[PATCH] D60809: [builtins] __gnu_{ldivmod, uldivmod}_helper for libgcc compatibility

[Yi Kong via Phabricator via llvm-commits]

kongyi created this revision.
kongyi added reviewers: peter.smith, kristof.beyls, rengolin.
Herald added projects: LLVM, Sanitizers.
Herald added subscribers: llvm-commits, Sanitizers.

Repository:
  rCRT Compiler Runtime

https://reviews.llvm.org/D60809

Files:
  compiler-rt/lib/builtins/divdi3.c
  compiler-rt/lib/builtins/udivdi3.c


Index: compiler-rt/lib/builtins/udivdi3.c
===================================================================
--- compiler-rt/lib/builtins/udivdi3.c
+++ compiler-rt/lib/builtins/udivdi3.c
@@ -20,3 +20,13 @@
 {
     return __udivmoddi4(a, b, 0);
 }
+
+#if defined(__ARM_EABI__)
+// For libgcc compatibility
+COMPILER_RT_ABI du_int
+__gnu_uldivmod_helper(du_int a, du_int b, du_int *remainder) {
+    di_int quotient = __udivdi3 (a, b);
+    *remainder = a - b * quotient;
+    return quotient;
+}
+#endif
\ No newline at end of file
Index: compiler-rt/lib/builtins/divdi3.c
===================================================================
--- compiler-rt/lib/builtins/divdi3.c
+++ compiler-rt/lib/builtins/divdi3.c
@@ -26,3 +26,13 @@
     s_a ^= s_b;                                  /*sign of quotient */
     return (__udivmoddi4(a, b, (du_int*)0) ^ s_a) - s_a;  /* negate if s_a == -1 */
 }
+
+#if defined(__ARM_EABI__)
+// For libgcc compatibility
+COMPILER_RT_ABI di_int
+__gnu_ldivmod_helper(di_int a, di_int b, di_int *remainder) {
+    di_int quotient = __divdi3 (a, b);
+    *remainder = a - b * quotient;
+    return quotient;
+}
+#endif
\ No newline at end of file


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