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| author | Doug Evans <dje@gnu.org> | 1996-02-09 22:25:39 +0000 |
|---|---|---|
| committer | Doug Evans <dje@gnu.org> | 1996-02-09 22:25:39 +0000 |
| commit | 258ae59d66b7d11bffebd6917492030f8fbca189 (patch) | |
| tree | 2d4e3403e543c3cea765486211660344e0ae4fe4 /gcc | |
| parent | 95726648efb29340078bdea2a882341c867434ba (diff) | |
| download | gcc-258ae59d66b7d11bffebd6917492030f8fbca189.zip gcc-258ae59d66b7d11bffebd6917492030f8fbca189.tar.gz gcc-258ae59d66b7d11bffebd6917492030f8fbca189.tar.bz2 | |
Move pic sethi ahead of non-pic sethi and document why.
From-SVN: r11186
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/sparc/sparc.md | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/gcc/config/sparc/sparc.md b/gcc/config/sparc/sparc.md index d454a6f..5f41d95 100644 --- a/gcc/config/sparc/sparc.md +++ b/gcc/config/sparc/sparc.md @@ -1467,22 +1467,6 @@ ;; is not an "arith_operand". [(set_attr "length" "1")]) -(define_insn "*sethi_si" - [(set (match_operand:SI 0 "register_operand" "=r") - (high:SI (match_operand 1 "" "")))] - "check_pic (1)" - "sethi %%hi(%a1),%0" - [(set_attr "type" "move") - (set_attr "length" "1")]) - -(define_insn "*sethi_hi" - [(set (match_operand:HI 0 "register_operand" "=r") - (high:HI (match_operand 1 "" "")))] - "check_pic (1)" - "sethi %%hi(%a1),%0" - [(set_attr "type" "move") - (set_attr "length" "1")]) - ;; For PIC, symbol_refs are put inside unspec so that the optimizer will not ;; confuse them with real addresses. (define_insn "pic_lo_sum_si" @@ -1497,6 +1481,8 @@ ;; is not an "arith_operand". [(set_attr "length" "1")]) +;; The PIC version of sethi must appear before the non-pic case so that +;; the unspec will not be matched as part of the operand. ;; For PIC, symbol_refs are put inside unspec so that the optimizer will not ;; confuse them with real addresses. (define_insn "pic_sethi_si" @@ -1507,6 +1493,22 @@ [(set_attr "type" "move") (set_attr "length" "1")]) +(define_insn "*sethi_si" + [(set (match_operand:SI 0 "register_operand" "=r") + (high:SI (match_operand 1 "" "")))] + "check_pic (1)" + "sethi %%hi(%a1),%0" + [(set_attr "type" "move") + (set_attr "length" "1")]) + +(define_insn "*sethi_hi" + [(set (match_operand:HI 0 "register_operand" "=r") + (high:HI (match_operand 1 "" "")))] + "check_pic (1)" + "sethi %%hi(%a1),%0" + [(set_attr "type" "move") + (set_attr "length" "1")]) + (define_insn "get_pc_sp32" [(set (pc) (label_ref (match_operand 0 "" ""))) (set (reg:SI 15) (label_ref (match_dup 0)))] |