diff options
Diffstat (limited to 'src/llvm_backend_expr.cpp')
| -rw-r--r-- | src/llvm_backend_expr.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/llvm_backend_expr.cpp b/src/llvm_backend_expr.cpp index dbbc6268a..ebc3ec158 100644 --- a/src/llvm_backend_expr.cpp +++ b/src/llvm_backend_expr.cpp @@ -305,6 +305,9 @@ gb_internal IntegerDivisionByZeroKind lb_check_for_integer_division_by_zero_beha if (flags & OptInFeatureFlag_IntegerDivisionByZero_Self) { return IntegerDivisionByZero_Self; } + if (flags & OptInFeatureFlag_IntegerDivisionByZero_AllBits) { + return IntegerDivisionByZero_AllBits; + } } return build_context.integer_division_by_zero_behaviour; } @@ -1140,6 +1143,7 @@ gb_internal LLVMValueRef lb_integer_division(lbProcedure *p, LLVMValueRef lhs, L GB_ASSERT(LLVMTypeOf(lhs) == type); LLVMValueRef zero = LLVMConstNull(type); + LLVMValueRef all_bits = LLVMConstNot(zero); auto behaviour = lb_check_for_integer_division_by_zero_behaviour(p); auto *call = is_signed ? LLVMBuildSDiv : LLVMBuildUDiv; @@ -1151,6 +1155,9 @@ gb_internal LLVMValueRef lb_integer_division(lbProcedure *p, LLVMValueRef lhs, L return lhs; case IntegerDivisionByZero_Zero: return zero; + case IntegerDivisionByZero_AllBits: + // return all_bits; + break; } } else { if (!is_signed && lb_sizeof(type) <= 8) { @@ -1198,6 +1205,9 @@ gb_internal LLVMValueRef lb_integer_division(lbProcedure *p, LLVMValueRef lhs, L case IntegerDivisionByZero_Self: incoming_values[1] = lhs; break; + case IntegerDivisionByZero_AllBits: + incoming_values[1] = all_bits; + break; } lb_emit_jump(p, done_block); @@ -1211,6 +1221,7 @@ gb_internal LLVMValueRef lb_integer_division(lbProcedure *p, LLVMValueRef lhs, L res = incoming_values[0]; break; case IntegerDivisionByZero_Zero: + case IntegerDivisionByZero_AllBits: res = LLVMBuildPhi(p->builder, type, ""); GB_ASSERT(p->curr_block->preds.count >= 2); @@ -1229,6 +1240,7 @@ gb_internal LLVMValueRef lb_integer_division_intrinsics(lbProcedure *p, LLVMValu GB_ASSERT(LLVMTypeOf(lhs) == type); LLVMValueRef zero = LLVMConstNull(type); + LLVMValueRef all_bits = LLVMConstNot(zero); auto behaviour = lb_check_for_integer_division_by_zero_behaviour(p); auto const do_op = [&]() -> LLVMValueRef { @@ -1285,6 +1297,9 @@ gb_internal LLVMValueRef lb_integer_division_intrinsics(lbProcedure *p, LLVMValu case IntegerDivisionByZero_Self: incoming_values[1] = lhs; break; + case IntegerDivisionByZero_AllBits: + incoming_values[1] = all_bits; + break; } lb_emit_jump(p, done_block); @@ -1298,6 +1313,7 @@ gb_internal LLVMValueRef lb_integer_division_intrinsics(lbProcedure *p, LLVMValu res = incoming_values[0]; break; case IntegerDivisionByZero_Zero: + case IntegerDivisionByZero_AllBits: res = LLVMBuildPhi(p->builder, type, ""); GB_ASSERT(p->curr_block->preds.count >= 2); @@ -1344,6 +1360,7 @@ gb_internal LLVMValueRef lb_integer_modulo(lbProcedure *p, LLVMValueRef lhs, LLV case IntegerDivisionByZero_Self: return zero; case IntegerDivisionByZero_Zero: + case IntegerDivisionByZero_AllBits: return lhs; } } else { @@ -1386,6 +1403,7 @@ gb_internal LLVMValueRef lb_integer_modulo(lbProcedure *p, LLVMValueRef lhs, LLV LLVMBuildUnreachable(p->builder); break; case IntegerDivisionByZero_Zero: + case IntegerDivisionByZero_AllBits: incoming_values[1] = lhs; break; case IntegerDivisionByZero_Self: @@ -1404,6 +1422,7 @@ gb_internal LLVMValueRef lb_integer_modulo(lbProcedure *p, LLVMValueRef lhs, LLV res = incoming_values[0]; break; case IntegerDivisionByZero_Zero: + case IntegerDivisionByZero_AllBits: res = LLVMBuildPhi(p->builder, type, ""); GB_ASSERT(p->curr_block->preds.count >= 2); |