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Migrate existing backends that care about software floating point

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to use the information in the module rather than TargetOptions.

We've had and clang has used the use-soft-float attribute for some
time now so have the backends set a subtarget feature based on
a particular function now that subtargets are created based on
functions and function attributes.

For the one middle end soft float check go ahead and create
an overloadable TargetLowering::useSoftFloat function that
just checks the TargetSubtargetInfo in all cases.

Also remove the command line option that hard codes whether or
not soft-float is set by using the attribute for all of the
target specific test cases - for the generic just go ahead and
add the attribute in the one case that showed up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237079 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher
2015-05-12 01:26:05 +00:00
parent d1074b0e7f
commit 0552d51c45
28 changed files with 97 additions and 76 deletions
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4
lib/Target/ARM/ARMSubtarget.h
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@@ -100,6 +100,9 @@ protected:
/// InThumbMode - True if compiling for Thumb, false for ARM.
bool InThumbMode;
/// UseSoftFloat - True if we're using software floating point features.
bool UseSoftFloat;
/// HasThumb2 - True if Thumb2 instructions are supported.
bool HasThumb2;
@@ -393,6 +396,7 @@ public:
bool isAPCS_ABI() const;
bool isAAPCS_ABI() const;
bool useSoftFloat() const { return UseSoftFloat; }
bool isThumb() const { return InThumbMode; }
bool isThumb1Only() const { return InThumbMode && !HasThumb2; }
bool isThumb2() const { return InThumbMode && HasThumb2; }