Yet another GCC oddity
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Yet another GCC oddity
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Re: Yet another GCC oddity
#2I wrote all 138,000 lines from scratch, over 9 years.
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My compiler generates an intermediate language -- an array of stack operations that eventually gets converted to machine code.
------ input file ----
f=i*5;
----------------------
Parsed:
PUSH address off RBP of f
PUSH address off RBP of i
POP and dereference i, push result.
PUSH immediate 5
POP and MUL Top TWO
POP Top Two, put result in dereferenced second from top
Keep top-of-stack in RAX
Assign REG variables to frequent offsets off RBP
merge little instructions into bigger ones
Convert to machine codeRe: Yet another GCC oddity
#3(from 2006, so not sure what it's doing here, but anyway..)
This "oddity" is how every C compiler and linker behaves (that I've used) You need it behave this way to have some control over what gets linked in the face of multiple definitions.