Fix typos

Author: Wilfred

docs/changelog.md

@@ -152,7 +152,7 @@ Optimisations:
 finish executing loops in order to skip runtime execution. We can now
 partly execute loops at runtime. This is a big help to many programs
 with a large outer loop, previously they did not benefit from compile
-time exeuction.
+time execution.
 
 Compiler performance:
 

docs/faq.md

@@ -69,6 +69,6 @@ Many! Some noteworthy examples I've seen are:
 * https://github.com/stedolan/bf.sed (simple optimisations, but
 compiles directly to asm)
 * https://github.com/matslina/bfoptimization
-* [Platonic Ideal Brainfuck Interpeter](http://catseye.tc/node/pibfi)
+* [Platonic Ideal Brainfuck Interpreter](http://catseye.tc/node/pibfi)
   [(src)](https://github.com/catseye/pibfi) (even has a profiler!)
 * https://github.com/rmmh/beefit (uses LuaJIT)

src/llvm.rs

@@ -528,7 +528,7 @@ unsafe fn compile_multiply_move(
         multiply_body,
     );
 
-    // In the multiply body, do the mulitply
+    // In the multiply body, do the multiply
     builder.position_at_end(multiply_body);
 
     // Zero the current cell.
@@ -730,7 +730,7 @@ unsafe fn compile_loop(
     &mut *loop_after
 }
 
-/// Append LLVM IR instructions to bb acording to the BF instruction
+/// Append LLVM IR instructions to bb according to the BF instruction
 /// passed in.
 unsafe fn compile_instr(
     instr: &AstNode,

src/peephole.rs

@@ -2617,7 +2617,7 @@ mod soundness_tests {
     fn combine_before_read_is_sound() {
         fn is_sound(instrs: Vec<AstNode>, read_value: Option<i8>) -> TestResult {
             // remove_read_clobber can change the value of cells when we
-            // reach a runtime value. Conside `+,` to `,` -- the `,`
+            // reach a runtime value. Consider `+,` to `,` -- the `,`
             // overwrites the cell, but when we reach the runtime value
             // the cells are different.
             transform_is_sound(instrs, remove_read_clobber, false, read_value)