[GCC-11][committed] pru: Fix CLZ expansion for QI and HI modes

2023-01-26 Thread Dimitar Dimitrov
The recent gcc.dg/tree-ssa/clz-char.c test case failed for PRU target, exposing a wrong code generation bug in the PRU backend. The "clz" pattern did not produce correct output for QI and HI input operand modes. SI mode is ok. The "clz" pattern is expanded to an LMBD instruction to get the left-

[GCC-12][committed] pru: Fix CLZ expansion for QI and HI modes

2023-01-26 Thread Dimitar Dimitrov
The recent gcc.dg/tree-ssa/clz-char.c test case failed for PRU target, exposing a wrong code generation bug in the PRU backend. The "clz" pattern did not produce correct output for QI and HI input operand modes. SI mode is ok. The "clz" pattern is expanded to an LMBD instruction to get the left-

Re: [committed] pru: Fix CLZ expansion for QI and HI modes

2023-01-24 Thread Richard Sandiford via Gcc-patches
Dimitar Dimitrov writes: > The recent gcc.dg/tree-ssa/clz-char.c test case failed for PRU target, > exposing a wrong code generation bug in the PRU backend. The "clz" > pattern did not produce correct output for QI and HI input operand > modes. SI mode is ok. > > The "clz" pattern is expanded to

[committed] pru: Fix CLZ expansion for QI and HI modes

2023-01-22 Thread Dimitar Dimitrov
The recent gcc.dg/tree-ssa/clz-char.c test case failed for PRU target, exposing a wrong code generation bug in the PRU backend. The "clz" pattern did not produce correct output for QI and HI input operand modes. SI mode is ok. The "clz" pattern is expanded to an LMBD instruction to get the left-