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wasm: support ThinLTO

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Using ThinLTO manages to optimize binaries quite significantly. The
exact amount varies a lot by program but it's about 10-15% usually.

Don't remove non-ThinLTO support yet. It would not surprise me if this
triggered some unintended side effect. Eventually, non-ThinLTO support
should be removed though.
This commit is contained in:
Ayke van Laethem
2022-11-25 02:27:27 +01:00
committed by Ayke
parent 7fa13ed0a6
commit da362b8a24
3 changed files with 10 additions and 10 deletions
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compiler/testdata/pragma.ll
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@@ -6,6 +6,7 @@ target triple = "wasm32-unknown-wasi"
@extern_global = external global [0 x i8], align 1
@main.alignedGlobal = hidden global [4 x i32] zeroinitializer, align 32
@main.alignedGlobal16 = hidden global [4 x i32] zeroinitializer, align 16
@llvm.used = appending global [2 x ptr] [ptr @extern_func, ptr @exportedFunctionInSection]
@main.globalInSection = hidden global i32 0, section ".special_global_section", align 4
@undefinedGlobalNotInSection = external global i32, align 4
@main.multipleGlobalPragmas = hidden global i32 0, section ".global_section", align 1024