From 7f1d5252c719ec57a9cba08256770e8b71ba624a Mon Sep 17 00:00:00 2001 From: Torok Edwin Date: Sun, 25 Jan 2009 17:58:56 +0000 Subject: [PATCH] If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62967 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86Subtarget.cpp | 2 -- test/CodeGen/X86/2009-01-25-NoSSE.ll | 20 ++++++++++++++++++++ 2 files changed, 20 insertions(+), 2 deletions(-) create mode 100644 test/CodeGen/X86/2009-01-25-NoSSE.ll diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 5dc5103727d..99708e04cf9 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -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 diff --git a/test/CodeGen/X86/2009-01-25-NoSSE.ll b/test/CodeGen/X86/2009-01-25-NoSSE.ll new file mode 100644 index 00000000000..b12e4137dbd --- /dev/null +++ b/test/CodeGen/X86/2009-01-25-NoSSE.ll @@ -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*) + -- 2.34.1