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llvm-project/llvm/test/Transforms/Attributor/cb_range_enabled.ll
Nikita Popov 304f1d59ca [IR] Switch everything to use memory attribute 
This switches everything to use the memory attribute proposed in
https://discourse.llvm.org/t/rfc-unify-memory-effect-attributes/65579.
The old argmemonly, inaccessiblememonly and inaccessiblemem_or_argmemonly
attributes are dropped. The readnone, readonly and writeonly attributes
are restricted to parameters only.

The old attributes are auto-upgraded both in bitcode and IR.
The bitcode upgrade is a policy requirement that has to be retained
indefinitely. The IR upgrade is mainly there so it's not necessary
to update all tests using memory attributes in this patch, which
is already large enough. We could drop that part after migrating
tests, or retain it longer term, to make it easier to import IR
from older LLVM versions.

High-level Function/CallBase APIs like doesNotAccessMemory() or
setDoesNotAccessMemory() are mapped transparently to the memory
attribute. Code that directly manipulates attributes (e.g. via
AttributeList) on the other hand needs to switch to working with
the memory attribute instead.

Differential Revision: https://reviews.llvm.org/D135780
2022-11-04 10:21:38 +01:00

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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes --check-globals
; call site specific analysis is enabled
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-enable-call-site-specific-deduction=true -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=2 -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-enable-call-site-specific-deduction=true -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
define i32 @test_range(i32 %unknown) {
; CHECK-LABEL: define {{[^@]+}}@test_range
; CHECK-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[UNKNOWN]], 100
; CHECK-NEXT: [[TMP2:%.*]] = select i1 [[TMP1]], i32 100, i32 0
; CHECK-NEXT: ret i32 [[TMP2]]
;
%1 = icmp sgt i32 %unknown, 100
%2 = select i1 %1, i32 100, i32 0
ret i32 %2
}
define i32 @test1(i32 %unknown, i32 %b) {
; TUNIT-LABEL: define {{[^@]+}}@test1
; TUNIT-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR0]] {
; TUNIT-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]])
; TUNIT-NEXT: [[TMP2:%.*]] = sub nsw i32 [[TMP1]], [[B]]
; TUNIT-NEXT: ret i32 [[TMP2]]
;
; CGSCC-LABEL: define {{[^@]+}}@test1
; CGSCC-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR1:[0-9]+]] {
; CGSCC-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]])
; CGSCC-NEXT: [[TMP2:%.*]] = sub nsw i32 [[TMP1]], [[B]]
; CGSCC-NEXT: ret i32 [[TMP2]]
;
%1 = call i32 @test_range(i32 %unknown)
%2 = sub nsw i32 %1, %b
ret i32 %2
}
define i32 @test2(i32 %unknown, i32 %b) {
; TUNIT-LABEL: define {{[^@]+}}@test2
; TUNIT-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR0]] {
; TUNIT-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]])
; TUNIT-NEXT: [[TMP2:%.*]] = add nsw i32 [[TMP1]], [[B]]
; TUNIT-NEXT: ret i32 [[TMP2]]
;
; CGSCC-LABEL: define {{[^@]+}}@test2
; CGSCC-SAME: (i32 [[UNKNOWN:%.*]], i32 [[B:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: [[TMP1:%.*]] = call i32 @test_range(i32 [[UNKNOWN]])
; CGSCC-NEXT: [[TMP2:%.*]] = add nsw i32 [[TMP1]], [[B]]
; CGSCC-NEXT: ret i32 [[TMP2]]
;
%1 = call i32 @test_range(i32 %unknown)
%2 = add nsw i32 %1, %b
ret i32 %2
}
; Positive checks
; FIXME: AAValueSimplify preserves the context but simplifies to a value in the other function, I think.
; Either way, as we settle on the new AAValueSimplifyReturned scheme that replaces AAReturnedValues
; we need to look into this again. For the purpose of making some progress we take this regression
