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Improve sext and zext of TLS variables.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66922 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2009-03-13 18:37:06 +00:00
parent b14cda3c0d
commit 9b922aa3b8
3 changed files with 78 additions and 0 deletions
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21
test/CodeGen/X86/tls14.ll Normal file
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@@ -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)