Verify that jump tables are emitted to the same section as the function is,

when codegen'ing in pic mode.  This fixes a miscompilation of a switch stmt
in a template, as the template goes to a non-.text section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30743 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/pic_jumptable.ll b/test/CodeGen/X86/pic_jumptable.ll
new file mode 100644 (file)
index 0000000..affc933
--- /dev/null
+++ b/test/CodeGen/X86/pic_jumptable.ll
@@ -0,0 +1,79 @@
+; RUN: llvm-as < %s | llc -relocation-model=pic -march=x86 | not grep -F .text
+target endian = little
+target pointersize = 32
+target triple = "i386-linux-gnu"
+
+implementation   ; Functions:
+
+declare void %_Z3bari( int  )
+
+linkonce void %_Z3fooILi1EEvi(int %Y) {
+entry:
+       %Y_addr = alloca int            ; <int*> [#uses=2]
+       "alloca point" = cast int 0 to int              ; <int> [#uses=0]
+       store int %Y, int* %Y_addr
+       %tmp = load int* %Y_addr                ; <int> [#uses=1]
+       switch int %tmp, label %bb10 [
+                int 0, label %bb3
+                int 1, label %bb
+                int 2, label %bb
+                int 3, label %bb
+                int 4, label %bb
+                int 5, label %bb
+                int 6, label %bb
+                int 7, label %bb
+                int 8, label %bb
+                int 9, label %bb
+                int 10, label %bb
+                int 12, label %bb1
+                int 13, label %bb5
+                int 14, label %bb6
+                int 16, label %bb2
+                int 17, label %bb4
+                int 23, label %bb8
+                int 27, label %bb7
+                int 34, label %bb9
+       ]
+
+bb:            ; preds = %entry, %entry, %entry, %entry, %entry, %entry, %entry, %entry, %entry, %entry
+       br label %bb1
+
+bb1:           ; preds = %bb, %entry
+       br label %bb2
+
+bb2:           ; preds = %bb1, %entry
+       call void %_Z3bari( int 1 )
+       br label %bb11
+
+bb3:           ; preds = %entry
+       br label %bb4
+
+bb4:           ; preds = %bb3, %entry
+       br label %bb5
+
+bb5:           ; preds = %bb4, %entry
+       br label %bb6
+
+bb6:           ; preds = %bb5, %entry
+       call void %_Z3bari( int 2 )
+       br label %bb11
+
+bb7:           ; preds = %entry
+       br label %bb8
+
+bb8:           ; preds = %bb7, %entry
+       br label %bb9
+
+bb9:           ; preds = %bb8, %entry
+       call void %_Z3bari( int 3 )
+       br label %bb11
+
+bb10:          ; preds = %entry
+       br label %bb11
+
+bb11:          ; preds = %bb10, %bb9, %bb6, %bb2
+       br label %return
+
+return:                ; preds = %bb11
+       ret void
+}