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astgen.c: fix forExpr to use nodeIsTriviallyZero for range start check

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Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Motiejus Jakštys
2026-02-16 22:47:52 +00:00
parent cfaa83f991
commit e9fa136c58
2 changed files with 3 additions and 12 deletions
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13
stage0/astgen.c
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@@ -9924,17 +9924,8 @@ static uint32_t forExpr(
lens[i][1] = end_val;
}
// Check if start is trivially zero.
bool start_is_zero = false;
if (tree->nodes.tags[start_node] == AST_NODE_NUMBER_LITERAL) {
uint32_t tok = tree->nodes.main_tokens[start_node];
uint32_t ts = tree->tokens.starts[tok];
if (tree->source[ts] == '0'
&& (ts + 1 >= tree->source_len
|| tree->source[ts + 1] < '0'
|| tree->source[ts + 1] > '9'))
start_is_zero = true;
}
// Check if start is trivially zero (AstGen.zig:6915).
bool start_is_zero = nodeIsTriviallyZero(tree, start_node);
indexables[i] = start_is_zero ? ZIR_REF_NONE : start_val;
} else {
// Regular indexable (AstGen.zig:6918-6923).

2
stage0/stages_test.zig
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@@ -37,7 +37,7 @@ const corpus_files = .{
"../lib/compiler/aro/aro/Builtins/TypeDescription.zig",
"../lib/compiler/aro/aro/Builtins.zig",
"../lib/compiler/aro/aro/char_info/identifier_tables.zig",
//"../lib/compiler/aro/aro/char_info.zig",
"../lib/compiler/aro/aro/char_info.zig",
"../lib/compiler/aro/aro/CodeGen.zig",
"../lib/compiler/aro/aro/Compilation.zig",
"../lib/compiler/aro/aro/Diagnostics/messages.zig",