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| author | Richard Kenner <kenner@gcc.gnu.org> | 1992-03-03 18:36:58 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1992-03-03 18:36:58 -0500 |
| commit | d38cfc1e108696c2c26040c2147ca49be338bed1 (patch) | |
| tree | 83f98795f1cd1a3fc322d727889dd2b74a4decbf /gcc | |
| parent | bbf6f052d786c206b8d5f802650fa52b7a8583f7 (diff) | |
| download | gcc-d38cfc1e108696c2c26040c2147ca49be338bed1.zip gcc-d38cfc1e108696c2c26040c2147ca49be338bed1.tar.gz gcc-d38cfc1e108696c2c26040c2147ca49be338bed1.tar.bz2 | |
*** empty log message ***
From-SVN: r387
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/vax/vax.h | 10 | ||||
| -rw-r--r-- | gcc/config/vax/vax.md | 9 |
2 files changed, 15 insertions, 4 deletions
diff --git a/gcc/config/vax/vax.h b/gcc/config/vax/vax.h index a26f286..9b8cf5c 100644 --- a/gcc/config/vax/vax.h +++ b/gcc/config/vax/vax.h @@ -283,6 +283,16 @@ enum reg_class { NO_REGS, ALL_REGS, LIM_REG_CLASSES }; || (VALUE) == CONST0_RTX (SFmode)) \ : 0) +/* Optional extra constraints for this machine. + + For the VAX, `Q' means that OP is a MEM that does not have a mode-dependent + address. */ + +#define EXTRA_CONSTRAINT(OP, C) \ + ((C) == 'Q' \ + ? GET_CODE (OP) == MEM && ! mode_dependent_address_p (XEXP (OP, 0)) \ + : 0) + /* Given an rtx X being reloaded into a reg required to be in class CLASS, return the class of reg to actually use. In general this is just CLASS; but on some machines diff --git a/gcc/config/vax/vax.md b/gcc/config/vax/vax.md index be1b3b0..e17c8ca 100644 --- a/gcc/config/vax/vax.md +++ b/gcc/config/vax/vax.md @@ -1465,13 +1465,14 @@ "j%C0 %l1") ; %C0 negates condition ;; Recognize jbs, jlbs, jbc and jlbc instructions. Note that the operand -;; if this insn is SImode in the hardware. However, if it is memory, -;; we use QImode. So we can't allow the memory address to be indexed. +;; of jlbs and jlbc insns are SImode in the hardware. However, if it is +;; memory, we use QImode in the insn. So we can't use those instructions +;; for mode-dependent addresses. (define_insn "" [(set (pc) (if_then_else - (ne (zero_extract:SI (match_operand:QI 0 "reg_or_nxmem_operand" "g,g") + (ne (zero_extract:SI (match_operand:QI 0 "nonimmediate_operand" "rQ,g") (const_int 1) (match_operand:SI 1 "general_operand" "I,g")) (const_int 0)) @@ -1485,7 +1486,7 @@ (define_insn "" [(set (pc) (if_then_else - (eq (zero_extract:SI (match_operand:QI 0 "reg_or_nxmem_operand" "g,g") + (eq (zero_extract:SI (match_operand:QI 0 "nonimmediate_operand" "rQ,g") (const_int 1) (match_operand:SI 1 "general_operand" "I,g")) (const_int 0)) |