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fix floatCast type check regression

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Closes #5900
This commit is contained in:
Vexu 2020-07-18 10:22:15 +03:00
parent 39915ae086
commit 78962eeeda
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GPG Key ID: 59AEB8936E16A6AC
2 changed files with 18 additions and 0 deletions
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6
src/ir.cpp
View File

@ -26739,6 +26739,12 @@ static IrInstGen *ir_analyze_instruction_float_cast(IrAnalyze *ira, IrInstSrcFlo
}
}
if (target->value->type->id != ZigTypeIdFloat) {
ir_add_error(ira, &instruction->target->base, buf_sprintf("expected float type, found '%s'",
buf_ptr(&target->value->type->name)));
return ira->codegen->invalid_inst_gen;
}
if (instr_is_comptime(target) || dest_type->id == ZigTypeIdComptimeFloat) {
ZigValue *val = ir_resolve_const(ira, target, UndefBad);
if (val == nullptr)

12
test/compile_errors.zig
View File

@ -122,6 +122,10 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
\\ var a: u32 = 2;
\\ _ = @floatToInt(u32, a);
\\}
\\export fn qux() void {
\\ var a: f32 = 2;
\\ _ = @intCast(u32, a);
\\}
, &[_][]const u8{
"tmp.zig:3:32: error: unable to evaluate constant expression",
"tmp.zig:3:9: note: referenced here",
@ -129,6 +133,8 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
"tmp.zig:7:9: note: referenced here",
"tmp.zig:11:26: error: expected float type, found 'u32'",
"tmp.zig:11:9: note: referenced here",
"tmp.zig:15:23: error: expected integer type, found 'f32'",
"tmp.zig:15:9: note: referenced here",
});
cases.addTest("invalid float casts",
@ -144,6 +150,10 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
\\ var a: f32 = 2;
\\ _ = @intToFloat(f32, a);
\\}
\\export fn qux() void {
\\ var a: u32 = 2;
\\ _ = @floatCast(f32, a);
\\}
, &[_][]const u8{
"tmp.zig:3:36: error: unable to evaluate constant expression",
"tmp.zig:3:9: note: referenced here",
@ -151,6 +161,8 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
"tmp.zig:7:9: note: referenced here",
"tmp.zig:11:26: error: expected int type, found 'f32'",
"tmp.zig:11:9: note: referenced here",
"tmp.zig:15:25: error: expected float type, found 'u32'",
"tmp.zig:15:9: note: referenced here",
});
cases.addTest("invalid assignments",