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| author | drew <reserveblue@protonmail.com> | 2021-11-14 19:26:12 -0800 |
|---|---|---|
| committer | Andrew Kelley <andrew@ziglang.org> | 2021-11-16 16:51:31 -0700 |
| commit | dffa6dcaf93621ab8bbfdb8effad8bde6d73c20a (patch) | |
| tree | 9cf00541b702a4bae58775bd2925ae05d6e6d811 | |
| parent | ad4627ea3b645e4dd51397fe4a2d92878c2bd9bf (diff) | |
| download | zig-dffa6dcaf93621ab8bbfdb8effad8bde6d73c20a.tar.gz zig-dffa6dcaf93621ab8bbfdb8effad8bde6d73c20a.zip | |
make it more clear we should do UB wrapping optimizations for ptr arithmetic
| -rw-r--r-- | src/codegen/c.zig | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/codegen/c.zig b/src/codegen/c.zig index 554a60ad65..5fdc2b1c2a 100644 --- a/src/codegen/c.zig +++ b/src/codegen/c.zig @@ -1123,15 +1123,14 @@ fn genBody(f: *Function, body: []const Air.Inst.Index) error{ AnalysisFail, OutO .unreach => try airUnreach(f), .fence => try airFence(f, inst), - .ptr_add => try airPtrAddSub (f, inst, " + "), - .ptr_sub => try airPtrAddSub (f, inst, " - "), - // TODO use a different strategy for add that communicates to the optimizer // that wrapping is UB. .add => try airBinOp (f, inst, " + "), + .ptr_add => try airPtrAddSub (f, inst, " + "), // TODO use a different strategy for sub that communicates to the optimizer // that wrapping is UB. .sub => try airBinOp (f, inst, " - "), + .ptr_sub => try airPtrAddSub (f, inst, " - "), // TODO use a different strategy for mul that communicates to the optimizer // that wrapping is UB. .mul => try airBinOp (f, inst, " * "), |