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Solve some bug reports

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The savannah web site had some new bug report last december.
A lot of them are assemmbly bugs.
See testcase 60 for an overview.
This commit is contained in:
herman ten brugge
2026-01-06 07:49:02 +01:00
parent 9a7edb20d3
commit 8a8388c6ff
13 changed files with 191 additions and 17 deletions
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8
i386-gen.c
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@@ -126,8 +126,11 @@ ST_FUNC void g(int c)
if (nocode_wanted)
return;
ind1 = ind + 1;
if (ind1 > cur_text_section->data_allocated)
if ((unsigned)ind1 > cur_text_section->data_allocated) {
if (ind1 < 0)
tcc_error("program too big");
section_realloc(cur_text_section, ind1);
}
cur_text_section->data[ind] = c;
ind = ind1;
}
@@ -363,7 +366,8 @@ ST_FUNC void load(int r, SValue *sv)
r = 5;
} else if ((ft & VT_TYPE) == VT_BYTE || (ft & VT_TYPE) == VT_BOOL) {
opc = 0xbe0f; /* movsbl */
} else if ((ft & VT_TYPE) == (VT_BYTE | VT_UNSIGNED)) {
} else if ((ft & VT_TYPE) == (VT_BYTE | VT_UNSIGNED) ||
(ft & VT_TYPE) == (VT_BOOL | VT_UNSIGNED)) {
opc = 0xb60f; /* movzbl */
} else if ((ft & VT_TYPE) == VT_SHORT) {
opc = 0xbf0f; /* movswl */