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translate-c: fix panic when translating long double literals

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Carl Åstholm 2023-09-05 17:41:53 +02:00 committed by Veikka Tuominen
parent d1a14e7b6d
commit e980bd0aee
2 changed files with 17 additions and 3 deletions
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4
src/clang.zig
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@ -110,9 +110,11 @@ pub const APFloatBaseSemantics = enum(c_int) {
BFloat, BFloat,
IEEEsingle, IEEEsingle,
IEEEdouble, IEEEdouble,
x86DoubleExtended,
IEEEquad, IEEEquad,
PPCDoubleDouble, PPCDoubleDouble,
Float8E5M2,
Float8E4M3FN,
x87DoubleExtended,
}; };
pub const APInt = opaque { pub const APInt = opaque {

16
test/translate_c.zig
View File

@ -1205,7 +1205,10 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
\\#define baz 1e1 \\#define baz 1e1
\\#define BAZ 42e-3f \\#define BAZ 42e-3f
\\#define foobar -73.L \\#define foobar -73.L
, &[_][]const u8{ \\extern const float my_float = 1.0f;
\\extern const double my_double = 1.0;
\\extern const long double my_longdouble = 1.0l;
, &([_][]const u8{
"pub const foo = @as(f32, 3.14);", "pub const foo = @as(f32, 3.14);",
"pub const bar = @as(c_longdouble, 16.0e-2);", "pub const bar = @as(c_longdouble, 16.0e-2);",
"pub const FOO = @as(f64, 0.12345);", "pub const FOO = @as(f64, 0.12345);",
@ -1213,7 +1216,16 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
"pub const baz = @as(f64, 1e1);", "pub const baz = @as(f64, 1e1);",
"pub const BAZ = @as(f32, 42e-3);", "pub const BAZ = @as(f32, 42e-3);",
"pub const foobar = -@as(c_longdouble, 73.0);", "pub const foobar = -@as(c_longdouble, 73.0);",
}); "pub export const my_float: f32 = 1.0;",
"pub export const my_double: f64 = 1.0;",
} ++ if (@bitSizeOf(c_longdouble) != 64) .{
// TODO properly translate non-64-bit long doubles
"source.h:10:42: warning: unsupported floating point constant format",
"source.h:10:26: warning: unable to translate variable initializer, demoted to extern",
"pub extern const my_longdouble: c_longdouble;",
} else .{
"pub export const my_longdouble: c_longdouble = 1.0;",
}));
cases.add("macro defines hexadecimal float", cases.add("macro defines hexadecimal float",
\\#define FOO 0xf7p38 \\#define FOO 0xf7p38