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author | John Thompson <John.Thompson.JTSoftware@gmail.com> | 2010-10-29 17:29:13 +0000 |
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committer | John Thompson <John.Thompson.JTSoftware@gmail.com> | 2010-10-29 17:29:13 +0000 |
commit | 44ab89eb376af838d1123293a79975aede501464 (patch) | |
tree | 36a9f7729ea72c11d16566b7b0d57a843d741b6f /include/llvm/InlineAsm.h | |
parent | 3545635a606206232da80a4c18862fa3e06b9e4f (diff) | |
download | external_llvm-44ab89eb376af838d1123293a79975aede501464.zip external_llvm-44ab89eb376af838d1123293a79975aede501464.tar.gz external_llvm-44ab89eb376af838d1123293a79975aede501464.tar.bz2 |
Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117667 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/InlineAsm.h')
-rw-r--r-- | include/llvm/InlineAsm.h | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/include/llvm/InlineAsm.h b/include/llvm/InlineAsm.h index 0cb55b7..9343834 100644 --- a/include/llvm/InlineAsm.h +++ b/include/llvm/InlineAsm.h @@ -16,8 +16,8 @@ #ifndef LLVM_INLINEASM_H #define LLVM_INLINEASM_H +#include "llvm/ADT/SmallVector.h" #include "llvm/Value.h" -#include <vector> namespace llvm { @@ -87,6 +87,8 @@ public: isClobber // '~x' }; + typedef SmallVector<std::string,8> ConstraintCodeVector; + struct SubConstraintInfo { /// MatchingInput - If this is not -1, this is an output constraint where an /// input constraint is required to match it (e.g. "0"). The value is the @@ -95,10 +97,14 @@ public: signed char MatchingInput; /// Code - The constraint code, either the register name (in braces) or the /// constraint letter/number. - std::vector<std::string> Codes; + ConstraintCodeVector Codes; /// Default constructor. SubConstraintInfo() : MatchingInput(-1) {} }; + + typedef SmallVector<SubConstraintInfo,4> SubConstraintInfoVector; + struct ConstraintInfo; + typedef SmallVector<ConstraintInfo,16> ConstraintInfoVector; struct ConstraintInfo { /// Type - The basic type of the constraint: input/output/clobber @@ -131,14 +137,14 @@ public: /// Code - The constraint code, either the register name (in braces) or the /// constraint letter/number. - std::vector<std::string> Codes; + ConstraintCodeVector Codes; /// isMultipleAlternative - '|': has multiple-alternative constraints. bool isMultipleAlternative; /// multipleAlternatives - If there are multiple alternative constraints, /// this array will contain them. Otherwise it will be empty. - std::vector<SubConstraintInfo> multipleAlternatives; + SubConstraintInfoVector multipleAlternatives; /// The currently selected alternative constraint index. unsigned currentAlternativeIndex; @@ -152,8 +158,7 @@ public: /// Parse - Analyze the specified string (e.g. "=*&{eax}") and fill in the /// fields in this structure. If the constraint string is not understood, /// return true, otherwise return false. - bool Parse(StringRef Str, - std::vector<InlineAsm::ConstraintInfo> &ConstraintsSoFar); + bool Parse(StringRef Str, ConstraintInfoVector &ConstraintsSoFar); /// selectAlternative - Point this constraint to the alternative constraint /// indicated by the index. @@ -163,13 +168,11 @@ public: /// ParseConstraints - Split up the constraint string into the specific /// constraints and their prefixes. If this returns an empty vector, and if /// the constraint string itself isn't empty, there was an error parsing. - static std::vector<ConstraintInfo> - ParseConstraints(StringRef ConstraintString); + static ConstraintInfoVector ParseConstraints(StringRef ConstraintString); /// ParseConstraints - Parse the constraints of this inlineasm object, /// returning them the same way that ParseConstraints(str) does. - std::vector<ConstraintInfo> - ParseConstraints() const { + ConstraintInfoVector ParseConstraints() const { return ParseConstraints(Constraints); } |