basic jump table test

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30592 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/Alpha/jmp_table.ll b/test/CodeGen/Alpha/jmp_table.ll
new file mode 100644 (file)
index 0000000..c6729e1
--- /dev/null
+++ b/test/CodeGen/Alpha/jmp_table.ll
@@ -0,0 +1,98 @@
+; try to check that we have the most important instructions, which shouldn't appear otherwise
+; RUN: llvm-as < %s | llc -march=alpha | grep 'jmp'
+; RUN: llvm-as < %s | llc -march=alpha | grep 'gprel32'
+; RUN: llvm-as < %s | llc -march=alpha | grep 'ldl'
+
+target endian = little
+target pointersize = 64
+target triple = "alphaev67-unknown-linux-gnu"
+%str = internal constant [2 x sbyte] c"1\00"           ; <[2 x sbyte]*> [#uses=1]
+%str1 = internal constant [2 x sbyte] c"2\00"          ; <[2 x sbyte]*> [#uses=1]
+%str2 = internal constant [2 x sbyte] c"3\00"          ; <[2 x sbyte]*> [#uses=1]
+%str3 = internal constant [2 x sbyte] c"4\00"          ; <[2 x sbyte]*> [#uses=1]
+%str4 = internal constant [2 x sbyte] c"5\00"          ; <[2 x sbyte]*> [#uses=1]
+%str5 = internal constant [2 x sbyte] c"6\00"          ; <[2 x sbyte]*> [#uses=1]
+%str6 = internal constant [2 x sbyte] c"7\00"          ; <[2 x sbyte]*> [#uses=1]
+%str7 = internal constant [2 x sbyte] c"8\00"          ; <[2 x sbyte]*> [#uses=1]
+
+implementation   ; Functions:
+
+int %main(int %x, sbyte** %y) {
+entry:
+       %x_addr = alloca int            ; <int*> [#uses=2]
+       %y_addr = alloca sbyte**                ; <sbyte***> [#uses=1]
+       %retval = alloca int, align 4           ; <int*> [#uses=2]
+       %tmp = alloca int, align 4              ; <int*> [#uses=2]
+       %foo = alloca sbyte*, align 8           ; <sbyte**> [#uses=9]
+       "alloca point" = cast int 0 to int              ; <int> [#uses=0]
+       store int %x, int* %x_addr
+       store sbyte** %y, sbyte*** %y_addr
+       %tmp = load int* %x_addr                ; <int> [#uses=1]
+       switch int %tmp, label %bb15 [
+                int 1, label %bb
+                int 2, label %bb1
+                int 3, label %bb3
+                int 4, label %bb5
+                int 5, label %bb7
+                int 6, label %bb9
+                int 7, label %bb11
+                int 8, label %bb13
+       ]
+
+bb:            ; preds = %entry
+       %tmp = getelementptr [2 x sbyte]* %str, int 0, ulong 0          ; <sbyte*> [#uses=1]
+       store sbyte* %tmp, sbyte** %foo
+       br label %bb16
+
+bb1:           ; preds = %entry
+       %tmp2 = getelementptr [2 x sbyte]* %str1, int 0, ulong 0                ; <sbyte*> [#uses=1]
+       store sbyte* %tmp2, sbyte** %foo
+       br label %bb16
+
+bb3:           ; preds = %entry
+       %tmp4 = getelementptr [2 x sbyte]* %str2, int 0, ulong 0                ; <sbyte*> [#uses=1]
+       store sbyte* %tmp4, sbyte** %foo
+       br label %bb16
+
+bb5:           ; preds = %entry
+       %tmp6 = getelementptr [2 x sbyte]* %str3, int 0, ulong 0                ; <sbyte*> [#uses=1]
+       store sbyte* %tmp6, sbyte** %foo
+       br label %bb16
+
+bb7:           ; preds = %entry
+       %tmp8 = getelementptr [2 x sbyte]* %str4, int 0, ulong 0                ; <sbyte*> [#uses=1]
+       store sbyte* %tmp8, sbyte** %foo
+       br label %bb16
+
+bb9:           ; preds = %entry
+       %tmp10 = getelementptr [2 x sbyte]* %str5, int 0, ulong 0               ; <sbyte*> [#uses=1]
+       store sbyte* %tmp10, sbyte** %foo
+       br label %bb16
+
+bb11:          ; preds = %entry
+       %tmp12 = getelementptr [2 x sbyte]* %str6, int 0, ulong 0               ; <sbyte*> [#uses=1]
+       store sbyte* %tmp12, sbyte** %foo
+       br label %bb16
+
+bb13:          ; preds = %entry
+       %tmp14 = getelementptr [2 x sbyte]* %str7, int 0, ulong 0               ; <sbyte*> [#uses=1]
+       store sbyte* %tmp14, sbyte** %foo
+       br label %bb16
+
+bb15:          ; preds = %entry
+       br label %bb16
+
+bb16:          ; preds = %bb15, %bb13, %bb11, %bb9, %bb7, %bb5, %bb3, %bb1, %bb
+       %tmp17 = load sbyte** %foo              ; <sbyte*> [#uses=1]
+       %tmp18 = call int (...)* %print( sbyte* %tmp17 )                ; <int> [#uses=0]
+       store int 0, int* %tmp
+       %tmp19 = load int* %tmp         ; <int> [#uses=1]
+       store int %tmp19, int* %retval
+       br label %return
+
+return:                ; preds = %bb16
+       %retval = load int* %retval             ; <int> [#uses=1]
+       ret int %retval
+}
+
+declare int %print(...)