diff options
Diffstat (limited to 'toolchain/gcc/patches/3.4.5/600-gcc34-arm-ldm-peephole.patch')
-rw-r--r-- | toolchain/gcc/patches/3.4.5/600-gcc34-arm-ldm-peephole.patch | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/toolchain/gcc/patches/3.4.5/600-gcc34-arm-ldm-peephole.patch b/toolchain/gcc/patches/3.4.5/600-gcc34-arm-ldm-peephole.patch deleted file mode 100644 index 0c37050..0000000 --- a/toolchain/gcc/patches/3.4.5/600-gcc34-arm-ldm-peephole.patch +++ /dev/null @@ -1,65 +0,0 @@ ---- gcc-3.4.0/gcc/config/arm/arm.md.arm-ldm-peephole 2004-01-13 08:24:37.000000000 -0500 -+++ gcc-3.4.0/gcc/config/arm/arm.md 2004-04-24 18:18:04.000000000 -0400 -@@ -8810,13 +8810,16 @@ - (set_attr "length" "4,8,8")] - ) - -+; Try to convert LDR+LDR+arith into [add+]LDM+arith -+; On XScale, LDM is always slower than two LDRs, so only do this if -+; optimising for size. - (define_insn "*arith_adjacentmem" - [(set (match_operand:SI 0 "s_register_operand" "=r") - (match_operator:SI 1 "shiftable_operator" - [(match_operand:SI 2 "memory_operand" "m") - (match_operand:SI 3 "memory_operand" "m")])) - (clobber (match_scratch:SI 4 "=r"))] -- "TARGET_ARM && adjacent_mem_locations (operands[2], operands[3])" -+ "TARGET_ARM && (!arm_tune_xscale || optimize_size) && adjacent_mem_locations (operands[2], operands[3])" - "* - { - rtx ldm[3]; -@@ -8851,6 +8854,8 @@ - } - if (val1 && val2) - { -+ /* This would be a loss on a Harvard core, but adjacent_mem_locations() -+ will prevent it from happening. */ - rtx ops[3]; - ldm[0] = ops[0] = operands[4]; - ops[1] = XEXP (XEXP (operands[2], 0), 0); ---- gcc-3.4.0/gcc/config/arm/arm.c.arm-ldm-peephole 2004-04-24 18:16:25.000000000 -0400 -+++ gcc-3.4.0/gcc/config/arm/arm.c 2004-04-24 18:18:04.000000000 -0400 -@@ -4838,6 +4841,11 @@ - *load_offset = unsorted_offsets[order[0]]; - } - -+ /* For XScale a two-word LDM is a performance loss, so only do this if -+ size is more important. See comments in arm_gen_load_multiple. */ -+ if (nops == 2 && arm_tune_xscale && !optimize_size) -+ return 0; -+ - if (unsorted_offsets[order[0]] == 0) - return 1; /* ldmia */ - -@@ -5064,6 +5072,11 @@ - *load_offset = unsorted_offsets[order[0]]; - } - -+ /* For XScale a two-word LDM is a performance loss, so only do this if -+ size is more important. See comments in arm_gen_load_multiple. */ -+ if (nops == 2 && arm_tune_xscale && !optimize_size) -+ return 0; -+ - if (unsorted_offsets[order[0]] == 0) - return 1; /* stmia */ - ---- gcc-3.4.0/gcc/genpeep.c.arm-ldm-peephole 2003-07-05 01:27:22.000000000 -0400 -+++ gcc-3.4.0/gcc/genpeep.c 2004-04-24 18:18:04.000000000 -0400 -@@ -381,6 +381,7 @@ - printf ("#include \"recog.h\"\n"); - printf ("#include \"except.h\"\n\n"); - printf ("#include \"function.h\"\n\n"); -+ printf ("#include \"flags.h\"\n\n"); - - printf ("#ifdef HAVE_peephole\n"); - printf ("extern rtx peep_operand[];\n\n"); |