29441e4f5f
This PR removes the old `nocapture` attribute, replacing it with the new `captures` attribute introduced in #116990. This change is intended to be essentially NFC, replacing existing uses of `nocapture` with `captures(none)` without adding any new analysis capabilities. Making use of non-`none` values is left for a followup. Some notes: * `nocapture` will be upgraded to `captures(none)` by the bitcode reader. * `nocapture` will also be upgraded by the textual IR reader. This is to make it easier to use old IR files and somewhat reduce the test churn in this PR. * Helper APIs like `doesNotCapture()` will check for `captures(none)`. * MLIR import will convert `captures(none)` into an `llvm.nocapture` attribute. The representation in the LLVM IR dialect should be updated separately.
20 lines
469 B
LLVM
20 lines
469 B
LLVM
; RUN: opt -S -passes='inferattrs,function(loop-mssa(licm))' < %s | FileCheck %s
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define void @test(ptr noalias %loc, ptr noalias %a) {
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; CHECK-LABEL: @test
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; CHECK: @strlen
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; CHECK-LABEL: loop:
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br label %loop
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loop:
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%res = call i64 @strlen(ptr %a)
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store i64 %res, ptr %loc
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br label %loop
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}
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; CHECK: declare i64 @strlen(ptr captures(none)) #0
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; CHECK: attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: read) }
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declare i64 @strlen(ptr)
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