Test for 78821, sort of. While that bug is nondeterministic,

this test failed consistently on a Darwin build.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78822 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 176 insertions, 0 deletions

diff --git a/test/CodeGen/X86/2009-08-12-badswitch.ll b/test/CodeGen/X86/2009-08-12-badswitch.ll
new file mode 100644
index 0000000000..be910ff3b0
--- /dev/null
+++ b/test/CodeGen/X86/2009-08-12-badswitch.ll
@@ -0,0 +1,176 @@
+; RUN: llvm-as < %s | llc | grep LJT
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
+target triple = "x86_64-apple-darwin10"
+
+declare void @f1() nounwind readnone
+declare void @f2() nounwind readnone
+declare void @f3() nounwind readnone
+declare void @f4() nounwind readnone
+declare void @f5() nounwind readnone
+declare void @f6() nounwind readnone
+declare void @f7() nounwind readnone
+declare void @f8() nounwind readnone
+declare void @f9() nounwind readnone
+declare void @f10() nounwind readnone
+declare void @f11() nounwind readnone
+declare void @f12() nounwind readnone
+declare void @f13() nounwind readnone
+declare void @f14() nounwind readnone
+declare void @f15() nounwind readnone
+declare void @f16() nounwind readnone
+declare void @f17() nounwind readnone
+declare void @f18() nounwind readnone
+declare void @f19() nounwind readnone
+declare void @f20() nounwind readnone
+declare void @f21() nounwind readnone
+declare void @f22() nounwind readnone
+declare void @f23() nounwind readnone
+declare void @f24() nounwind readnone
+declare void @f25() nounwind readnone
+declare void @f26() nounwind readnone
+
+define internal fastcc i32 @foo(i64 %bar) nounwind ssp {
+entry:
+        br label %bb49
+
+bb49:
+	switch i64 %bar, label %RETURN [
+		i64 2, label %RRETURN_2
+		i64 3, label %RRETURN_6
+		i64 4, label %RRETURN_7
+		i64 5, label %RRETURN_14
+		i64 6, label %RRETURN_15
+		i64 7, label %RRETURN_16
+		i64 8, label %RRETURN_17
+		i64 9, label %RRETURN_18
+		i64 10, label %RRETURN_19
+		i64 11, label %RRETURN_20
+		i64 12, label %RRETURN_21
+		i64 13, label %RRETURN_22
+		i64 14, label %RRETURN_24
+		i64 15, label %RRETURN_26
+		i64 16, label %RRETURN_27
+		i64 17, label %RRETURN_28
+		i64 18, label %RRETURN_29
+		i64 19, label %RRETURN_30
+		i64 20, label %RRETURN_31
+		i64 21, label %RRETURN_38
+		i64 22, label %RRETURN_40
+		i64 23, label %RRETURN_42
+		i64 24, label %RRETURN_44
+		i64 25, label %RRETURN_48
+		i64 26, label %RRETURN_52
+		i64 27, label %RRETURN_1
+	]
+
+RETURN:
+        call void @f1()
+        br label %EXIT
+
+RRETURN_2:		; preds = %bb49
+        call void @f2()
+        br label %EXIT
+
+RRETURN_6:		; preds = %bb49
+        call void @f2()
+        br label %EXIT
+
+RRETURN_7:		; preds = %bb49
+        call void @f3()
+        br label %EXIT
+
+RRETURN_14:		; preds = %bb49
+        call void @f4()
+        br label %EXIT
+
+RRETURN_15:		; preds = %bb49
+        call void @f5()
+        br label %EXIT
+
+RRETURN_16:		; preds = %bb49
+        call void @f6()
+        br label %EXIT
+
+RRETURN_17:		; preds = %bb49
+        call void @f7()
+        br label %EXIT
+
+RRETURN_18:		; preds = %bb49
+        call void @f8()
+        br label %EXIT
+
+RRETURN_19:		; preds = %bb49
+        call void @f9()
+        br label %EXIT
+
+RRETURN_20:		; preds = %bb49
+        call void @f10()
+        br label %EXIT
+
+RRETURN_21:		; preds = %bb49
+        call void @f11()
+        br label %EXIT
+
+RRETURN_22:		; preds = %bb49
+        call void @f12()
+        br label %EXIT
+
+RRETURN_24:		; preds = %bb49
+        call void @f13()
+        br label %EXIT
+
+RRETURN_26:		; preds = %bb49
+        call void @f14()
+        br label %EXIT
+
+RRETURN_27:		; preds = %bb49
+        call void @f15()
+        br label %EXIT
+
+RRETURN_28:		; preds = %bb49
+        call void @f16()
+        br label %EXIT
+
+RRETURN_29:		; preds = %bb49
+        call void @f17()
+        br label %EXIT
+
+RRETURN_30:		; preds = %bb49
+        call void @f18()
+        br label %EXIT
+
+RRETURN_31:		; preds = %bb49
+        call void @f19()
+        br label %EXIT
+
+RRETURN_38:		; preds = %bb49
+        call void @f20()
+        br label %EXIT
+
+RRETURN_40:		; preds = %bb49
+        call void @f21()
+        br label %EXIT
+
+RRETURN_42:		; preds = %bb49
+        call void @f22()
+        br label %EXIT
+
+RRETURN_44:		; preds = %bb49
+        call void @f23()
+        br label %EXIT
+
+RRETURN_48:		; preds = %bb49
+        call void @f24()
+        br label %EXIT
+
+RRETURN_52:		; preds = %bb49
+        call void @f25()
+        br label %EXIT
+
+RRETURN_1:		; preds = %bb49
+        call void @f26()
+        br label %EXIT
+
+EXIT:
+        ret i32 0
+}