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Apparently this patch fixes the objc backend on the i386 platforms.

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Without this, compiled programs die with FP errors.

This is originally credited to: jlemon@netcom.com (Jonathan Lemon), and
has been forwarded to me by quite a few of people.
This commit is contained in:
Peter Wemm 1996-10-26 17:00:50 +00:00
parent 0adcbd83f1
commit 2c80f2dbdb
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=19194
1 changed files with 7 additions and 0 deletions
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7
contrib/gcc/config/i386/i386.md
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@ -5312,10 +5312,17 @@
coprocessor registers as containing a possible return value,
simply pretend the untyped call returns a complex long double
value. */
#if 1
/* this may be part of (set (reg: ..) (call_insn ...)), and we can't
directly set a fp register from the call. so we revert to the
old behavior - jlemon@netcom.com (Jonathan Lemon) */
emit_call_insn (gen_call (operands[0], const0_rtx, NULL, const0_rtx));
#else
emit_call_insn (TARGET_80387
? gen_call_value (gen_rtx (REG, XCmode, FIRST_FLOAT_REG),
operands[0], const0_rtx)
: gen_call (operands[0], const0_rtx));
#endif
for (i = 0; i < XVECLEN (operands[2], 0); i++)
{