--- Comment #6 from nick dot spence at freescale dot com 2008-05-13 20:41
---
1) Since most bootloaders are written in C your view is very interesting but
probably not shared by everyone else working with embedded software.
2) If the compiler now treats this as an undefined condition i
--- Comment #5 from pinskia at gcc dot gnu dot org 2008-05-13 20:02 ---
>This section of code is used in a bootloader to test DRAM.
You cannot use C for that code because of how C defines pointers.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36232
--- Comment #4 from pinskia at gcc dot gnu dot org 2008-05-13 20:02 ---
a pointer cannot go from a valid pointer to a NULL pointer. See PR 36124.
*** This bug has been marked as a duplicate of 36124 ***
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pinskia at gcc dot gnu dot org changed:
What|Removed
--- Comment #3 from nick dot spence at freescale dot com 2008-05-13 19:56
---
The code has two loops, which compile correctly when no optimization, or
-O1 are used, but the second loop becomes infinite if -Os or -O2 is used.
.file "test.c"
.section.rodata.str1
--- Comment #2 from nick dot spence at freescale dot com 2008-05-13 19:52
---
Created an attachment (id=15637)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15637&action=view)
Compiler intermediate file
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36232
--- Comment #1 from nick dot spence at freescale dot com 2008-05-13 19:51
---
Created an attachment (id=15636)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15636&action=view)
Example code source file
Compile with 'gcc -Os test.c' or 'gcc -O2 test.c' and examine assembly output.
