Re: [Qemu-devel] [PATCH] tcg: Limit the number of ops in a TB

2018-05-08 Thread Philippe Mathieu-Daudé
On 05/08/2018 04:36 PM, Richard Henderson wrote: > In 6001f7729e12 we partially attempt to address the branch > displacement overflow caused by 15fa08f845. > > However, gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqtbX.c > is a testcase that contains a TB so large as to overflow anyway. >

Re: [Qemu-devel] [PATCH] tcg: Limit the number of ops in a TB

2018-05-08 Thread Laurent Vivier
Le 08/05/2018 à 21:36, Richard Henderson a écrit : > In 6001f7729e12 we partially attempt to address the branch > displacement overflow caused by 15fa08f845. > > However, gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqtbX.c > is a testcase that contains a TB so large as to overflow anyway.

[Qemu-devel] [PATCH] tcg: Limit the number of ops in a TB

2018-05-08 Thread Richard Henderson
In 6001f7729e12 we partially attempt to address the branch displacement overflow caused by 15fa08f845. However, gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vqtbX.c is a testcase that contains a TB so large as to overflow anyway. The limit here of 8000 ops produces a maximum output TB size