bb20
+       %tmp8182 = trunc i64 %tmp42.rle to i32          ; <i32> [#uses=1]
+       %tmp83 = getelementptr [63 x i8]* @letters.3100, i32 0, i32 %tmp8182            ; <i8*> [#uses=1]
+       %tmp84 = load i8* %tmp83, align 1               ; <i8> [#uses=1]
+       store i8 %tmp84, i8* null, align 1
+       %tmp90 = urem i64 %tmp42.rle, 62                ; <i64> [#uses=1]
+       %tmp9091 = trunc i64 %tmp90 to i32              ; <i32> [#uses=1]
+       %tmp92 = getelementptr [63 x i8]* @letters.3100, i32 0, i32 %tmp9091            ; <i8*> [#uses=1]
+       store i8* %tmp92, i8** null, align 1
+       ret i32 -1
+}