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Only force SSE level if it is not correct.
Add an assert to check HasX86_64 status. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63552 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -322,16 +322,23 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS, bool is64Bit)
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// If feature string is not empty, parse features string.
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std::string CPU = GetCurrentX86CPU();
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ParseSubtargetFeatures(FS, CPU);
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// All X86-64 CPUs also have SSE2, however user might request no SSE via
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// -mattr, so don't force SSELevel here.
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} else {
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// Otherwise, use CPUID to auto-detect feature set.
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AutoDetectSubtargetFeatures();
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if (Is64Bit && X86SSELevel < SSE2) {
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// Make sure SSE2 is enabled, it is available on all X86-64 CPUs.
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X86SSELevel = SSE2;
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}
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}
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// If requesting codegen for X86-64, make sure that 64-bit and SSE2 features
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// are enabled. These are available on all x86-64 CPUs.
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// If requesting codegen for X86-64, make sure that 64-bit features
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// are enabled.
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if (Is64Bit) {
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HasX86_64 = true;
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HasX86_64 = true;
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}
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assert(!Is64Bit || HasX86_64);
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DOUT << "Subtarget features: SSELevel " << X86SSELevel
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<< ", 3DNowLevel " << X863DNowLevel
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<< ", 64bit " << HasX86_64 << "\n";
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