diff options
Diffstat (limited to 'recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99338.patch')
| -rw-r--r-- | recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99338.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99338.patch b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99338.patch new file mode 100644 index 0000000000..632e80caf7 --- /dev/null +++ b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99338.patch | |||
| @@ -0,0 +1,111 @@ | |||
| 1 | 2009-06-23 Kazu Hirata <kazu@codesourcery.com> | ||
| 2 | |||
| 3 | Issue #4613 | ||
| 4 | gcc/ | ||
| 5 | * config/arm/arm.c (arm_rtx_costs_1): Teach that the cost of MLS | ||
| 6 | is the same as its underlying multiplication. | ||
| 7 | * config/arm/arm.md (two splitters): New. | ||
| 8 | * config/arm/predicates.md (binary_operator): New. | ||
| 9 | |||
| 10 | 2010-07-26 Julian Brown <julian@codesourcery.com> | ||
| 11 | |||
| 12 | Merge from Sourcery G++ 4.4: | ||
| 13 | |||
| 14 | 2008-09-08 Daniel Jacobowitz <dan@codesourcery.com> | ||
| 15 | |||
| 16 | gcc/ | ||
| 17 | |||
| 18 | === modified file 'gcc/config/arm/arm.c' | ||
| 19 | --- old/gcc/config/arm/arm.c 2010-08-12 11:33:54 +0000 | ||
| 20 | +++ new/gcc/config/arm/arm.c 2010-08-12 13:35:39 +0000 | ||
| 21 | @@ -6604,6 +6604,19 @@ | ||
| 22 | return true; | ||
| 23 | } | ||
| 24 | |||
| 25 | + /* MLS is just as expensive as its underlying multiplication. | ||
| 26 | + Exclude a shift by a constant, which is expressed as a | ||
| 27 | + multiplication. */ | ||
| 28 | + if (TARGET_32BIT && arm_arch_thumb2 | ||
| 29 | + && GET_CODE (XEXP (x, 1)) == MULT | ||
| 30 | + && ! (GET_CODE (XEXP (XEXP (x, 1), 1)) == CONST_INT | ||
| 31 | + && ((INTVAL (XEXP (XEXP (x, 1), 1)) & | ||
| 32 | + (INTVAL (XEXP (XEXP (x, 1), 1)) - 1)) == 0))) | ||
| 33 | + { | ||
| 34 | + /* The cost comes from the cost of the multiply. */ | ||
| 35 | + return false; | ||
| 36 | + } | ||
| 37 | + | ||
| 38 | /* Fall through */ | ||
| 39 | |||
| 40 | case PLUS: | ||
| 41 | |||
| 42 | === modified file 'gcc/config/arm/arm.md' | ||
| 43 | --- old/gcc/config/arm/arm.md 2010-08-12 11:33:54 +0000 | ||
| 44 | +++ new/gcc/config/arm/arm.md 2010-08-12 13:35:39 +0000 | ||
| 45 | @@ -1355,6 +1355,49 @@ | ||
| 46 | (set_attr "predicable" "yes")] | ||
| 47 | ) | ||
| 48 | |||
| 49 | +; The combiner cannot combine the first and last insns in the | ||
| 50 | +; following sequence because of the intervening insn, so help the | ||
| 51 | +; combiner with this splitter. The combiner does attempt to split | ||
| 52 | +; this particular combination but does not know this exact split. | ||
| 53 | +; Note that the combiner puts the constant at the outermost operation | ||
| 54 | +; as a part of canonicalization. | ||
| 55 | +; | ||
| 56 | +; mul r3, r2, r1 | ||
| 57 | +; <add/sub> r3, r3, <constant> | ||
| 58 | +; add r3, r3, r4 | ||
| 59 | + | ||
| 60 | +(define_split | ||
| 61 | + [(set (match_operand:SI 0 "s_register_operand" "") | ||
| 62 | + (match_operator:SI 1 "plusminus_operator" | ||
| 63 | + [(plus:SI (mult:SI (match_operand:SI 2 "s_register_operand" "") | ||
| 64 | + (match_operand:SI 3 "s_register_operand" "")) | ||
| 65 | + (match_operand:SI 4 "s_register_operand" "")) | ||
| 66 | + (match_operand:SI 5 "arm_immediate_operand" "")]))] | ||
| 67 | + "TARGET_32BIT" | ||
| 68 | + [(set (match_dup 0) | ||
| 69 | + (plus:SI (mult:SI (match_dup 2) (match_dup 3)) | ||
| 70 | + (match_dup 4))) | ||
| 71 | + (set (match_dup 0) | ||
| 72 | + (match_op_dup:SI 1 [(match_dup 0) (match_dup 5)]))] | ||
| 73 | + "") | ||
| 74 | + | ||
| 75 | +; Likewise for MLS. MLS is available only on select architectures. | ||
| 76 | + | ||
| 77 | +(define_split | ||
| 78 | + [(set (match_operand:SI 0 "s_register_operand" "") | ||
| 79 | + (match_operator:SI 1 "plusminus_operator" | ||
| 80 | + [(minus:SI (match_operand:SI 2 "s_register_operand" "") | ||
| 81 | + (mult:SI (match_operand:SI 3 "s_register_operand" "") | ||
| 82 | + (match_operand:SI 4 "s_register_operand" ""))) | ||
| 83 | + (match_operand:SI 5 "arm_immediate_operand" "")]))] | ||
| 84 | + "TARGET_32BIT && arm_arch_thumb2" | ||
| 85 | + [(set (match_dup 0) | ||
| 86 | + (minus:SI (match_dup 2) | ||
| 87 | + (mult:SI (match_dup 3) (match_dup 4)))) | ||
| 88 | + (set (match_dup 0) | ||
| 89 | + (match_op_dup:SI 1 [(match_dup 0) (match_dup 5)]))] | ||
| 90 | + "") | ||
| 91 | + | ||
| 92 | (define_insn "*mulsi3addsi_compare0" | ||
| 93 | [(set (reg:CC_NOOV CC_REGNUM) | ||
| 94 | (compare:CC_NOOV | ||
| 95 | |||
| 96 | === modified file 'gcc/config/arm/predicates.md' | ||
| 97 | --- old/gcc/config/arm/predicates.md 2010-08-10 13:31:21 +0000 | ||
| 98 | +++ new/gcc/config/arm/predicates.md 2010-08-12 13:35:39 +0000 | ||
| 99 | @@ -197,6 +197,11 @@ | ||
| 100 | (and (match_code "plus,minus,ior,xor,and") | ||
| 101 | (match_test "mode == GET_MODE (op)"))) | ||
| 102 | |||
| 103 | +;; True for plus/minus operators | ||
| 104 | +(define_special_predicate "plusminus_operator" | ||
| 105 | + (and (match_code "plus,minus") | ||
| 106 | + (match_test "mode == GET_MODE (op)"))) | ||
| 107 | + | ||
| 108 | ;; True for logical binary operators. | ||
| 109 | (define_special_predicate "logical_binary_operator" | ||
| 110 | (and (match_code "ior,xor,and") | ||
| 111 | |||