8c1bd67dee
This is the first step in being able to track the total profiled sizes of allocations successfully marked as cold. Under a new option -memprof-report-hinted-sizes: - For unambiguous (non-context-sensitive) allocations, print the profiled size and the allocation coldness, along with a hash of the allocation's location (to allow for deduplication across modules or inline instances). - For context sensitive allocations, add the size as a 3rd operand on the MIB metadata. A follow on patch will propagate this through to the thin link where the sizes will be reported for each context after cloning.
56 lines
1.8 KiB
LLVM
56 lines
1.8 KiB
LLVM
; Test that incorrect memprof and callsite metadata fail verification.
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; RUN: not llvm-as -disable-output < %s 2>&1 | FileCheck %s
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define ptr @test1() {
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entry:
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%call1 = call noalias dereferenceable_or_null(40) ptr @malloc(i64 noundef 40), !memprof !0
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%call2 = call noalias dereferenceable_or_null(40) ptr @malloc(i64 noundef 40), !memprof !1
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%call3 = call noalias dereferenceable_or_null(40) ptr @malloc(i64 noundef 40), !memprof !3
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%call4 = call noalias dereferenceable_or_null(40) ptr @malloc(i64 noundef 40), !memprof !5
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%call5 = call noalias dereferenceable_or_null(40) ptr @malloc(i64 noundef 40), !memprof !7, !callsite !9
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ret ptr %call5
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}
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define ptr @test2() {
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entry:
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%call = call noundef ptr @test1(), !callsite !10
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ret ptr %call
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}
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define ptr @test3() {
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entry:
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%call = call noundef ptr @test2(), !callsite !11
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ret ptr %call
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}
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define void @wronginsttype() {
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%1 = add i32 0, 1, !memprof !0, !callsite !9
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ret void
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}
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declare dso_local noalias noundef ptr @malloc(i64 noundef)
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; CHECK: !memprof annotations should have at least 1 metadata operand (MemInfoBlock)
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!0 = !{}
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!1 = !{!2}
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; CHECK: !memprof MemInfoBlock first operand should not be null
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!2 = !{null, !"cold"}
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!3 = !{!4}
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; CHECK: !memprof MemInfoBlock first operand should be an MDNode
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!4 = !{i64 0, !"cold"}
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!5 = !{!6}
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; CHECK: Each !memprof MemInfoBlock should have at least 2 operands
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!6 = !{i64 0}
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!7 = !{!8}
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; CHECK: call stack metadata should have at least 1 operand
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; CHECK: Not all !memprof MemInfoBlock operands 1 to N-1 are MDString
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!8 = !{!0, !"default", i64 0, i64 5}
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!9 = !{i64 123}
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; CHECK: call stack metadata operand should be constant integer
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!10 = !{!"wrongtype"}
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!11 = !{i64 789, i64 678}
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; Errors from annotating incorrect instruction type in @wronginsttype.
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; CHECK: !memprof metadata should only exist on calls
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; CHECK: !callsite metadata should only exist on calls
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