Improve sext and zext of TLS variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66922 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/tls13.ll b/test/CodeGen/X86/tls13.ll
new file mode 100644
index 0000000..3089443
--- /dev/null
+++ b/test/CodeGen/X86/tls13.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc -march=x86 -mtriple=i386-linux-gnu > %t
+; RUN: grep {movswl %gs:i@NTPOFF, %eax} %t
+; RUN: grep {movzwl %gs:j@NTPOFF, %eax} %t
+
+@i = thread_local global i16 0
+@j = thread_local global i16 0
+
+define void @f() nounwind optsize {
+entry:
+ %0 = load i16* @i, align 2
+ %1 = sext i16 %0 to i32
+ tail call void @g(i32 %1) nounwind
+ %2 = load i16* @j, align 2
+ %3 = zext i16 %2 to i32
+ tail call void @h(i32 %3) nounwind
+ ret void
+}
+
+declare void @g(i32)
+
+declare void @h(i32)
diff --git a/test/CodeGen/X86/tls14.ll b/test/CodeGen/X86/tls14.ll
new file mode 100644
index 0000000..d3401b6
--- /dev/null
+++ b/test/CodeGen/X86/tls14.ll
@@ -0,0 +1,21 @@
+; RUN: llvm-as < %s | llc -march=x86 -mtriple=i386-linux-gnu > %t
+; RUN: grep {movsbl %gs:i@NTPOFF, %eax} %t
+; RUN: grep {movzbl %gs:j@NTPOFF, %eax} %t
+
+@i = thread_local global i8 0
+@j = thread_local global i8 0
+
+define void @f() nounwind optsize {
+entry:
+ %0 = load i8* @i, align 2
+ %1 = sext i8 %0 to i32
+ tail call void @g(i32 %1) nounwind
+ %2 = load i8* @j, align 2
+ %3 = zext i8 %2 to i32
+ tail call void @h(i32 %3) nounwind
+ ret void
+}
+
+declare void @g(i32)
+
+declare void @h(i32)