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Implement review feedback. Make thumb2 'normal' subtarget feature

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72698 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2009-06-01 20:00:48 +00:00
parent 434dd4fd94
commit 70459bef9c
2 changed files with 12 additions and 13 deletions
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15
lib/Target/ARM/ARMSubtarget.cpp
View File

@ -20,7 +20,8 @@ ARMSubtarget::ARMSubtarget(const Module &M, const std::string &FS,
bool isThumb)
: ARMArchVersion(V4T)
, ARMFPUType(None)
, ThumbMode((isThumb ? Thumb1 : ThumbNone))
, IsThumb(isThumb)
, ThumbMode(Thumb1)
, UseThumbBacktraces(false)
, IsR9Reserved(false)
, stackAlignment(4)
@ -41,22 +42,18 @@ ARMSubtarget::ARMSubtarget(const Module &M, const std::string &FS,
if (Len >= 5 && TT.substr(0, 4) == "armv")
Idx = 4;
else if (Len >= 6 && TT.substr(0, 6) == "thumb") {
isThumb = true;
IsThumb = true;
if (Len >= 7 && TT[5] == 'v')
Idx = 6;
}
if (Idx) {
unsigned SubVer = TT[Idx];
if (SubVer > '4' && SubVer <= '9') {
if (SubVer >= '7') {
if (SubVer >= '7')
ARMArchVersion = V7A;
if (isThumb)
ThumbMode = Thumb2;
} else if (SubVer == '6') {
else if (SubVer == '6')
ARMArchVersion = V6;
if (isThumb && Len >= Idx+3 && TT[Idx+1] == 't' && TT[Idx+2] == '2')
ThumbMode = Thumb2;
} else if (SubVer == '5') {
else if (SubVer == '5') {
ARMArchVersion = V5T;
if (Len >= Idx+3 && TT[Idx+1] == 't' && TT[Idx+2] == 'e')
ARMArchVersion = V5TE;

10
lib/Target/ARM/ARMSubtarget.h
View File

@ -31,7 +31,6 @@ protected:
};
enum ThumbTypeEnum {
ThumbNone,
Thumb1,
Thumb2
};
@ -43,7 +42,10 @@ protected:
/// ARMFPUType - Floating Point Unit type.
ARMFPEnum ARMFPUType;
/// ThumbMode - ARM if in ARM mode, otherwise indicates Thumb version.
/// IsThumb - True if we are in thumb mode, false if in ARM mode.
bool IsThumb;
/// ThumbMode - Indicates supported Thumb version.
ThumbTypeEnum ThumbMode;
/// UseThumbBacktraces - True if we use thumb style backtraces.
@ -102,8 +104,8 @@ protected:
bool isAPCS_ABI() const { return TargetABI == ARM_ABI_APCS; }
bool isAAPCS_ABI() const { return TargetABI == ARM_ABI_AAPCS; }
bool isThumb() const { return ThumbMode >= Thumb1; }
bool isThumb2() const { return ThumbMode >= Thumb2; }
bool isThumb() const { return IsThumb; }
bool isThumb2() const { return IsThumb && (ThumbMode >= Thumb2); }
bool useThumbBacktraces() const { return UseThumbBacktraces; }
bool isR9Reserved() const { return IsR9Reserved; }