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91 lines
2.5 KiB
LLVM
91 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -attributor -attributor-disable=false -attributor-annotate-decl-cs -attributor-max-iterations=5 -S < %s | FileCheck %s --check-prefix=CHECK
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;
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; When a function is marked `alwaysinline` and is able to be inlined,
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; we can IPO its boundaries
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; the function is not exactly defined, and marked alwaysinline and can be inlined,
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; so the function can be analyzed
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; CHECK: Function Attrs: alwaysinline nofree nosync nounwind readnone willreturn
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define linkonce void @inner1() alwaysinline {
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; CHECK-LABEL: @inner1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret void
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;
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entry:
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ret void
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}
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; CHECK: Function Attrs: nofree nosync nounwind readnone willreturn
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define void @outer1() {
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; CHECK-LABEL: @outer1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret void
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;
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entry:
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call void @inner1()
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ret void
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}
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; The function is not alwaysinline and is not exactly defined
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; so it will not be analyzed
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; CHECK-NOT: Function Attrs:
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define linkonce i32 @inner2() {
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; CHECK-LABEL: @inner2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: ret i32 1
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;
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entry:
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ret i32 1
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}
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; CHECK-NOT: Function Attrs
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define i32 @outer2() {
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; CHECK-LABEL: @outer2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[R:%.*]] = call i32 @inner2() #2
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; CHECK-NEXT: ret i32 [[R]]
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;
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entry:
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%r = call i32 @inner2() alwaysinline
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ret i32 %r
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}
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; This function cannot be inlined although it is marked alwaysinline
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; it is `unexactly defined` and alwaysinline but cannot be inlined.
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; so it will not be analyzed
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; CHECK: Function Attrs:
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; CHECK-NOT: nofree nosync nounwind readnone
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define linkonce i32 @inner3(i8* %addr) alwaysinline {
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; CHECK-LABEL: @inner3(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: indirectbr i8* [[ADDR:%.*]], [label [[ONE:%.*]], label %two]
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; CHECK: one:
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; CHECK-NEXT: ret i32 42
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; CHECK: two:
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; CHECK-NEXT: ret i32 44
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;
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entry:
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indirectbr i8* %addr, [ label %one, label %two ]
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one:
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ret i32 42
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two:
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ret i32 44
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}
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; CHECK-NOT: Function Attrs:
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define i32 @outer3(i32 %x) {
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; CHECK-LABEL: @outer3(
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[X:%.*]], 42
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; CHECK-NEXT: [[ADDR:%.*]] = select i1 [[CMP]], i8* blockaddress(@inner3, [[ONE:%.*]]), i8* blockaddress(@inner3, [[TWO:%.*]])
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @inner3(i8* [[ADDR]])
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%cmp = icmp slt i32 %x, 42
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%addr = select i1 %cmp, i8* blockaddress(@inner3, %one), i8* blockaddress(@inner3, %two)
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%call = call i32 @inner3(i8* %addr)
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ret i32 %call
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}
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