mirror of
https://github.com/cc65/cc65.git
synced 2024-12-24 11:31:31 +00:00
81550ca1ee
Partial fix for ICE in #1211. This may fix enough to allow #1049 to be fixed. When merging labels, keep the first label with a ref that has no JumpTo; this is a data segment label, used by computed gotos. The real fix is to track and rewrite labels in data, but this is more involved.
54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/*
|
|
Copyright 2020 The cc65 Authors
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
|
|
/*
|
|
Test of indirect goto with label merge ICE.
|
|
https://github.com/cc65/cc65/issues/1211
|
|
This test case works because CS_MergeLabels has a hack to keep the "unreferenced" label
|
|
(i.e. the one referenced in a data segment).
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
/* When operating correctly, f(0) = 31 and f(1) = 41. */
|
|
int f (int x)
|
|
{
|
|
static const void *const labels[] = {&&L0, &&L1};
|
|
goto *labels[x];
|
|
L0: if (labels[0] != labels[1]) return 31;
|
|
else return 13;
|
|
L1: return 41;
|
|
}
|
|
|
|
static unsigned char failures = 0;
|
|
|
|
int main (void)
|
|
{
|
|
if (f (0) != 31) failures++;
|
|
|
|
if (failures == 0) {
|
|
printf ("PASS\n");
|
|
} else {
|
|
printf ("FAIL\n");
|
|
}
|
|
|
|
return failures;
|
|
}
|