Compiler Design and Construction208010 marksNumerical: LL(1) parsing tableTop-down parsing
Differentiate between one-pass and multi-pass compiler. Construct the LL(1) parsing table for the following grammar.S→ABCDS \rightarrow ABCDS→ABCDA→a∣εA \rightarrow a | \varepsilonA→a∣εB→bB \rightarrow bB→bC→0∣εC \rightarrow 0 | \varepsilonC→0∣εD→d∣εD \rightarrow d | \varepsilonD→d∣ε
Differentiate between one-pass and multi-pass compiler. Construct the LL(1) parsing table for the following grammar.S→ABCDS \rightarrow ABCDS→ABCDA→a∣εA \rightarrow a | \varepsilonA→a∣εB→bB \rightarrow bB→bC→0∣εC \rightarrow 0 | \varepsilonC→0∣εD→d∣εD \rightarrow d | \varepsilonD→d∣ε[10]
Feature One-Pass Compiler Multi-Pass Compiler --------- Number of scans Scans source exactly once Scans source/intermediate form multiple times Speed Faster compilation Slower (multiple traversals) Memory usage Requires less memory Requires more memory (intermediate results stored) Optimization L...