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[Patch] [aarch64] Fix asm-subreg-1.c ICE
- From: "Hurugalawadi, Naveen" <Naveen dot Hurugalawadi at caviumnetworks dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Wed, 28 Nov 2012 04:47:08 +0000
- Subject: [Patch] [aarch64] Fix asm-subreg-1.c ICE
Hi,
Please find attached the patch “asm-subreg.patch” for aarch64 which
fixes ICE for /gcc.dg/torture/asm-subreg-1.c testcase.
The error was the result of reload problems in
“aarch64_load_symref_appropriately” function.
The higher part of symbol_ref moved to temporary RTX “tmp_reg” does
not contain the exact value. The dumps showed that (CONST_INT 0) is
moved into the temporary RTX.
When the higher part of symbol_ref was added with the temporary rtx
and moved into the “dest”, it seg faults due to reload issues.
Hence, the transfer of symbol_ref is handled slightly in a modified
manner which fixes the ICE.
Please review the patch and let me know your comments on the same.
Regards,
Naveen