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Merge pull request #4707 from Vexu/small-atomics

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Support atomic operations with bools and non power of two integers
This commit is contained in:
Andrew Kelley
2020-03-12 18:55:16 -04:00
committed by GitHub
parent aa49f972d6 71d776c3be
commit f51bec321b
11 changed files with 417 additions and 178 deletions
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13
test/compile_errors.zig
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@@ -49,6 +49,15 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
"tmp.zig:5:9: error: resume in noasync scope",
});
cases.add("atomicrmw with bool op not .Xchg",
\\export fn entry() void {
\\ var x = false;
\\ _ = @atomicRmw(bool, &x, .Add, true, .SeqCst);
\\}
, &[_][]const u8{
"tmp.zig:3:30: error: @atomicRmw with bool only allowed with .Xchg",
});
cases.addTest("@TypeOf with no arguments",
\\export fn entry() void {
\\ _ = @TypeOf();
@@ -357,7 +366,7 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
\\ _ = @atomicRmw(f32, &x, .And, 2, .SeqCst);
\\}
, &[_][]const u8{
"tmp.zig:3:29: error: @atomicRmw with float only works with .Xchg, .Add and .Sub",
"tmp.zig:3:29: error: @atomicRmw with float only allowed with .Xchg, .Add and .Sub",
});
cases.add("intToPtr with misaligned address",
@@ -574,7 +583,7 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
\\ _ = @atomicRmw(E, &x, .Add, .b, .SeqCst);
\\}
, &[_][]const u8{
"tmp.zig:9:27: error: @atomicRmw on enum only works with .Xchg",
"tmp.zig:9:27: error: @atomicRmw with enum only allowed with .Xchg",
});
cases.add("disallow coercion from non-null-terminated pointer to null-terminated pointer",