Skip to content

R
riscv-gcc-1
Commit a9ba8a88 by Jeff Law
Options

Revert accidental checkin of the FCOMI patch that I was testing. 

From-SVN: r26486
parent a14003ee
Showing with 59 additions and 105 deletions
gcc/config/i386/i386.c
......@@ -3139,8 +3139,7 @@ put_jump_code (code, reverse, file)
FILE *file;
{
int flags = cc_prev_status.flags;
int ieee = (TARGET_IEEE_FP && (flags & CC_IN_80387)
&& !(cc_prev_status.flags & CC_FCOMI));
int ieee = (TARGET_IEEE_FP && (flags & CC_IN_80387));
const char *suffix;
if (flags & CC_Z_IN_NOT_C)
......@@ -3897,7 +3896,7 @@ notice_update_cc (exp)
if (stack_regs_mentioned_p (SET_SRC (XVECEXP (exp, 0, 0))))
{
cc_status.flags |= CC_IN_80387;
if (TARGET_CMOVE && stack_regs_mentioned_p
if (0 && TARGET_CMOVE && stack_regs_mentioned_p
(XEXP (SET_SRC (XVECEXP (exp, 0, 0)), 1)))
cc_status.flags |= CC_FCOMI;
}
......@@ -4255,7 +4254,7 @@ output_float_compare (insn, operands)
int unordered_compare = GET_MODE (SET_SRC (body)) == CCFPEQmode;
rtx tmp;
if (TARGET_CMOVE && STACK_REG_P (operands[1]))
if (0 && TARGET_CMOVE && STACK_REG_P (operands[1]))
{
cc_status.flags |= CC_FCOMI;
cc_prev_status.flags &= ~CC_TEST_AX;
......@@ -4289,8 +4288,7 @@ output_float_compare (insn, operands)
{
output_asm_insn (AS2 (fucomip,%y1,%0), operands);
output_asm_insn (AS1 (fstp, %y0), operands);
if (!TARGET_IEEE_FP)
return "";
return "";
}
else
output_asm_insn ("fucompp", operands);
......@@ -4326,8 +4324,7 @@ output_float_compare (insn, operands)
if (cc_status.flags & CC_FCOMI)
{
output_asm_insn (strcat (buf, AS2 (%z1,%y1,%0)), operands);
if (!TARGET_IEEE_FP)
return "";
return "";
}
else
output_asm_insn (strcat (buf, AS1 (%z1,%y1)), operands);
......@@ -4351,19 +4348,17 @@ output_fp_cc0_set (insn)
rtx next;
enum rtx_code code;
if (!(cc_status.flags & CC_FCOMI))
{
xops[0] = gen_rtx_REG (HImode, 0);
output_asm_insn (AS1 (fnsts%W0,%0), xops);
}
xops[0] = gen_rtx_REG (HImode, 0);
output_asm_insn (AS1 (fnsts%W0,%0), xops);
if (! TARGET_IEEE_FP)
{
if (!(cc_status.flags & CC_REVERSED))
{
next = next_cc0_user (insn);
if (GET_CODE (PATTERN (next)) == SET
if (GET_CODE (next) == JUMP_INSN
&& GET_CODE (PATTERN (next)) == SET
&& SET_DEST (PATTERN (next)) == pc_rtx
&& GET_CODE (SET_SRC (PATTERN (next))) == IF_THEN_ELSE)
code = GET_CODE (XEXP (SET_SRC (PATTERN (next)), 0));
......@@ -4388,7 +4383,8 @@ output_fp_cc0_set (insn)
if (next == NULL_RTX)
abort ();
if (GET_CODE (PATTERN (next)) == SET
if (GET_CODE (next) == JUMP_INSN
&& GET_CODE (PATTERN (next)) == SET
&& SET_DEST (PATTERN (next)) == pc_rtx
&& GET_CODE (SET_SRC (PATTERN (next))) == IF_THEN_ELSE)
code = GET_CODE (XEXP (SET_SRC (PATTERN (next)), 0));
......@@ -4411,103 +4407,61 @@ output_fp_cc0_set (insn)
else
abort ();
if (cc_status.flags & CC_FCOMI)
{
/* It is very tricky. We have to do it right. */
xops [0] = gen_rtx_REG (QImode, 0);
switch (code)
{
case GT:
case GE:
break;
case LT:
output_asm_insn (AS1 (setb,%b0), xops);
output_asm_insn (AS1 (setp,%h0), xops);
output_asm_insn (AS2 (cmp%B0,%b0,%h0), xops);
break;
xops[0] = gen_rtx_REG (QImode, 0);
case LE:
output_asm_insn (AS1 (setbe,%b0), xops);
output_asm_insn (AS1 (setnp,%h0), xops);
output_asm_insn (AS2 (xor%B0,%b0,%h0), xops);
break;
case EQ:
case NE:
output_asm_insn (AS1 (setne,%b0), xops);
output_asm_insn (AS1 (setp,%h0), xops);
output_asm_insn (AS2 (or%B0,%b0,%h0), xops);
break;
case GTU:
case LTU:
case GEU:
case LEU:
default:
abort ();
}
}
else
switch (code)
{
xops[0] = gen_rtx_REG (QImode, 0);
switch (code)
{
case GT:
xops[1] = GEN_INT (0x45);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
/* je label */
break;
case GT:
xops[1] = GEN_INT (0x45);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
/* je label */
break;
case LT:
xops[1] = GEN_INT (0x45);
xops[2] = GEN_INT (0x01);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS2 (cmp%B0,%2,%h0), xops);
/* je label */
break;
case LT:
xops[1] = GEN_INT (0x45);
xops[2] = GEN_INT (0x01);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS2 (cmp%B0,%2,%h0), xops);
/* je label */
break;
case GE:
xops[1] = GEN_INT (0x05);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
/* je label */
break;
case GE:
xops[1] = GEN_INT (0x05);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
/* je label */
break;
case LE:
xops[1] = GEN_INT (0x45);
xops[2] = GEN_INT (0x40);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS1 (dec%B0,%h0), xops);
output_asm_insn (AS2 (cmp%B0,%2,%h0), xops);
/* jb label */
break;
case LE:
xops[1] = GEN_INT (0x45);
xops[2] = GEN_INT (0x40);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS1 (dec%B0,%h0), xops);
output_asm_insn (AS2 (cmp%B0,%2,%h0), xops);
/* jb label */
break;
case EQ:
xops[1] = GEN_INT (0x45);
xops[2] = GEN_INT (0x40);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS2 (cmp%B0,%2,%h0), xops);
/* je label */
break;
case EQ:
xops[1] = GEN_INT (0x45);
xops[2] = GEN_INT (0x40);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS2 (cmp%B0,%2,%h0), xops);
/* je label */
break;
case NE:
xops[1] = GEN_INT (0x44);
xops[2] = GEN_INT (0x40);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS2 (xor%B0,%2,%h0), xops);
/* jne label */
break;
case NE:
xops[1] = GEN_INT (0x44);
xops[2] = GEN_INT (0x40);
output_asm_insn (AS2 (and%B0,%1,%h0), xops);
output_asm_insn (AS2 (xor%B0,%2,%h0), xops);
/* jne label */
break;
case GTU:
case LTU:
case GEU:
case LEU:
default:
abort ();
}
case GTU:
case LTU:
case GEU:
case LEU:
default:
abort ();
}
return "";
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment