re PR target/50099 (ICE: internal compiler error: in extract_insn, at…

re PR target/50099 (ICE: internal compiler error: in extract_insn, at recog.c:2113 while building lttng-ust)


Fix PR target/50099

From-SVN: r179378

gcc/ChangeLog

+2011-09-30  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
+
+        PR target/50099
+	* config/arm/iterators.md (qhs_zextenddi_cstr): New.
+	(qhs_zextenddi_op): New.
+	* config/arm/arm.md ("zero_extend<mode>di2"): Use them.
+	* config/arm/predicates.md ("arm_extendqisi_mem_op"):
+	Distinguish between ARM and Thumb2 states.
+
 2011-09-30  David S. Miller  <davem@davemloft.net>
 
 	* config/sparc/sparc.opt (VIS2): New option.

gcc/config/arm/arm.md

@@ -4389,8 +4389,8 @@
 
 (define_insn "zero_extend<mode>di2"
   [(set (match_operand:DI 0 "s_register_operand" "=r")
-        (zero_extend:DI (match_operand:QHSI 1 "<qhs_extenddi_op>"
-					    "<qhs_extenddi_cstr>")))]
+        (zero_extend:DI (match_operand:QHSI 1 "<qhs_zextenddi_op>"
+					    "<qhs_zextenddi_cstr>")))]
   "TARGET_32BIT <qhs_zextenddi_cond>"
   "#"
   [(set_attr "length" "8")

gcc/config/arm/iterators.md

@@ -390,10 +390,14 @@
 (define_mode_attr qhs_zextenddi_cond [(SI "") (HI "&& arm_arch6") (QI "")])
 (define_mode_attr qhs_sextenddi_cond [(SI "") (HI "&& arm_arch6")
 				      (QI "&& arm_arch6")])
-(define_mode_attr qhs_extenddi_op [(SI "s_register_operand")
+(define_mode_attr qhs_zextenddi_op [(SI "s_register_operand")
 				   (HI "nonimmediate_operand")
 				   (QI "nonimmediate_operand")])
-(define_mode_attr qhs_extenddi_cstr [(SI "r") (HI "rm") (QI "rm")])
+(define_mode_attr qhs_extenddi_op [(SI "s_register_operand")
+				   (HI "nonimmediate_operand")
+				   (QI "arm_reg_or_extendqisi_mem_op")])
+(define_mode_attr qhs_extenddi_cstr [(SI "r") (HI "rm") (QI "rUq")])
+(define_mode_attr qhs_zextenddi_cstr [(SI "r") (HI "rm") (QI "rm")])
 
 ;; Mode attributes used for fixed-point support.
 (define_mode_attr qaddsub_suf [(V4UQQ "8") (V2UHQ "16") (UQQ "8") (UHQ "16")

gcc/config/arm/predicates.md

@@ -301,8 +301,11 @@
 
 (define_special_predicate "arm_extendqisi_mem_op"
   (and (match_operand 0 "memory_operand")
-       (match_test "arm_legitimate_address_outer_p (mode, XEXP (op, 0),
-						    SIGN_EXTEND, 0)")))
+       (match_test "TARGET_ARM ? arm_legitimate_address_outer_p (mode,
+                                                                 XEXP (op, 0),
+						                 SIGN_EXTEND,
+								 0)
+                               : memory_address_p (QImode, XEXP (op, 0))")))
 
 (define_special_predicate "arm_reg_or_extendqisi_mem_op"
   (ior (match_operand 0 "arm_extendqisi_mem_op")

gcc/testsuite/ChangeLog

+2011-09-30  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>
+
+	* gcc.target/arm/pr50099.c: New test.
+
 2011-09-30  Matthew Gretton-Dann  <matthew.gretton-dann@arm.com>
 
        * gcc.target/arm/pr42835.c: Add -fno-tree-tail-merge.

gcc/testsuite/gcc.target/arm/pr50099.c

+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+long long foo (signed char * arg)
+{
+  long long temp_1;
+
+  temp_1 = arg[256]; 
+  return temp_1;
+}