URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc2/] [gcc/] [testsuite/] [g++.dg/] [tree-ssa/] [pr20963.C] - Diff between revs 301 and 384

Rev 301	Rev 384
`/* { dg-do compile } */`	`/* { dg-do compile } */`
`/* { dg-options "-O2" } */`	`/* { dg-options "-O2" } */`

`/* This was causing PRE to insert the value of the ADDR variable, to`	`/* This was causing PRE to insert the value of the ADDR variable, to`
`remove the invariant cast but in doing so, it was creating a`	`remove the invariant cast but in doing so, it was creating a`
`non-invariant expression out of the invariant one, causing a later`	`non-invariant expression out of the invariant one, causing a later`
`failure in PRE. */`	`failure in PRE. */`
`struct sMCB {`	`struct sMCB {`
`unsigned char type;`	`unsigned char type;`
`};`	`};`

`extern void foo (void);`	`extern void foo (void);`
`unsigned char mem_readb(char *pt) __attribute__((nothrow));`	`unsigned char mem_readb(char *pt) __attribute__((nothrow));`

`void DOS_FreeProcessMemory(unsigned short pspseg) {`	`void DOS_FreeProcessMemory(unsigned short pspseg) {`
`while (1) {`	`while (1) {`
`if (pspseg)`	`if (pspseg)`
`foo ();`	`foo ();`
`char addr = (char)(&((sMCB*)0)->type);`	`char addr = (char)(&((sMCB*)0)->type);`
`if (mem_readb(addr)==0x5a) break;`	`if (mem_readb(addr)==0x5a) break;`
`}`	`}`
`};`	`};`