62 lines
2.5 KiB
LLVM
62 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
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; RUN: opt -S -passes=ipsccp < %s | FileCheck %s
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@extern = global i32 0
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define i32 @call_assume_self_user() {
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; CHECK-LABEL: define {{[^@]+}}@call_assume_self_user() {
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @assume_self_user()
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; CHECK-NEXT: ret i32 0
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;
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%call = call i32 @assume_self_user()
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ret i32 0
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}
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; Function address direct user is assume-like intrinsic.
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;
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; Make sure this doesn't hit "We can only zap functions where all live
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; users have a concrete value"
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define internal i32 @assume_self_user() {
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; CHECK-LABEL: define {{[^@]+}}@assume_self_user() {
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; CHECK-NEXT: [[OBJSIZE:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr @assume_self_user, i1 false, i1 false, i1 false)
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; CHECK-NEXT: store i32 [[OBJSIZE]], ptr @extern, align 4
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; CHECK-NEXT: ret i32 undef
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;
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%objsize = call i32 @llvm.objectsize.i32.p0(ptr @assume_self_user, i1 false, i1 false, i1 false)
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store i32 %objsize, ptr @extern
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ret i32 0
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}
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; The objectsize call is an "assume like intrinsic" that can be
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; ignored for address taken purposes. The user of @constexpr_self_user
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; is a constant expression cast, so that the use call site does not
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; directly appear as a user.
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define i32 @callsite_with_returned() {
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; CHECK-LABEL: define {{[^@]+}}@callsite_with_returned() {
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; CHECK-NEXT: [[CALL:%.*]] = call addrspace(1) i32 @constexpr_self_user(i32 123)
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; CHECK-NEXT: ret i32 0
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;
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%call = call addrspace(1) i32 @constexpr_self_user(i32 returned 123)
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ret i32 0
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}
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; Has constexpr cast user in an assume-like intrinsic. Make sure we
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; don't assert on a cast<CallBase> for the user, and still remove
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; returned from the caller.
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define internal i32 @constexpr_self_user(i32 %arg0) addrspace(1) {
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; CHECK-LABEL: define {{[^@]+}}@constexpr_self_user
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; CHECK-SAME: (i32 [[ARG0:%.*]]) addrspace(1) {
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; CHECK-NEXT: [[OBJSIZE:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr addrspacecast (ptr addrspace(1) @constexpr_self_user to ptr), i1 false, i1 false, i1 false)
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; CHECK-NEXT: store i32 [[OBJSIZE]], ptr @extern, align 4
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; CHECK-NEXT: ret i32 undef
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;
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%objsize = call i32 @llvm.objectsize.i32.p0(ptr addrspacecast (ptr addrspace(1) @constexpr_self_user to ptr), i1 false, i1 false, i1 false)
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store i32 %objsize, ptr @extern
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ret i32 %arg0
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}
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declare i32 @llvm.objectsize.i32.p0(ptr, i1 immarg, i1 immarg, i1 immarg) #0
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attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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