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authorEvan Cheng <evan.cheng@apple.com>2011-10-19 22:22:54 +0000
committerEvan Cheng <evan.cheng@apple.com>2011-10-19 22:22:54 +0000
commitfd230df463107f6439a866103df6201bb3b0ef40 (patch)
tree037dbe9b49dcdb5dfde6832743ec1ab5abe4f7fc /test/CodeGen/X86/tlv-1.ll
parent815af82b74fa0901e818f5d16ee418675f399101 (diff)
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Fix TLS lowering bug. The CopyFromReg must be glued to the TLSCALL. rdar://10291355
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142550 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/tlv-1.ll')
-rw-r--r--test/CodeGen/X86/tlv-1.ll17
1 files changed, 17 insertions, 0 deletions
diff --git a/test/CodeGen/X86/tlv-1.ll b/test/CodeGen/X86/tlv-1.ll
index 5773260f68..92dac30966 100644
--- a/test/CodeGen/X86/tlv-1.ll
+++ b/test/CodeGen/X86/tlv-1.ll
@@ -5,6 +5,7 @@
@c = external thread_local global %struct.A, align 4
define void @main() nounwind ssp {
+; CHECK: main:
entry:
call void @llvm.memset.p0i8.i64(i8* getelementptr inbounds (%struct.A* @c, i32 0, i32 0, i32 0), i8 0, i64 60, i32 1, i1 false)
unreachable
@@ -14,6 +15,22 @@ entry:
; CHECK-NEXT: movq $0, 48(%rax)
}
+; rdar://10291355
+define i32 @test() nounwind readonly ssp {
+entry:
+; CHECK: test:
+; CHECK: movq _a@TLVP(%rip),
+; CHECK: callq *
+; CHECK: movl (%rax), [[REGISTER:%[a-z]+]]
+; CHECK: movq _b@TLVP(%rip),
+; CHECK: callq *
+; CHECK: subl (%rax), [[REGISTER]]
+ %0 = load i32* @a, align 4
+ %1 = load i32* @b, align 4
+ %sub = sub nsw i32 %0, %1
+ ret i32 %sub
+}
+
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
@a = thread_local global i32 0 ; <i32*> [#uses=0]