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.
57 lines
2.5 KiB
LLVM
57 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT
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; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
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; Don't promote around control flow.
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define internal i32 @callee(i1 %C, ptr %P) {
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; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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; CHECK-LABEL: define {{[^@]+}}@callee
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; CHECK-SAME: (i1 noundef [[C:%.*]], ptr nofree readonly captures(none) [[P:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 [[C]], label [[T:%.*]], label [[F:%.*]]
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; CHECK: T:
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; CHECK-NEXT: ret i32 17
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; CHECK: F:
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; CHECK-NEXT: [[X:%.*]] = load i32, ptr [[P]], align 4
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; CHECK-NEXT: ret i32 [[X]]
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;
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entry:
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br i1 %C, label %T, label %F
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T:
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ret i32 17
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F:
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%X = load i32, ptr %P
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ret i32 %X
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}
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define i32 @foo(i1 %C, ptr %P) {
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; TUNIT: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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; TUNIT-LABEL: define {{[^@]+}}@foo
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; TUNIT-SAME: (i1 [[C:%.*]], ptr nofree readonly captures(none) [[P:%.*]]) #[[ATTR0]] {
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; TUNIT-NEXT: entry:
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; TUNIT-NEXT: [[X:%.*]] = call i32 @callee(i1 noundef [[C]], ptr nofree readonly captures(none) [[P]]) #[[ATTR1:[0-9]+]]
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; TUNIT-NEXT: ret i32 [[X]]
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;
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; CGSCC: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(argmem: read)
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; CGSCC-LABEL: define {{[^@]+}}@foo
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; CGSCC-SAME: (i1 noundef [[C:%.*]], ptr nofree readonly captures(none) [[P:%.*]]) #[[ATTR1:[0-9]+]] {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: [[X:%.*]] = call i32 @callee(i1 noundef [[C]], ptr nofree readonly captures(none) [[P]]) #[[ATTR2:[0-9]+]]
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; CGSCC-NEXT: ret i32 [[X]]
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;
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entry:
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%X = call i32 @callee(i1 %C, ptr %P)
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ret i32 %X
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}
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;.
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; TUNIT: attributes #[[ATTR0]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) }
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; TUNIT: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(read) }
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;.
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; CGSCC: attributes #[[ATTR0]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read) }
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; CGSCC: attributes #[[ATTR1]] = { mustprogress nofree nosync nounwind willreturn memory(argmem: read) }
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; CGSCC: attributes #[[ATTR2]] = { nofree willreturn memory(read) }
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;.
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