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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-attributes --check-globals
; RUN: opt -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=6 -S < %s | FileCheck %s --check-prefixes=CHECK,TUNIT
; RUN: opt -aa-pipeline=basic-aa -passes=attributor-cgscc -attributor-manifest-internal -attributor-annotate-decl-cs -S < %s | FileCheck %s --check-prefixes=CHECK,CGSCC
; PR36543
; Don't promote arguments of musttail callee
%T = type { i32, i32, i32, i32 }
define internal i32 @test(ptr %p) {
; CHECK: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
; CHECK-LABEL: define {{[^@]+}}@test
; CHECK-SAME: (ptr nocapture nofree readonly [[P:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT: [[A_GEP:%.*]] = getelementptr [[T:%.*]], ptr [[P]], i64 0, i32 3
; CHECK-NEXT: [[B_GEP:%.*]] = getelementptr [[T]], ptr [[P]], i64 0, i32 2
; CHECK-NEXT: [[A:%.*]] = load i32, ptr [[A_GEP]], align 4
; CHECK-NEXT: [[B:%.*]] = load i32, ptr [[B_GEP]], align 4
; CHECK-NEXT: [[V:%.*]] = add i32 [[A]], [[B]]
; CHECK-NEXT: ret i32 [[V]]
;
%a.gep = getelementptr %T, %T* %p, i64 0, i32 3
%b.gep = getelementptr %T, ptr %p, i64 0, i32 2
%a = load i32, ptr %a.gep
%b = load i32, ptr %b.gep
%v = add i32 %a, %b
ret i32 %v
}
define i32 @caller(ptr %p) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: read)
; TUNIT-LABEL: define {{[^@]+}}@caller
; TUNIT-SAME: (ptr nocapture nofree readonly [[P:%.*]]) #[[ATTR0]] {
; TUNIT-NEXT: [[V:%.*]] = musttail call i32 @test(ptr nocapture nofree readonly [[P]]) #[[ATTR4:[0-9]+]]
; TUNIT-NEXT: ret i32 [[V]]
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
; CGSCC-LABEL: define {{[^@]+}}@caller
; CGSCC-SAME: (ptr nocapture nofree readonly [[P:%.*]]) #[[ATTR1:[0-9]+]] {
; CGSCC-NEXT: [[V:%.*]] = musttail call i32 @test(ptr nocapture nofree readonly [[P]]) #[[ATTR5:[0-9]+]]
; CGSCC-NEXT: ret i32 [[V]]
;
%v = musttail call i32 @test(%T* %p)
ret i32 %v
}
; Don't promote arguments of musttail caller
define i32 @foo(ptr %p, i32 %v) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@foo
; TUNIT-SAME: (ptr nocapture nofree readnone [[P:%.*]], i32 [[V:%.*]]) #[[ATTR1:[0-9]+]] {
; TUNIT-NEXT: ret i32 0
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; CGSCC-LABEL: define {{[^@]+}}@foo
; CGSCC-SAME: (ptr nocapture nofree readnone [[P:%.*]], i32 [[V:%.*]]) #[[ATTR2:[0-9]+]] {
; CGSCC-NEXT: ret i32 0
;
ret i32 0
}
define internal i32 @test2(ptr %p, i32 %p2) {
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
; CGSCC-LABEL: define {{[^@]+}}@test2
; CGSCC-SAME: (ptr nocapture nofree readonly [[P:%.*]], i32 [[P2:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: [[A_GEP:%.*]] = getelementptr [[T:%.*]], ptr [[P]], i64 0, i32 3
; CGSCC-NEXT: [[B_GEP:%.*]] = getelementptr [[T]], ptr [[P]], i64 0, i32 2
; CGSCC-NEXT: [[A:%.*]] = load i32, ptr [[A_GEP]], align 4
; CGSCC-NEXT: [[B:%.*]] = load i32, ptr [[B_GEP]], align 4
; CGSCC-NEXT: [[V:%.*]] = add i32 [[A]], [[B]]
; CGSCC-NEXT: [[CA:%.*]] = musttail call noundef i32 @foo(ptr undef, i32 [[V]]) #[[ATTR5]]
; CGSCC-NEXT: ret i32 [[CA]]
;
%a.gep = getelementptr %T, %T* %p, i64 0, i32 3
%b.gep = getelementptr %T, ptr %p, i64 0, i32 2
%a = load i32, ptr %a.gep
%b = load i32, ptr %b.gep
%v = add i32 %a, %b
%ca = musttail call i32 @foo(ptr undef, i32 %v)
ret i32 %ca
}
define i32 @caller2(ptr %g) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(none)
; TUNIT-LABEL: define {{[^@]+}}@caller2
; TUNIT-SAME: (ptr nocapture nofree readnone [[G:%.*]]) #[[ATTR1]] {
; TUNIT-NEXT: ret i32 0
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: read)
; CGSCC-LABEL: define {{[^@]+}}@caller2
; CGSCC-SAME: (ptr nocapture nofree readonly align 4 [[G:%.*]]) #[[ATTR1]] {
; CGSCC-NEXT: [[V:%.*]] = call noundef i32 @test2(ptr nocapture nofree readonly [[G]], i32 noundef 0) #[[ATTR5]]
; CGSCC-NEXT: ret i32 [[V]]
;
%v = call i32 @test2(%T* %g, i32 0)
ret i32 %v
}
; In the version above we can remove the call to foo completely.
