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- gcc svn 142778:
- PR target/37436
- * arm.c (arm_legitimate_index): Only accept addresses that are in
- canonical form.
- * predicates.md (arm_reg_or_extendqisi_mem_op): New predicate.
- * arm.md (extendqihi2): Use arm_reg_or_extendqisi_mem_op predicate
- for operand1.
- (extendqisi2): Likewise.
- (arm_extendqisi, arm_extendqisi_v6): Use arm_extendqisi_mem_op
- predicate for operand1.
- diff -Nura gcc-4.3.3.orig/gcc/config/arm/arm.c gcc-4.3.3/gcc/config/arm/arm.c
- --- gcc-4.3.3.orig/gcc/config/arm/arm.c 2008-06-11 07:52:55.000000000 -0300
- +++ gcc-4.3.3/gcc/config/arm/arm.c 2009-05-21 16:06:45.000000000 -0300
- @@ -3769,6 +3769,7 @@
- rtx xop1 = XEXP (x, 1);
-
- return ((arm_address_register_rtx_p (xop0, strict_p)
- + && GET_CODE(xop1) == CONST_INT
- && arm_legitimate_index_p (mode, xop1, outer, strict_p))
- || (arm_address_register_rtx_p (xop1, strict_p)
- && arm_legitimate_index_p (mode, xop0, outer, strict_p)));
- diff -Nura gcc-4.3.3.orig/gcc/config/arm/arm.md gcc-4.3.3/gcc/config/arm/arm.md
- --- gcc-4.3.3.orig/gcc/config/arm/arm.md 2007-09-04 01:44:47.000000000 -0300
- +++ gcc-4.3.3/gcc/config/arm/arm.md 2009-05-21 16:06:45.000000000 -0300
- @@ -4199,7 +4199,7 @@
-
- (define_expand "extendqihi2"
- [(set (match_dup 2)
- - (ashift:SI (match_operand:QI 1 "general_operand" "")
- + (ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
- (const_int 24)))
- (set (match_operand:HI 0 "s_register_operand" "")
- (ashiftrt:SI (match_dup 2)
- @@ -4224,7 +4224,7 @@
-
- (define_insn "*arm_extendqihi_insn"
- [(set (match_operand:HI 0 "s_register_operand" "=r")
- - (sign_extend:HI (match_operand:QI 1 "memory_operand" "Uq")))]
- + (sign_extend:HI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
- "TARGET_ARM && arm_arch4"
- "ldr%(sb%)\\t%0, %1"
- [(set_attr "type" "load_byte")
- @@ -4235,7 +4235,7 @@
-
- (define_expand "extendqisi2"
- [(set (match_dup 2)
- - (ashift:SI (match_operand:QI 1 "general_operand" "")
- + (ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
- (const_int 24)))
- (set (match_operand:SI 0 "s_register_operand" "")
- (ashiftrt:SI (match_dup 2)
- @@ -4267,7 +4267,7 @@
-
- (define_insn "*arm_extendqisi"
- [(set (match_operand:SI 0 "s_register_operand" "=r")
- - (sign_extend:SI (match_operand:QI 1 "memory_operand" "Uq")))]
- + (sign_extend:SI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
- "TARGET_ARM && arm_arch4 && !arm_arch6"
- "ldr%(sb%)\\t%0, %1"
- [(set_attr "type" "load_byte")
- @@ -4278,7 +4278,8 @@
-
- (define_insn "*arm_extendqisi_v6"
- [(set (match_operand:SI 0 "s_register_operand" "=r,r")
- - (sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,Uq")))]
- + (sign_extend:SI
- + (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "r,Uq")))]
- "TARGET_ARM && arm_arch6"
- "@
- sxtb%?\\t%0, %1
- diff -Nura gcc-4.3.3.orig/gcc/config/arm/predicates.md gcc-4.3.3/gcc/config/arm/predicates.md
- --- gcc-4.3.3.orig/gcc/config/arm/predicates.md 2007-08-02 07:49:31.000000000 -0300
- +++ gcc-4.3.3/gcc/config/arm/predicates.md 2009-05-21 16:06:45.000000000 -0300
- @@ -234,6 +234,10 @@
- (match_test "arm_legitimate_address_p (mode, XEXP (op, 0), SIGN_EXTEND,
- 0)")))
-
- +(define_special_predicate "arm_reg_or_extendqisi_mem_op"
- + (ior (match_operand 0 "arm_extendqisi_mem_op")
- + (match_operand 0 "s_register_operand")))
- +
- (define_predicate "power_of_two_operand"
- (match_code "const_int")
- {
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