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Make peek() tail recursive instead of using goto

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Compilation is identical with `gcc` or `clang`, -O3` or `-O2`
This commit is contained in:
Rangi
2021-08-17 18:43:25 -04:00
committed by Eldred Habert
parent 0f321bc797
commit 4a73eb56ea
1 changed files with 3 additions and 6 deletions
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9
src/asm/lexer.c
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@@ -900,10 +900,7 @@ static char const *readInterpolation(size_t depth);
static int peek(void) static int peek(void)
{ {
int c; int c = peekInternal(0);
restart:
c = peekInternal(0);
if (lexerState->macroArgScanDistance > 0) if (lexerState->macroArgScanDistance > 0)
return c; return c;
@@ -924,7 +921,7 @@ restart:
* expanded, so skip it and keep peeking. * expanded, so skip it and keep peeking.
*/ */
if (!str || !str[0]) if (!str || !str[0])
goto restart; return peek();
beginExpansion(str, c == '#', NULL); beginExpansion(str, c == '#', NULL);
@@ -945,7 +942,7 @@ restart:
if (str && str[0]) if (str && str[0])
beginExpansion(str, false, str); beginExpansion(str, false, str);
goto restart; return peek();
} }
return c; return c;