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| author | H.J. Lu <hjl@gnu.org> | 1998-07-26 00:12:12 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-07-25 18:12:12 -0600 |
| commit | 60aeab7f32837b7512fddbe221b0cac475716a6f (patch) | |
| tree | 9f9c52891b9ee1d5662b269b9f82fd696c53f85c | |
| parent | bc6bd744c5c1afa8f2afce8b56c3ae170ab3b30c (diff) | |
| download | gcc-60aeab7f32837b7512fddbe221b0cac475716a6f.zip gcc-60aeab7f32837b7512fddbe221b0cac475716a6f.tar.gz gcc-60aeab7f32837b7512fddbe221b0cac475716a6f.tar.bz2 | |
i386.c (output_to_reg): Add code to emulate non-popping DImode case.
�
* i386.c (output_to_reg): Add code to emulate non-popping DImode
case.
From-SVN: r21389
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 11 |
2 files changed, 16 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index b9afc60..fd39809 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Sun Jul 26 01:11:12 1998 H.J. Lu (hjl@gnu.org) + + * i386.c (output_to_reg): Add code to emulate non-popping DImode + case. + Sun Jul 26 01:01:32 1998 Jeffrey A Law (law@cygnus.com) * regmove.c (regmove_optimize): Fix typo initializing regmove_bb_head. diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 76f5370..8e5211f 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -891,6 +891,17 @@ output_to_reg (dest, dies, scratch_mem) { if (dies) output_asm_insn (AS1 (fistp%z3,%y0), xops); + else if (GET_MODE (xops[3]) == DImode && ! dies) + { + /* There is no DImode version of this without a stack pop, so + we must emulate it. It doesn't matter much what the second + instruction is, because the value being pushed on the FP stack + is not used except for the following stack popping store. + This case can only happen without optimization, so it doesn't + matter that it is inefficient. */ + output_asm_insn (AS1 (fistp%z3,%0), xops); + output_asm_insn (AS1 (fild%z3,%0), xops); + } else output_asm_insn (AS1 (fist%z3,%y0), xops); } |