; for now, call site contexts are not on by default anyway (yet).
define i32 @test1_pcheck(i32 %unknown) {
; TUNIT-LABEL: define {{[^@]+}}@test1_pcheck
; TUNIT-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
; TUNIT-NEXT: [[TMP1:%.*]] = call i32 @test1(i32 [[UNKNOWN]], i32 noundef 20)
; TUNIT-NEXT: [[TMP2:%.*]] = icmp sle i32 [[TMP1]], 90
; TUNIT-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; TUNIT-NEXT: ret i32 [[TMP3]]
;
; CGSCC-LABEL: define {{[^@]+}}@test1_pcheck
; CGSCC-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: [[TMP1:%.*]] = call i32 @test1(i32 [[UNKNOWN]], i32 noundef 20)
; CGSCC-NEXT: [[TMP2:%.*]] = icmp sle i32 [[TMP1]], 90
; CGSCC-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; CGSCC-NEXT: ret i32 [[TMP3]]
;
%1 = call i32 @test1(i32 %unknown, i32 20)
%2 = icmp sle i32 %1, 90
%3 = zext i1 %2 to i32
ret i32 %3
}
define i32 @test2_pcheck(i32 %unknown) {
; TUNIT-LABEL: define {{[^@]+}}@test2_pcheck
; TUNIT-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
; TUNIT-NEXT: [[TMP1:%.*]] = call i32 @test2(i32 [[UNKNOWN]], i32 noundef 20)
; TUNIT-NEXT: [[TMP2:%.*]] = icmp sge i32 [[TMP1]], 20
; TUNIT-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; TUNIT-NEXT: ret i32 [[TMP3]]
;
; CGSCC-LABEL: define {{[^@]+}}@test2_pcheck
; CGSCC-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: [[TMP1:%.*]] = call i32 @test2(i32 [[UNKNOWN]], i32 noundef 20)
; CGSCC-NEXT: [[TMP2:%.*]] = icmp sge i32 [[TMP1]], 20
; CGSCC-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; CGSCC-NEXT: ret i32 [[TMP3]]
;
%1 = call i32 @test2(i32 %unknown, i32 20)
%2 = icmp sge i32 %1, 20
%3 = zext i1 %2 to i32
ret i32 %3
}
; Negative checks
define i32 @test1_ncheck(i32 %unknown) {
; TUNIT-LABEL: define {{[^@]+}}@test1_ncheck
; TUNIT-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
; TUNIT-NEXT: [[TMP1:%.*]] = call i32 @test1(i32 [[UNKNOWN]], i32 noundef 20)
; TUNIT-NEXT: [[TMP2:%.*]] = icmp sle i32 [[TMP1]], 10
; TUNIT-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; TUNIT-NEXT: ret i32 [[TMP3]]
;
; CGSCC-LABEL: define {{[^@]+}}@test1_ncheck
; CGSCC-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: [[TMP1:%.*]] = call i32 @test1(i32 [[UNKNOWN]], i32 noundef 20)
; CGSCC-NEXT: [[TMP2:%.*]] = icmp sle i32 [[TMP1]], 10
; CGSCC-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; CGSCC-NEXT: ret i32 [[TMP3]]
;
%1 = call i32 @test1(i32 %unknown, i32 20)
%2 = icmp sle i32 %1, 10
%3 = zext i1 %2 to i32
ret i32 %3
}
define i32 @test2_ncheck(i32 %unknown) {
; TUNIT-LABEL: define {{[^@]+}}@test2_ncheck
; TUNIT-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR0]] {
; TUNIT-NEXT: [[TMP1:%.*]] = call i32 @test2(i32 [[UNKNOWN]], i32 noundef 20)
; TUNIT-NEXT: [[TMP2:%.*]] = icmp sge i32 [[TMP1]], 30
; TUNIT-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; TUNIT-NEXT: ret i32 [[TMP3]]
;
; CGSCC-LABEL: define {{[^@]+}}@test2_ncheck
; CGSCC-SAME: (i32 [[UNKNOWN:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: [[TMP1:%.*]] = call i32 @test2(i32 [[UNKNOWN]], i32 noundef 20)
; CGSCC-NEXT: [[TMP2:%.*]] = icmp sge i32 [[TMP1]], 30
; CGSCC-NEXT: [[TMP3:%.*]] = zext i1 [[TMP2]] to i32
; CGSCC-NEXT: ret i32 [[TMP3]]
;
%1 = call i32 @test2(i32 %unknown, i32 20)
%2 = icmp sge i32 %1, 30
%3 = zext i1 %2 to i32
ret i32 %3
}
;.
; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
; TUNIT: attributes #[[ATTR1:[0-9]+]] = { nofree nosync nounwind willreturn }
;.
; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(none) }
; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(none) }
; CGSCC: attributes #[[ATTR2:[0-9]+]] = { willreturn }
;.
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