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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-12-10 16:57:40 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-12-10 16:57:40 -0500 |
| commit | f723f6ef7b01c433f92430d1626aa7b56d34c3eb (patch) | |
| tree | f2cfb20b4111ff969a2c14c884817f17ff83c74a /gcc | |
| parent | 4ab3cb6597c6a02d6795975c3abf8f1d4012a8ce (diff) | |
| download | gcc-f723f6ef7b01c433f92430d1626aa7b56d34c3eb.zip gcc-f723f6ef7b01c433f92430d1626aa7b56d34c3eb.tar.gz gcc-f723f6ef7b01c433f92430d1626aa7b56d34c3eb.tar.bz2 | |
(cmpsi): Make this into a define_expand; legitimize PIC addresses if necessary.
(cmpsi): Make this into a define_expand; legitimize PIC addresses if
necessary.
Old cmpsi code now unnamed define_insn pattern.
From-SVN: r8642
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/m68k/m68k.md | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/gcc/config/m68k/m68k.md b/gcc/config/m68k/m68k.md index cfb5704..f71e9ed 100644 --- a/gcc/config/m68k/m68k.md +++ b/gcc/config/m68k/m68k.md @@ -377,8 +377,29 @@ ;; compare instructions. +;; This is the second "hook" for PIC code (in addition to movsi). See +;; comment of movsi for a description of PIC handling. +(define_expand "cmpsi" + [(set (cc0) + (compare (match_operand:SI 0 "nonimmediate_operand" "") + (match_operand:SI 1 "general_operand" "")))] + "" + " +{ + if (flag_pic && symbolic_operand (operands[1], SImode)) + { + /* The source is an address which requires PIC relocation. + Call legitimize_pic_address with the source, mode, and a relocation + register (a new pseudo, or the final destination if reload_in_progress + is set). Then fall through normally */ + extern rtx legitimize_pic_address(); + rtx temp = reload_in_progress ? operands[0] : gen_reg_rtx (Pmode); + operands[1] = legitimize_pic_address (operands[1], SImode, temp); + } +}") + ;; A composite of the cmp, cmpa, & cmpi m68000 op codes. -(define_insn "cmpsi" +(define_insn "" [(set (cc0) (compare (match_operand:SI 0 "nonimmediate_operand" "rKs,mr,>") (match_operand:SI 1 "general_operand" "mr,Ksr,>")))] |