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Remove division-by-zero checks for floating point in safe mode #2556.

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This commit is contained in:
Christoffer Lerno
2025-11-03 02:43:01 +01:00
parent 3ff922e12b
commit b3bce10699
3 changed files with 30 additions and 2 deletions
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4
src/compiler/llvm_codegen_expr.c
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@@ -4238,23 +4238,23 @@ void llvm_emit_binary(GenContext *c, BEValue *be_value, Expr *expr, BEValue *lhs
val = llvm_emit_add_int(c, lhs_type, lhs_value, rhs_value, expr->span);
break;
case BINARYOP_DIV:
llvm_emit_trap_zero(c, rhs_type, rhs_value, "Division by zero.", expr->span);
if (is_float)
{
val = LLVMBuildFDiv(c->builder, lhs_value, rhs_value, "fdiv");
break;
}
llvm_emit_trap_zero(c, rhs_type, rhs_value, "Division by zero.", expr->span);
val = type_is_unsigned(lhs_type)
? LLVMBuildUDiv(c->builder, lhs_value, rhs_value, "udiv")
: LLVMBuildSDiv(c->builder, lhs_value, rhs_value, "sdiv");
break;
case BINARYOP_MOD:
llvm_emit_trap_zero(c, rhs_type, rhs_value, "% by zero.", expr->span);
if (type_is_float(lhs_type))
{
val = LLVMBuildFRem(c->builder, lhs_value, rhs_value, "fmod");
break;
}
llvm_emit_trap_zero(c, rhs_type, rhs_value, "% by zero.", expr->span);
val = type_is_unsigned(lhs_type)
? LLVMBuildURem(c->builder, lhs_value, rhs_value, "umod")
: LLVMBuildSRem(c->builder, lhs_value, rhs_value, "smod");