; In the version below we keep the call and verify the return value
; is kept as well.
define i32 @bar(ptr %p, i32 %v) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; TUNIT-LABEL: define {{[^@]+}}@bar
; TUNIT-SAME: (ptr nocapture nofree nonnull writeonly dereferenceable(4) [[P:%.*]], i32 [[V:%.*]]) #[[ATTR2:[0-9]+]] {
; TUNIT-NEXT: store i32 [[V]], ptr [[P]], align 4
; TUNIT-NEXT: ret i32 0
;
; CGSCC: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: write)
; CGSCC-LABEL: define {{[^@]+}}@bar
; CGSCC-SAME: (ptr nocapture nofree nonnull writeonly dereferenceable(4) [[P:%.*]], i32 [[V:%.*]]) #[[ATTR3:[0-9]+]] {
; CGSCC-NEXT: store i32 [[V]], ptr [[P]], align 4
; CGSCC-NEXT: ret i32 0
;
%i32ptr = getelementptr %T, %T* %p, i64 0, i32 0
store i32 %v, ptr %i32ptr
ret i32 0
}
define internal i32 @test2b(ptr %p, i32 %p2) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; TUNIT-LABEL: define {{[^@]+}}@test2b
; TUNIT-SAME: (ptr nocapture nofree readonly [[P:%.*]], i32 [[P2:%.*]]) #[[ATTR3:[0-9]+]] {
; TUNIT-NEXT: [[A_GEP:%.*]] = getelementptr [[T:%.*]], ptr [[P]], i64 0, i32 3
; TUNIT-NEXT: [[B_GEP:%.*]] = getelementptr [[T]], ptr [[P]], i64 0, i32 2
; TUNIT-NEXT: [[A:%.*]] = load i32, ptr [[A_GEP]], align 4
; TUNIT-NEXT: [[B:%.*]] = load i32, ptr [[B_GEP]], align 4
; TUNIT-NEXT: [[V:%.*]] = add i32 [[A]], [[B]]
; TUNIT-NEXT: [[CA:%.*]] = musttail call noundef i32 @bar(ptr undef, i32 [[V]]) #[[ATTR4]]
; TUNIT-NEXT: ret i32 [[CA]]
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
; CGSCC-LABEL: define {{[^@]+}}@test2b
; CGSCC-SAME: (ptr nocapture nofree readonly [[P:%.*]], i32 [[P2:%.*]]) #[[ATTR4:[0-9]+]] {
; CGSCC-NEXT: [[A_GEP:%.*]] = getelementptr [[T:%.*]], ptr [[P]], i64 0, i32 3
; CGSCC-NEXT: [[B_GEP:%.*]] = getelementptr [[T]], ptr [[P]], i64 0, i32 2
; CGSCC-NEXT: [[A:%.*]] = load i32, ptr [[A_GEP]], align 4
; CGSCC-NEXT: [[B:%.*]] = load i32, ptr [[B_GEP]], align 4
; CGSCC-NEXT: [[V:%.*]] = add i32 [[A]], [[B]]
; CGSCC-NEXT: [[CA:%.*]] = musttail call noundef i32 @bar(ptr undef, i32 [[V]]) #[[ATTR6:[0-9]+]]
; CGSCC-NEXT: ret i32 [[CA]]
;
%a.gep = getelementptr %T, %T* %p, i64 0, i32 3
%b.gep = getelementptr %T, ptr %p, i64 0, i32 2
%a = load i32, ptr %a.gep
%b = load i32, ptr %b.gep
%v = add i32 %a, %b
%ca = musttail call i32 @bar(ptr undef, i32 %v)
ret i32 %ca
}
define i32 @caller2b(ptr %g) {
; TUNIT: Function Attrs: nofree norecurse nosync nounwind willreturn memory(argmem: readwrite)
; TUNIT-LABEL: define {{[^@]+}}@caller2b
; TUNIT-SAME: (ptr nocapture nofree readonly [[G:%.*]]) #[[ATTR3]] {
; TUNIT-NEXT: [[V:%.*]] = call noundef i32 @test2b(ptr nocapture nofree readonly [[G]], i32 undef) #[[ATTR4]]
; TUNIT-NEXT: ret i32 [[V]]
;
; CGSCC: Function Attrs: nofree nosync nounwind willreturn memory(argmem: readwrite)
; CGSCC-LABEL: define {{[^@]+}}@caller2b
; CGSCC-SAME: (ptr nocapture nofree readonly align 4 [[G:%.*]]) #[[ATTR4]] {
; CGSCC-NEXT: [[V:%.*]] = call noundef i32 @test2b(ptr nocapture nofree readonly [[G]], i32 noundef 0) #[[ATTR7:[0-9]+]]
; CGSCC-NEXT: ret i32 [[V]]
;
%v = call i32 @test2b(%T* %g, i32 0)
ret i32 %v
}
;.
; TUNIT: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
; TUNIT: attributes #[[ATTR1]] = { nofree norecurse nosync nounwind willreturn memory(none) }
; TUNIT: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
; TUNIT: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) }
; TUNIT: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn }
;.
; CGSCC: attributes #[[ATTR0]] = { nofree norecurse nosync nounwind willreturn memory(argmem: read) }
; CGSCC: attributes #[[ATTR1]] = { nofree nosync nounwind willreturn memory(argmem: read) }
; CGSCC: attributes #[[ATTR2]] = { nofree norecurse nosync nounwind willreturn memory(none) }
; CGSCC: attributes #[[ATTR3]] = { nofree norecurse nosync nounwind willreturn memory(argmem: write) }
; CGSCC: attributes #[[ATTR4]] = { nofree nosync nounwind willreturn memory(argmem: readwrite) }
; CGSCC: attributes #[[ATTR5]] = { willreturn }
; CGSCC: attributes #[[ATTR6]] = { nounwind willreturn memory(write) }
; CGSCC: attributes #[[ATTR7]] = { nounwind willreturn }
;.
|
