diff options
Diffstat (limited to 'gcc/config/i386/i386.c')
| -rw-r--r-- | gcc/config/i386/i386.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 49ab50e..c712c03 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -13557,6 +13557,11 @@ ix86_i387_mode_needed (int entity, rtx_insn *insn) switch (entity) { + case I387_ROUNDEVEN: + if (mode == I387_CW_ROUNDEVEN) + return mode; + break; + case I387_TRUNC: if (mode == I387_CW_TRUNC) return mode; @@ -13591,6 +13596,7 @@ ix86_mode_needed (int entity, rtx_insn *insn) return ix86_dirflag_mode_needed (insn); case AVX_U128: return ix86_avx_u128_mode_needed (insn); + case I387_ROUNDEVEN: case I387_TRUNC: case I387_FLOOR: case I387_CEIL: @@ -13651,6 +13657,7 @@ ix86_mode_after (int entity, int mode, rtx_insn *insn) return mode; case AVX_U128: return ix86_avx_u128_mode_after (mode, insn); + case I387_ROUNDEVEN: case I387_TRUNC: case I387_FLOOR: case I387_CEIL: @@ -13703,6 +13710,7 @@ ix86_mode_entry (int entity) return ix86_dirflag_mode_entry (); case AVX_U128: return ix86_avx_u128_mode_entry (); + case I387_ROUNDEVEN: case I387_TRUNC: case I387_FLOOR: case I387_CEIL: @@ -13740,6 +13748,7 @@ ix86_mode_exit (int entity) return X86_DIRFLAG_ANY; case AVX_U128: return ix86_avx_u128_mode_exit (); + case I387_ROUNDEVEN: case I387_TRUNC: case I387_FLOOR: case I387_CEIL: @@ -13774,6 +13783,12 @@ emit_i387_cw_initialization (int mode) switch (mode) { + case I387_CW_ROUNDEVEN: + /* round to nearest */ + emit_insn (gen_andhi3 (reg, reg, GEN_INT (0x0c00))); + slot = SLOT_CW_ROUNDEVEN; + break; + case I387_CW_TRUNC: /* round toward zero (truncate) */ emit_insn (gen_iorhi3 (reg, reg, GEN_INT (0x0c00))); @@ -13820,6 +13835,7 @@ ix86_emit_mode_set (int entity, int mode, int prev_mode ATTRIBUTE_UNUSED, if (mode == AVX_U128_CLEAN) emit_insn (gen_avx_vzeroupper ()); break; + case I387_ROUNDEVEN: case I387_TRUNC: case I387_FLOOR: case I387_CEIL: |