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| author | Dan Gohman <gohman@apple.com> | 2009-02-23 22:03:08 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-02-23 22:03:08 +0000 |
| commit | e9865945ad8286a007d8b8465703c5b242f94caa (patch) | |
| tree | 09ee4ed712b5d3d9dec9524f119d5523eb0b6e90 | |
| parent | 638b8b446e7f08d348fe4f3b290c08f6854fc8ba (diff) | |
| download | llvm-e9865945ad8286a007d8b8465703c5b242f94caa.tar.gz llvm-e9865945ad8286a007d8b8465703c5b242f94caa.tar.bz2 llvm-e9865945ad8286a007d8b8465703c5b242f94caa.tar.xz | |
Fast-isel can't do TLS yet, so it should fall back to SDISel
if it sees TLS addresses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65341 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 6 | ||||
| -rw-r--r-- | test/CodeGen/X86/fast-isel-tls.ll | 10 |
2 files changed, 16 insertions, 0 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index e00697cecb..e7b70b17ef 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -21,6 +21,7 @@ #include "X86TargetMachine.h" #include "llvm/CallingConv.h" #include "llvm/DerivedTypes.h" +#include "llvm/GlobalVariable.h" #include "llvm/Instructions.h" #include "llvm/Intrinsics.h" #include "llvm/CodeGen/FastISel.h" @@ -433,6 +434,11 @@ bool X86FastISel::X86SelectAddress(Value *V, X86AddressMode &AM, bool isCall) { (AM.Base.Reg != 0 || AM.IndexReg != 0)) return false; + // Can't handle TLS yet. + if (GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV)) + if (GVar->isThreadLocal()) + return false; + // Set up the basic address. AM.GV = GV; if (!isCall && diff --git a/test/CodeGen/X86/fast-isel-tls.ll b/test/CodeGen/X86/fast-isel-tls.ll new file mode 100644 index 0000000000..4dd14e6b21 --- /dev/null +++ b/test/CodeGen/X86/fast-isel-tls.ll @@ -0,0 +1,10 @@ +; RUN: llvm-as < %s | llc -march=x86 -relocation-model=pic -mtriple=i686-unknown-linux-gnu -fast-isel | grep __tls_get_addr +; PR3654 + +@v = thread_local global i32 0 +define i32 @f() nounwind { +entry: + %t = load i32* @v + %s = add i32 %t, 1 + ret i32 %s +} |