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If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402. 

llvm-svn: 62967
This commit is contained in:
Torok Edwin 2009-01-25 17:58:56 +00:00
parent f1d38be265
commit a23c73bbdc
2 changed files with 20 additions and 2 deletions
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2
llvm/lib/Target/X86/X86Subtarget.cpp
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@ -331,8 +331,6 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS, bool is64Bit)
// are enabled. These are available on all x86-64 CPUs.
if (Is64Bit) {
HasX86_64 = true;
if (X86SSELevel < SSE2)
X86SSELevel = SSE2;
}
DOUT << "Subtarget features: SSELevel " << X86SSELevel
<< ", 3DNowLevel " << X863DNowLevel

20
llvm/test/CodeGen/X86/2009-01-25-NoSSE.ll Normal file
View File

@ -0,0 +1,20 @@
; RUN: llvm-as < %s | llc -march=x86-64 -mattr=-sse,-sse2 | not grep xmm
; PR3402
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"
target triple = "x86_64-unknown-linux-gnu"
%struct.ktermios = type { i32, i32, i32, i32, i8, [19 x i8], i32, i32 }
define void @foo() nounwind {
entry:
%termios = alloca %struct.ktermios, align 8
%termios1 = bitcast %struct.ktermios* %termios to i8*
call void @llvm.memset.i64(i8* %termios1, i8 0, i64 44, i32 8)
call void @bar(%struct.ktermios* %termios) nounwind
ret void
}
declare void @llvm.memset.i64(i8* nocapture, i8, i64, i32) nounwind
declare void @bar(%struct.ktermios*)