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ARM64: uncopy/paste helper function

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It was doing functional but highly suspect operations on bools due to
the more limited shifting operands supported by memory instructions.

Should fix some MSVC warnings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205134 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover
2014-03-30 08:30:28 +00:00
parent 1eaafd7f38
commit bcf0c5fd73
1 changed files with 4 additions and 5 deletions
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9
lib/Target/ARM64/MCTargetDesc/ARM64AddressingModes.h
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@@ -149,7 +149,7 @@ static inline ARM64_AM::ExtendType getMemExtendType(unsigned Imm) {
} }
/// getExtendImm - Encode the extend type and amount for a load/store inst: /// getExtendImm - Encode the extend type and amount for a load/store inst:
/// imm: 3-bit extend amount /// doshift: should the offset be scaled by the access size
/// shifter: 000 ==> uxtb /// shifter: 000 ==> uxtb
/// 001 ==> uxth /// 001 ==> uxth
/// 010 ==> uxtw /// 010 ==> uxtw
@@ -159,10 +159,9 @@ static inline ARM64_AM::ExtendType getMemExtendType(unsigned Imm) {
/// 110 ==> sxtw /// 110 ==> sxtw
/// 111 ==> sxtx /// 111 ==> sxtx
/// {3-1} = shifter /// {3-1} = shifter
/// {0} = imm3 /// {0} = doshift
static inline unsigned getMemExtendImm(ARM64_AM::ExtendType ET, bool Imm) { static inline unsigned getMemExtendImm(ARM64_AM::ExtendType ET, bool DoShift) {
assert((Imm & 0x7) == Imm && "Illegal shifted immedate value!"); return (unsigned(ET) << 1) | unsigned(DoShift);
return (unsigned(ET) << 1) | (Imm & 0x7);
} }
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//