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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-11-18 19:16:06 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-11-18 19:16:06 -0500 |
| commit | 4c70a4f326ab0cf1bffe0464fa655fc78c2d8a1d (patch) | |
| tree | 0f9c6b4fe07f46d8148b87f9a88a12dc42b264ad /gcc | |
| parent | 35068b435fb8c09fff2cbc4eb8a3e1dd904aae0e (diff) | |
| download | gcc-4c70a4f326ab0cf1bffe0464fa655fc78c2d8a1d.zip gcc-4c70a4f326ab0cf1bffe0464fa655fc78c2d8a1d.tar.gz gcc-4c70a4f326ab0cf1bffe0464fa655fc78c2d8a1d.tar.bz2 | |
(peepholes for two DF load/store): New peepholes.
From-SVN: r8517
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/rs6000/rs6000.md | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index a11f756..e6c2e71 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -4436,6 +4436,30 @@ "@ stfdux %3,%0,%2 stfdu %3,%2(%0)") + +;; Peephole to convert two consecutive FP loads or stores into lfq/stfq. + +(define_peephole + [(set (match_operand:DF 0 "gpc_reg_operand" "=f") + (match_operand:DF 1 "memory_operand" "")) + (set (match_operand:DF 2 "gpc_reg_operand" "=f") + (match_operand:DF 3 "memory_operand" ""))] + "TARGET_POWER2 + && registers_ok_for_quad_peep (operands[0], operands[2]) + && ! MEM_VOLATILE_P (operands[1]) && ! MEM_VOLATILE_P (operands[3]) + && addrs_ok_for_quad_peep (XEXP (operands[1], 0), XEXP (operands[3], 0))" + "lfq%U1%X1 %0,%1") + +(define_peephole + [(set (match_operand:DF 0 "memory_operand" "") + (match_operand:DF 1 "gpc_reg_operand" "f")) + (set (match_operand:DF 2 "memory_operand" "") + (match_operand:DF 3 "gpc_reg_operand" "f"))] + "TARGET_POWER2 + && registers_ok_for_quad_peep (operands[1], operands[3]) + && ! MEM_VOLATILE_P (operands[0]) && ! MEM_VOLATILE_P (operands[2]) + && addrs_ok_for_quad_peep (XEXP (operands[0], 0), XEXP (operands[2], 0))" + "stfq%U0%X0 %1,%0") ;; Next come insns related to the calling sequence. ;; |