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This repository was archived by the owner on May 28, 2025. It is now read-only.
/rustPublic archive
forked fromrust-lang/rust

Commite9cfac3

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Unrolled build forrust-lang#123714
Rollup merge ofrust-lang#123714 - cjgillot:static-fnptr, r=wesleywiserAdd test for fn pointer duplication.I managed to make it fail when removing provenance checks in GVN.ccrust-lang#123670r? ``````@oli-obk``````
2 parents9ed2ab3 +4c779d7 commite9cfac3

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//@ compile-flags:-O
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#[inline]
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fnfoo(){}
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pubstaticADDR:fn() = foo;
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#[inline(always)]
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pubfnbar(x:fn()) ->bool{
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x ==ADDR
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}

‎tests/ui/mir/static_fnptr.rs‎

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//! Verify that we correctly handle fn pointer provenance in MIR optimizations.
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//! By asking to inline `static_fnptr::bar`, we have two copies of `static_fnptr::foo`, one in the
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//! auxiliary crate and one in the local crate CGU.
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//! `baz` must only consider the versions from upstream crate, and not try to compare with the
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//! address of the CGU-local copy.
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//! Related issue: #123670
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//@ run-pass
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//@ compile-flags:-Cno-prepopulate-passes -Copt-level=0
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//@ aux-build:static_fnptr.rs
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externcrate static_fnptr;
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use static_fnptr::{ADDR, bar};
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fnbaz() ->bool{
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bar(ADDR)
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}
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fnmain(){
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assert!(baz())
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}

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