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authorJim Grosbach <grosbach@apple.com>2010-03-25 23:32:19 +0000
committerJim Grosbach <grosbach@apple.com>2010-03-25 23:32:19 +0000
commitbd17bc96bf54cc58d91c2d20964c6c5e28bffa57 (patch)
treecab0b92000926f0dba8e5f471c7294d2009db045 /lib/Target/ARM/ARMSubtarget.cpp
parent44424646ac9db5c4d3919462bd0831ec22783085 (diff)
switch the flag for using NEON for SP floating point to a subtarget 'feature'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99568 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMSubtarget.cpp')
-rw-r--r--lib/Target/ARM/ARMSubtarget.cpp14
1 files changed, 1 insertions, 13 deletions
diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp
index 76ed66fe7d..9e55cd8700 100644
--- a/lib/Target/ARM/ARMSubtarget.cpp
+++ b/lib/Target/ARM/ARMSubtarget.cpp
@@ -22,10 +22,6 @@ using namespace llvm;
static cl::opt<bool>
ReserveR9("arm-reserve-r9", cl::Hidden,
cl::desc("Reserve R9, making it unavailable as GPR"));
-static cl::opt<bool>
-UseNEONFP("arm-use-neon-fp",
- cl::desc("Use NEON for single-precision FP"),
- cl::init(false), cl::Hidden);
static cl::opt<bool>
UseMOVT("arm-use-movt",
@@ -35,7 +31,7 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
bool isT)
: ARMArchVersion(V4)
, ARMFPUType(None)
- , UseNEONForSinglePrecisionFP(UseNEONFP)
+ , UseNEONForSinglePrecisionFP(false)
, SlowVMLx(false)
, IsThumb(isT)
, ThumbMode(Thumb1)
@@ -116,14 +112,6 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
if (!isThumb() || hasThumb2())
PostRAScheduler = true;
-
- // Set CPU specific features.
- if (CPUString == "cortex-a8") {
- // On Cortex-a8, it's faster to perform some single-precision FP
- // operations with NEON instructions.
- if (UseNEONFP.getPosition() == 0)
- UseNEONForSinglePrecisionFP = true;
- }
}
/// GVIsIndirectSymbol - true if the GV will be accessed via an indirect symbol.