369930bc20
If an attribute is implied by the IR we do not (always) create an AA anymore. To keep test coverage, and given the lack of a good heuristic to decide otherwise, we will now also manifest such attributes.
113 lines
4.3 KiB
LLVM
113 lines
4.3 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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define void @f() {
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; TUNIT-LABEL: define {{[^@]+}}@f() {
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; TUNIT-NEXT: entry:
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; TUNIT-NEXT: [[A:%.*]] = alloca i32, align 1
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; TUNIT-NEXT: [[TMP0:%.*]] = load i32, ptr [[A]], align 1
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; TUNIT-NEXT: call void @g(i32 [[TMP0]])
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; TUNIT-NEXT: ret void
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;
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; CGSCC-LABEL: define {{[^@]+}}@f() {
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; CGSCC-NEXT: entry:
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; CGSCC-NEXT: call void @g(i32 undef)
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; CGSCC-NEXT: ret void
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;
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entry:
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%a = alloca i32, align 1
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call void @g(ptr %a)
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ret void
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}
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define internal void @g(ptr %a) {
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; CHECK-LABEL: define {{[^@]+}}@g
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; CHECK-SAME: (i32 [[TMP0:%.*]]) {
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; CHECK-NEXT: [[A_PRIV:%.*]] = alloca i32, align 4
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; CHECK-NEXT: store i32 [[TMP0]], ptr [[A_PRIV]], align 4
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; CHECK-NEXT: [[AA:%.*]] = load i32, ptr [[A_PRIV]], align 1
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; CHECK-NEXT: call void @z(i32 [[AA]])
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; CHECK-NEXT: ret void
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;
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%aa = load i32, ptr %a, align 1
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call void @z(i32 %aa)
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ret void
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}
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declare void @z(i32)
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; Test2
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; Different alignemnt privatizable arguments
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define internal i32 @test(ptr %X, ptr %Y) {
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; CGSCC: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: read)
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; CGSCC-LABEL: define {{[^@]+}}@test
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; CGSCC-SAME: (ptr nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[X:%.*]], i64 [[TMP0:%.*]]) #[[ATTR0:[0-9]+]] {
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; CGSCC-NEXT: [[Y_PRIV:%.*]] = alloca i64, align 8
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; CGSCC-NEXT: store i64 [[TMP0]], ptr [[Y_PRIV]], align 4
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; CGSCC-NEXT: [[A:%.*]] = load i32, ptr [[X]], align 4
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; CGSCC-NEXT: [[B:%.*]] = load i64, ptr [[Y_PRIV]], align 8
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; CGSCC-NEXT: [[C:%.*]] = add i32 [[A]], 1
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; CGSCC-NEXT: [[D:%.*]] = add i64 [[B]], 1
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; CGSCC-NEXT: [[COND:%.*]] = icmp sgt i64 [[D]], -1
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; CGSCC-NEXT: br i1 [[COND]], label [[RETURN1:%.*]], label [[RETURN2:%.*]]
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; CGSCC: Return1:
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; CGSCC-NEXT: ret i32 [[C]]
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; CGSCC: Return2:
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; CGSCC-NEXT: ret i32 [[A]]
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;
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%A = load i32, ptr %X
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%B = load i64, ptr %Y
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%C = add i32 %A, 1
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%D = add i64 %B, 1
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%cond = icmp sgt i64 %D, -1
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br i1 %cond, label %Return1, label %Return2
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Return1:
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ret i32 %C
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Return2:
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ret i32 %A
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}
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define internal i32 @caller(ptr %A) {
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; CGSCC: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(argmem: readwrite)
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; CGSCC-LABEL: define {{[^@]+}}@caller
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; CGSCC-SAME: (i32 [[TMP0:%.*]]) #[[ATTR1:[0-9]+]] {
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; CGSCC-NEXT: [[A_PRIV:%.*]] = alloca i32, align 4
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; CGSCC-NEXT: store i32 [[TMP0]], ptr [[A_PRIV]], align 4
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; CGSCC-NEXT: [[C:%.*]] = call i32 @test(ptr noalias nocapture nofree noundef nonnull readonly align 4 dereferenceable(4) [[A_PRIV]], i64 noundef 1) #[[ATTR3:[0-9]+]]
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; CGSCC-NEXT: ret i32 [[C]]
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;
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%B = alloca i64
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store i64 1, ptr %B
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%C = call i32 @test(ptr %A, ptr %B)
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ret i32 %C
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}
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define i32 @callercaller() {
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; TUNIT: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none)
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; TUNIT-LABEL: define {{[^@]+}}@callercaller
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; TUNIT-SAME: () #[[ATTR0:[0-9]+]] {
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; TUNIT-NEXT: [[B:%.*]] = alloca i32, align 4
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; TUNIT-NEXT: ret i32 3
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;
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; CGSCC: Function Attrs: mustprogress nofree nosync nounwind willreturn memory(none)
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; CGSCC-LABEL: define {{[^@]+}}@callercaller
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; CGSCC-SAME: () #[[ATTR2:[0-9]+]] {
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; CGSCC-NEXT: [[X:%.*]] = call i32 @caller(i32 noundef 2) #[[ATTR4:[0-9]+]]
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; CGSCC-NEXT: ret i32 [[X]]
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;
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%B = alloca i32
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store i32 2, ptr %B
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%X = call i32 @caller(ptr %B)
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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(none) }
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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: readwrite) }
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; CGSCC: attributes #[[ATTR2]] = { mustprogress nofree nosync nounwind willreturn memory(none) }
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; CGSCC: attributes #[[ATTR3]] = { nofree willreturn memory(read) }
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; CGSCC: attributes #[[ATTR4]] = { nofree nounwind willreturn }
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;.
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