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| author | Jukka Ojanen <jukka.ojanen@linkotec.net> | 2014-11-10 17:07:31 +0200 |
|---|---|---|
| committer | Jukka Ojanen <jukka.ojanen@linkotec.net> | 2014-11-10 17:07:31 +0200 |
| commit | 20766e39cbc37bd5fabe1a144a270a99541955b2 (patch) | |
| tree | ef7f0c17a11c2c39c833f19dbce4f950df027682 /src/codegen.c | |
| parent | 0343c47c36b9cb0e1ea9c0bad14723d4872dccbc (diff) | |
| download | ffts-20766e39cbc37bd5fabe1a144a270a99541955b2.zip ffts-20766e39cbc37bd5fabe1a144a270a99541955b2.tar.gz | |
Replace movdqa with movaps which is one byte shorter. Don't need RDI register as R9 is saved by caller.
Diffstat (limited to 'src/codegen.c')
| -rw-r--r-- | src/codegen.c | 31 |
1 files changed, 11 insertions, 20 deletions
diff --git a/src/codegen.c b/src/codegen.c index efa8e9a..6c6c887 100644 --- a/src/codegen.c +++ b/src/codegen.c @@ -150,19 +150,7 @@ transform_func_t ffts_generate_func_code(ffts_plan_t *p, size_t N, size_t leaf_N #ifdef __arm__ start = generate_prologue(&fp, p); -#else - start = generate_prologue(&fp, p); - - /* assign loop counter register */ - loop_count = 4 * p->i0; -#ifdef _M_X64 - x86_mov_reg_imm(fp, X86_EBX, loop_count); -#else - x86_mov_reg_imm(fp, X86_ECX, loop_count); -#endif -#endif -#ifdef __arm__ #ifdef HAVE_NEON memcpy(fp, neon_ee, neon_oo - neon_ee); if (sign < 0) { @@ -201,24 +189,27 @@ transform_func_t ffts_generate_func_code(ffts_plan_t *p, size_t N, size_t leaf_N fp += (vfp_o - vfp_e) / 4; #endif #else - //fprintf(stderr, "Body start address = %016p\n", start); + /* generate function */ + start = generate_prologue(&fp, p); + loop_count = 4 * p->i0; #ifdef _M_X64 - /* generate function */ + /* set loop counter */ + x86_mov_reg_imm(fp, X86_EBX, loop_count); /* clear */ x86_clear_reg(fp, X86_EAX); /* set "pointer" to offsets */ - x64_mov_reg_membase(fp, X64_RDI, X64_RCX, 0x0, 8); + x64_mov_reg_membase(fp, X64_R9, X64_RCX, 0x0, 8); /* set "pointer" to constants */ x64_mov_reg_membase(fp, X64_RSI, X64_RCX, 0xE0, 8); - - /* align loop/jump destination */ - ffts_align_mem16(&fp, 8); #else - /* copy function */ + /* set loop counter */ + x86_mov_reg_imm(fp, X86_ECX, loop_count); + + /* copy function */ assert((char*) leaf_ee > (char*) leaf_ee_init); len = (char*) leaf_ee - (char*) leaf_ee_init; memcpy(fp, leaf_ee_init, (size_t) len); @@ -390,7 +381,7 @@ transform_func_t ffts_generate_func_code(ffts_plan_t *p, size_t N, size_t leaf_N int offset = (int) (ws_is - pLUT); #ifdef _M_X64 - x64_alu_reg_imm_size(fp, X86_ADD, X64_RDI, offset, 8); + x64_alu_reg_imm_size(fp, X86_ADD, X64_R9, offset, 8); #else x64_alu_reg_imm_size(fp, X86_ADD, X64_R8, offset, 8); #endif |
