derek.holloway
7502bf64a4
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141 lines
6.1 KiB
LLVM
141 lines
6.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -passes='cgscc(inline)' -pass-remarks=inline -pass-remarks-missed=inline < %s 2> %t.err | FileCheck %s
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; RUN: FileCheck -implicit-check-not=remark -check-prefix=REMARK %s < %t.err
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; REMARK: remark: <unknown>:0:0: 'callee_with_gc' inlined into 'caller_no_gc'
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; REMARK-NEXT: remark: <unknown>:0:0: 'callee_with_gc' inlined into 'caller_same_gc'
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; REMARK-NEXT: remark: <unknown>:0:0: 'callee_with_gc' is not inlined into 'caller_incompatible_gc': incompatible GC
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; REMARK-NEXT: remark: <unknown>:0:0: 'callee_with_gc' inlined into 'caller_inline_first_caller'
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; REMARK-NEXT: remark: <unknown>:0:0: 'callee_with_other_gc' is not inlined into 'caller_inline_first_caller': incompatible GC
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; REMARK-NEXT: remark: <unknown>:0:0: 'callee_with_gc' inlined into 'caller_inline_second_caller'
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; REMARK-NEXT: remark: <unknown>:0:0: 'callee_with_other_gc' is not inlined into 'caller_inline_second_caller': incompatible GC
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%IntArray = type { i32, [0 x ptr] }
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; Callee gc propagates to the caller
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define i32 @caller_no_gc() {
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; CHECK-LABEL: define i32 @caller_no_gc() gc "example" {
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; CHECK-NEXT: [[ROOT_I:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: call void @llvm.gcroot(ptr [[ROOT_I]], ptr null)
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; CHECK-NEXT: [[OBJ_I:%.*]] = call ptr @h()
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; CHECK-NEXT: store ptr [[OBJ_I]], ptr [[ROOT_I]], align 8
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; CHECK-NEXT: [[LENGTH_I:%.*]] = load i32, ptr [[OBJ_I]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: ret i32 [[LENGTH_I]]
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;
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%x = call i32 @callee_with_gc()
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ret i32 %x
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}
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; Inline of matching gc allowed.
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define i32 @caller_same_gc() gc "example" {
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; CHECK-LABEL: define i32 @caller_same_gc() gc "example" {
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; CHECK-NEXT: [[ROOT_I:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: call void @llvm.gcroot(ptr [[ROOT_I]], ptr null)
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; CHECK-NEXT: [[OBJ_I:%.*]] = call ptr @h()
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; CHECK-NEXT: store ptr [[OBJ_I]], ptr [[ROOT_I]], align 8
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; CHECK-NEXT: [[LENGTH_I:%.*]] = load i32, ptr [[OBJ_I]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: ret i32 [[LENGTH_I]]
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;
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%x = call i32 @callee_with_gc()
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ret i32 %x
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}
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; Reject inline with mismatched gc
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define i32 @caller_incompatible_gc() gc "incompatible" {
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; CHECK-LABEL: define i32 @caller_incompatible_gc() gc "incompatible" {
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; CHECK-NEXT: [[X:%.*]] = call i32 @callee_with_gc()
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; CHECK-NEXT: ret i32 [[X]]
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;
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%x = call i32 @callee_with_gc()
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ret i32 %x
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}
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define i32 @callee_with_gc() gc "example" {
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; CHECK-LABEL: define i32 @callee_with_gc() gc "example" {
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; CHECK-NEXT: [[ROOT:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @llvm.gcroot(ptr [[ROOT]], ptr null)
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; CHECK-NEXT: [[OBJ:%.*]] = call ptr @h()
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; CHECK-NEXT: store ptr [[OBJ]], ptr [[ROOT]], align 8
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; CHECK-NEXT: [[LENGTH_PTR:%.*]] = getelementptr [[INTARRAY:%.*]], ptr [[OBJ]], i32 0, i32 0
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; CHECK-NEXT: [[LENGTH:%.*]] = load i32, ptr [[LENGTH_PTR]], align 4
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; CHECK-NEXT: ret i32 [[LENGTH]]
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;
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%root = alloca ptr, align 8
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call void @llvm.gcroot(ptr %root, ptr null)
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%obj = call ptr @h()
