RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-30 00:24:00 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Only force SSE level if it is not correct.

Browse Source 
Add an assert to check HasX86_64 status.

llvm-svn: 63552
This commit is contained in:
Torok Edwin 2009-02-02 21:57:34 +00:00
parent 32a1b0f0e6
commit 2bc41a36ba
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
lib/Target/X86/X86Subtarget.cpp
View File

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