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Kuan-Lin Chen authored
According to spec, fmv.h checks if the input operands are correctly NaN-boxed. If not, the input value is treated as an n-bit canonical NaN. This patch fixs the issue that operands returned by soft-fp16 libgcc (i.e., __truncdfhf2) was not correctly NaN-boxed. gcc/ChangeLog: * config/riscv/riscv.cc (riscv_legitimize_move): Expand movfh with Nan-boxing value. * config/riscv/riscv.md (*movhf_softfloat_unspec): New pattern. gcc/testsuite/ChangeLog: * gcc.target/riscv/_Float16-nanboxing.c: New test. Co-authored-by:
Patrick Lin <patrick@andestech.com> Co-authored-by:
Rufus Chen <rufus@andestech.com> Co-authored-by:
Monk Chiang <monk.chiang@sifive.com>
Kuan-Lin Chen authoredAccording to spec, fmv.h checks if the input operands are correctly NaN-boxed. If not, the input value is treated as an n-bit canonical NaN. This patch fixs the issue that operands returned by soft-fp16 libgcc (i.e., __truncdfhf2) was not correctly NaN-boxed. gcc/ChangeLog: * config/riscv/riscv.cc (riscv_legitimize_move): Expand movfh with Nan-boxing value. * config/riscv/riscv.md (*movhf_softfloat_unspec): New pattern. gcc/testsuite/ChangeLog: * gcc.target/riscv/_Float16-nanboxing.c: New test. Co-authored-by:
