JPS6418876A - Production system for vector instruction column - Google Patents
Production system for vector instruction columnInfo
- Publication number
- JPS6418876A JPS6418876A JP17660487A JP17660487A JPS6418876A JP S6418876 A JPS6418876 A JP S6418876A JP 17660487 A JP17660487 A JP 17660487A JP 17660487 A JP17660487 A JP 17660487A JP S6418876 A JPS6418876 A JP S6418876A
- Authority
- JP
- Japan
- Prior art keywords
- vector
- columns
- instruction
- vector instruction
- unknown
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Complex Calculations (AREA)
- Devices For Executing Special Programs (AREA)
Abstract
PURPOSE:To shorten the executing time in a production system for vector instruction columns by transforming an object program into a vector so that a compiler produces plural vector instruction columns in response to respective cases of values available with a variable and these instruction columns are selectively carried out at the time of execution. CONSTITUTION:An unknown variable detecting means 3 analyzes a source program 1 and detects an unknown variable with which the value available at the compiling time point is unknown out of those variables contained in an added character formula for vector elements. Then a vectorization deciding means 4 assumes the value available with said unknown variable and therefore decides whether a vector element can be vectorized to a vector or not. A vector instruction column production means 5 allocates the value available with the unknown variable to each assumed case and produces plural vector instruction columns when the possibility is decided for vectorization. Then a branch instruction group production means 6 produces a branch instruction group for selection of plural vector instruction columns at the time of execution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17660487A JPS6418876A (en) | 1987-07-14 | 1987-07-14 | Production system for vector instruction column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17660487A JPS6418876A (en) | 1987-07-14 | 1987-07-14 | Production system for vector instruction column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6418876A true JPS6418876A (en) | 1989-01-23 |
Family
ID=16016471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17660487A Pending JPS6418876A (en) | 1987-07-14 | 1987-07-14 | Production system for vector instruction column |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6418876A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04332044A (en) * | 1991-05-07 | 1992-11-19 | Nec Corp | Vectorization processing system for compiler |
| JPH08314897A (en) * | 1995-05-23 | 1996-11-29 | Nec Software Ltd | Vectorizing processing system of partial array by three pairs of subscripts |
| JP2009211458A (en) * | 2008-03-05 | 2009-09-17 | Nec Corp | Compiler, variable-optimizing device, method, and program |
-
1987
- 1987-07-14 JP JP17660487A patent/JPS6418876A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04332044A (en) * | 1991-05-07 | 1992-11-19 | Nec Corp | Vectorization processing system for compiler |
| JPH08314897A (en) * | 1995-05-23 | 1996-11-29 | Nec Software Ltd | Vectorizing processing system of partial array by three pairs of subscripts |
| JP2009211458A (en) * | 2008-03-05 | 2009-09-17 | Nec Corp | Compiler, variable-optimizing device, method, and program |
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