System and method for detecting an erroneous data hazard between instructions of an instruction group and resulting from a compiler grouping error

A superscalar processing system for processing instructions of computer programs and for detecting hazards within said computer programs, comprising:

• means for identifying an instruction group based on instruction group data defined by a compiler, said instruction group including a plurality of instructions;
• means for defining an issue group based on said plurality of instructions and said instruction group data;
• means for storing register identifiers associated with each of said plurality of instructions into memory;
• means for detecting an erroneous data hazard between instructions of said instruction group based on whether one of said register identifiers associated with one of said plurality of instructions is stored in said memory;
• and
• means for transmitting a warning signal in response to a detection of said erroneous data hazard by said detecting means, said warning signal indicating that said compiler has erroneously grouped said plurality of instructions such that a data hazard erroneously exists between said instructions of said instruction group.

A superscalar processing method for processing instructions of computer programs and for detecting hazards within said computer programs, comprising the steps of:

• identifying an instruction group based on instruction group data defined by a compiler, said instruction group including a plurality of instructions;
• defining an issue group based on said plurality of instructions and said instruction group data;
• storing register identifiers associated with each of said plurality of instructions into memory;
• detecting an erroneous data hazard between instructions of said instruction group based on whether one of said register identifiers associated with one of said plurality of instructions is stored in said memory;
• and
• transmitting a warning signal in response to a detection of said erroneous data hazard, said warning signal indicating detection of a compiling error that results in a data hazard erroneously existing between said instructions of said instruction group.

A superscalar method for processing instructions of computer programs, comprising the steps of:

• detecting data hazards between a plurality of instructions;
• grouping a plurality of instructions into different instruction groups based on said detecting step, each instruction group including different ones of said instructions;
• defining an issue group based on said plurality of instructions and said instruction group data;
• storing, into memory, register identifiers associated with said instructions;
• determining whether a register identifier associated with an instruction of one of said instruction groups is stored in said memory;
• detecting, based on said determining step, a compiling error that results in a data hazard erroneously existing between instructions of a single one of said instruction groups;
• and
• transmitting a warning signal based on said detecting step.

A system for processing instructions of computer programs, comprising:

• memory;
• a plurality of pipelines;
• an instruction dispersal unit (IDU) configured to receive a plurality of instructions and instruction group data defined by a compiler, said instruction group data grouping said instructions into different instruction groups, said IDU configured to define issue groups based on the instruction group data;
• and
• a control mechanism configured to store, in said memory, register identifiers associated with instructions from one of said instruction groups, said control mechanism configured to perform at least one comparison between a register identifier of one of said instructions associated with said one instruction group and at least one of said stored register identifiers, said control mechanism further configured to detect, based on said at least one comparison, a compiling error that results in a data hazard erroneously existing between instructions of said one instruction group.