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store ptr %obj, ptr %root, align 8
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%Length.ptr = getelementptr %IntArray, ptr %obj, i32 0, i32 0
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%Length = load i32, ptr %Length.ptr, align 4
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ret i32 %Length
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}
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define i32 @callee_with_other_gc() gc "other-example" {
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; CHECK-LABEL: define i32 @callee_with_other_gc() gc "other-example" {
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; CHECK-NEXT: [[ROOT:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @llvm.gcroot(ptr [[ROOT]], ptr null)
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; CHECK-NEXT: [[OBJ:%.*]] = call ptr @h()
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; CHECK-NEXT: store ptr [[OBJ]], ptr [[ROOT]], align 8
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; CHECK-NEXT: [[LENGTH_PTR:%.*]] = getelementptr [[INTARRAY:%.*]], ptr [[OBJ]], i32 0, i32 0
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; CHECK-NEXT: [[LENGTH:%.*]] = load i32, ptr [[LENGTH_PTR]], align 4
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; CHECK-NEXT: ret i32 [[LENGTH]]
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;
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%root = alloca ptr, align 8
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call void @llvm.gcroot(ptr %root, ptr null)
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%obj = call ptr @h()
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store ptr %obj, ptr %root, align 8
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%Length.ptr = getelementptr %IntArray, ptr %obj, i32 0, i32 0
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%Length = load i32, ptr %Length.ptr, align 4
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ret i32 %Length
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}
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; After inlining the first call, inline is blocked of the second call
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; since the gc type propagates to the caller.
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define i32 @caller_inline_first_caller() {
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; CHECK-LABEL: define i32 @caller_inline_first_caller() gc "example" {
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; CHECK-NEXT: [[ROOT_I:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: call void @llvm.gcroot(ptr [[ROOT_I]], ptr null)
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; CHECK-NEXT: [[OBJ_I:%.*]] = call ptr @h()
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; CHECK-NEXT: store ptr [[OBJ_I]], ptr [[ROOT_I]], align 8
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; CHECK-NEXT: [[LENGTH_I:%.*]] = load i32, ptr [[OBJ_I]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: [[Y:%.*]] = call i32 @callee_with_other_gc()
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; CHECK-NEXT: [[ADD:%.*]] = add i32 [[LENGTH_I]], [[Y]]
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; CHECK-NEXT: ret i32 [[ADD]]
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;
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%x = call i32 @callee_with_gc()
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%y = call i32 @callee_with_other_gc()
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%add = add i32 %x, %y
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ret i32 %add
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}
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; We can't inline the first call due to the incompatible gc, but can
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; inline the second
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define i32 @caller_inline_second_caller() gc "example" {
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; CHECK-LABEL: define i32 @caller_inline_second_caller() gc "example" {
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; CHECK-NEXT: [[ROOT_I:%.*]] = alloca ptr, align 8
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: call void @llvm.gcroot(ptr [[ROOT_I]], ptr null)
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; CHECK-NEXT: [[OBJ_I:%.*]] = call ptr @h()
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; CHECK-NEXT: store ptr [[OBJ_I]], ptr [[ROOT_I]], align 8
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; CHECK-NEXT: [[LENGTH_I:%.*]] = load i32, ptr [[OBJ_I]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[ROOT_I]])
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; CHECK-NEXT: [[Y:%.*]] = call i32 @callee_with_other_gc()
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; CHECK-NEXT: [[ADD:%.*]] = add i32 [[LENGTH_I]], [[Y]]
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; CHECK-NEXT: ret i32 [[ADD]]
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;
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%x = call i32 @callee_with_gc()
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%y = call i32 @callee_with_other_gc()
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%add = add i32 %x, %y
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ret i32 %add
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}
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declare ptr @h()
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declare void @llvm.gcroot(ptr, ptr) #0
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attributes #0 = { nounwind }
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