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authorAnton Korobeynikov <asl@math.spbu.ru>2008-03-11 22:43:42 +0000
committerAnton Korobeynikov <asl@math.spbu.ru>2008-03-11 22:43:42 +0000
commitf1765e8298f21ad3bea2a0e301f5ff47802a80bb (patch)
tree7c2cc30ce5d53d3c1996b109417869ba7e50a238 /test/CodeGen
parent4d86e2a6b8edc814165a3e63f55bfaea0b8f224d (diff)
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Testcase for PR2137
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48258 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
-rw-r--r--test/CodeGen/X86/2008-03-12-ThreadLocalAlias.ll37
1 files changed, 37 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2008-03-12-ThreadLocalAlias.ll b/test/CodeGen/X86/2008-03-12-ThreadLocalAlias.ll
new file mode 100644
index 0000000..0f83b39
--- /dev/null
+++ b/test/CodeGen/X86/2008-03-12-ThreadLocalAlias.ll
@@ -0,0 +1,37 @@
+; RUN: llvm-as < %s | llc -relocation-model=pic | grep TLSGD | count 2
+; PR2137
+
+; ModuleID = '1.c'
+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 = "i386-pc-linux-gnu"
+ %struct.__res_state = type { i32 }
+@__resp = thread_local global %struct.__res_state* @_res ; <%struct.__res_state**> [#uses=1]
+@_res = global %struct.__res_state zeroinitializer, section ".bss" ; <%struct.__res_state*> [#uses=1]
+
+@__libc_resp = hidden alias %struct.__res_state** @__resp ; <%struct.__res_state**> [#uses=2]
+
+define i32 @foo() {
+entry:
+ %retval = alloca i32 ; <i32*> [#uses=1]
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ %tmp = load %struct.__res_state** @__libc_resp, align 4 ; <%struct.__res_state*> [#uses=1]
+ %tmp1 = getelementptr %struct.__res_state* %tmp, i32 0, i32 0 ; <i32*> [#uses=1]
+ store i32 0, i32* %tmp1, align 4
+ br label %return
+return: ; preds = %entry
+ %retval2 = load i32* %retval ; <i32> [#uses=1]
+ ret i32 %retval2
+}
+
+define i32 @bar() {
+entry:
+ %retval = alloca i32 ; <i32*> [#uses=1]
+ %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ %tmp = load %struct.__res_state** @__libc_resp, align 4 ; <%struct.__res_state*> [#uses=1]
+ %tmp1 = getelementptr %struct.__res_state* %tmp, i32 0, i32 0 ; <i32*> [#uses=1]
+ store i32 1, i32* %tmp1, align 4
+ br label %return
+return: ; preds = %entry
+ %retval2 = load i32* %retval ; <i32> [#uses=1]
+ ret i32 %retval2
+}