Re: [PATCH], PR target/67211, Fix PowerPC 'insn does not satisfy its constraints' error on GCC 5

2015-08-22 Thread David Edelsohn
On Thu, Aug 20, 2015 at 5:15 PM, Michael Meissner meiss...@linux.vnet.ibm.com wrote: PR 67211 is an error that shows up on the GCC 5.x branch when the test case is compiled with -mcpu=power7 -mtune=power8 -O3. In looking at the code, I noticed that the code optimized adjancent 64-bit

[PATCH], PR target/67211, Fix PowerPC 'insn does not satisfy its constraints' error on GCC 5

2015-08-20 Thread Michael Meissner
PR 67211 is an error that shows up on the GCC 5.x branch when the test case is compiled with -mcpu=power7 -mtune=power8 -O3. In looking at the code, I noticed that the code optimized adjancent 64-bit integer/pointers in a structure from DImode to V2DImode. The compiler optimized these to the