GCC Bugzilla – Attachment 30640 Details for
Bug 58145
[Regression]: volatileness of write is discarded, perhaps in "lim1" related to loop optimizations
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Preprocessed code; compile at -O2, e.g. "cc1 -O2 y.i -o y.s"
y.i (text/plain), 378 bytes, created by
Hans-Peter Nilsson
on 2013-08-13 02:38:33 UTC
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Description:
Preprocessed code; compile at -O2, e.g. "cc1 -O2 y.i -o y.s"
Filename:
MIME Type:
Creator:
Hans-Peter Nilsson
Created:
2013-08-13 02:38:33 UTC
Size:
378 bytes
patch
obsolete
># 1 "x.c" > >typedef struct { > unsigned int data : 32; >} reg_gio_rw_pb_dout; > >enum { regi_gio = 0x0009a000 }; > >static void pb_out (int val) >{ > reg_gio_rw_pb_dout r = {.data = val}; > *((volatile reg_gio_rw_pb_dout *) ((regi_gio) + 4)) = ((r)); >} > >int main(void) >{ > int a, b; > > for (a = 0; a < 32; a++) { > b = 1 << a; > pb_out(b); > } > > sim_end(); > > return 0; > >}
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bug 58145
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