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authordim <dim@FreeBSD.org>2012-08-15 19:34:23 +0000
committerdim <dim@FreeBSD.org>2012-08-15 19:34:23 +0000
commit721c201bd55ffb73cb2ba8d39e0570fa38c44e15 (patch)
treeeacfc83d988e4b9d11114387ae7dc41243f2a363 /test/CodeGen/X86/gs-fold.ll
parent2b2816e083a455f7a656ae88b0fd059d1688bb36 (diff)
downloadFreeBSD-src-721c201bd55ffb73cb2ba8d39e0570fa38c44e15.zip
FreeBSD-src-721c201bd55ffb73cb2ba8d39e0570fa38c44e15.tar.gz
Vendor import of llvm trunk r161861:
http://llvm.org/svn/llvm-project/llvm/trunk@161861
Diffstat (limited to 'test/CodeGen/X86/gs-fold.ll')
-rw-r--r--test/CodeGen/X86/gs-fold.ll20
1 files changed, 20 insertions, 0 deletions
diff --git a/test/CodeGen/X86/gs-fold.ll b/test/CodeGen/X86/gs-fold.ll
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+++ b/test/CodeGen/X86/gs-fold.ll
@@ -0,0 +1,20 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-freebsd | FileCheck %s --check-prefix=CHECK-FBSD
+; RUN: llc < %s -mtriple=x86_64-unknown-linux | FileCheck %s --check-prefix=CHECK-LINUX
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+
+%struct.thread = type { i32, i32, i32, i32 }
+
+define i32 @test() nounwind uwtable {
+entry:
+ %0 = load volatile %struct.thread* addrspace(256)* null
+ %c = getelementptr inbounds %struct.thread* %0, i64 0, i32 2
+ %1 = load i32* %c, align 4
+ ret i32 %1
+}
+
+; Check that we are not assuming that gs contains the address of gs if we are not targeting Linux
+; CHECK-FBSD: movq %gs:0, %rax
+; CHECK-FBSD: movl 8(%rax), %eax
+; Check that we are assuming that gs contains the address of gs if we are targeting Linux
+; CHECK-LINUX: movl %gs:8, %eax
+
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