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| author | Chris Lattner <sabre@nondot.org> | 2010-06-15 19:08:40 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-06-15 19:08:40 +0000 |
| commit | 252763fb87f6470930ba1a281563e4ef1a383f9e (patch) | |
| tree | c147221059bdbb2ac4eeb9f0b0acf453ec35abe5 | |
| parent | 52f4ff720cb1747339abafc668550f7b4094b0fc (diff) | |
| download | external_llvm-252763fb87f6470930ba1a281563e4ef1a383f9e.zip external_llvm-252763fb87f6470930ba1a281563e4ef1a383f9e.tar.gz external_llvm-252763fb87f6470930ba1a281563e4ef1a383f9e.tar.bz2 | |
fix fastisel to handle GS and FS relative pointers. Patch by
Nelson Elhage!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106031 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 5 | ||||
| -rw-r--r-- | test/CodeGen/X86/2010-06-14-fast-isel-fs-load.ll | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 47ee820..553e9b1 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -349,6 +349,11 @@ bool X86FastISel::X86SelectAddress(const Value *V, X86AddressMode &AM) { U = C; } + if (const PointerType *Ty = dyn_cast<PointerType>(V->getType())) + if (Ty->getAddressSpace() > 255) + // Fast instruction selection doesn't support pointers through %fs or %gs + return false; + switch (Opcode) { default: break; case Instruction::BitCast: diff --git a/test/CodeGen/X86/2010-06-14-fast-isel-fs-load.ll b/test/CodeGen/X86/2010-06-14-fast-isel-fs-load.ll new file mode 100644 index 0000000..b22a391 --- /dev/null +++ b/test/CodeGen/X86/2010-06-14-fast-isel-fs-load.ll @@ -0,0 +1,6 @@ +; RUN: llc -fast-isel -march=x86 < %s | grep %fs: + +define i32 @test1(i32 addrspace(257)* %arg) nounwind { + %tmp = load i32 addrspace(257)* %arg + ret i32 %tmp +} |