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| author | Andrew Kelley <andrew@ziglang.org> | 2023-04-21 13:32:25 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-04-21 13:32:25 -0700 |
| commit | 528b66f6ec9cfb140abff3dc0c4735c179520f42 (patch) | |
| tree | 6fc4f164a93a6bd3c2c3467457aedce6fa7959b3 /src/codegen/spirv.zig | |
| parent | 391663e497f1871f6bddcf9cbc500710aa9aac4d (diff) | |
| parent | b3f9fe6d0439bcbb5c6baa77c0646c4da2e06dd7 (diff) | |
| download | zig-528b66f6ec9cfb140abff3dc0c4735c179520f42.tar.gz zig-528b66f6ec9cfb140abff3dc0c4735c179520f42.zip | |
Merge pull request #15355 from mlugg/feat/liveness-control-flow
Liveness: control flow analysis and other goodies
Diffstat (limited to 'src/codegen/spirv.zig')
| -rw-r--r-- | src/codegen/spirv.zig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/codegen/spirv.zig b/src/codegen/spirv.zig index 58da5539ac..87b72c6726 100644 --- a/src/codegen/spirv.zig +++ b/src/codegen/spirv.zig @@ -1507,6 +1507,11 @@ pub const DeclGen = struct { } fn genInst(self: *DeclGen, inst: Air.Inst.Index) !void { + // TODO: remove now-redundant isUnused calls from AIR handler functions + if (self.liveness.isUnused(inst) and !self.air.mustLower(inst)) { + return; + } + const air_tags = self.air.instructions.items(.tag); const maybe_result_id: ?IdRef = switch (air_tags[inst]) { // zig fmt: off |