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From-SVN: r520
This commit is contained in:
James Van Artsdalen 1992-03-19 06:13:20 +00:00
parent f4ce55dfed
commit 997de79c14
1 changed files with 13 additions and 6 deletions
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19
gcc/config/i386/i386.c
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@ -31,6 +31,13 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "tree.h"
#include "flags.h"
#ifdef EXTRA_CONSTRAINT
/* If EXTRA_CONSTRAINT is defined, then the 'S'
constraint in REG_CLASS_FROM_LETTER will no longer work, and various
asm statements that need 'S' for class SIREG will break. */
#error EXTRA_CONSTRAINT conflicts with S constraint letter
#endif
#define AT_BP(mode) (gen_rtx (MEM, (mode), frame_pointer_rtx))
extern FILE *asm_out_file;
@ -318,7 +325,12 @@ output_move_double (operands)
if (GET_CODE (operands[1]) == CONST_DOUBLE)
split_double (operands[1], &operands[1], &latehalf[1]);
else if (CONSTANT_P (operands[1]))
latehalf[1] = const0_rtx;
{
if (GET_CODE (operands[1]) == CONST_INT && INTVAL (operands[1]) < 0)
latehalf[1] = constm1_rtx;
else
latehalf[1] = const0_rtx;
}
}
else
latehalf[1] = operands[1];
@ -791,11 +803,6 @@ function_epilogue (file, size)
else
output_asm_insn ("ret %1", xops);
}
else if (current_function_returns_struct)
{
xops[0] = gen_rtx (CONST_INT, VOIDmode, 4);
output_asm_insn ("ret %0", xops);
}
else
output_asm_insn ("ret", xops);
}