Hi,
We just got a similar problem on Blackfin GCC recently. Let me take the
test code from the bug as an example:
typedef unsigned short u16;
typedef unsigned int u32;
u32 a(volatile u16* off) {
return *off;
}
u32 b(u16* off) {
return *off;
}
compiled with
mingw32-gcc-4.3.0.
On 12/23/2009 02:43 PM, Jie Zhang wrote:
Hi,
We just got a similar problem on Blackfin GCC recently. Let me take the
test code from the bug as an example:
I reduce the test case to a simpler one:
$ cat foo.c
unsigned int
foo (volatile unsigned short *p)
{
return *p;
}
I the tree dump "foo.
Jie Zhang wrote:
> typedef unsigned short u16;
> typedef unsigned int u32;
>
> u32 a(volatile u16* off) {
> return *off;
> }
> mingw32-gcc-4.3.0.exe -c -O2 -fomit-frame-pointer -mtune=core2 test.c
>
> it produces:
> <_a>:
>0: 8b 44 24 04 mov0x4(%esp),%eax
On 12/23/2009 06:12 PM, Dave Korn wrote:
Jie Zhang wrote:
typedef unsigned short u16;
typedef unsigned int u32;
u32 a(volatile u16* off) {
return *off;
}
mingw32-gcc-4.3.0.exe -c -O2 -fomit-frame-pointer -mtune=core2 test.c
it produces:
<_a>:
0: 8b 44 24 04
