derek.holloway
7502bf64a4
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57 lines
2.8 KiB
LLVM
57 lines
2.8 KiB
LLVM
; Test basic memory profiler instrumentation with histograms.
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;
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; RUN: opt < %s -passes='function(memprof),memprof-module' -memprof-histogram -S | FileCheck --check-prefixes=CHECK,CHECK-S3 %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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target triple = "x86_64-unknown-linux-gnu"
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; CHECK: @llvm.used = appending global [1 x ptr] [ptr @memprof.module_ctor]
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; CHECK: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 1, ptr @memprof.module_ctor, ptr null }]
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define i32 @test_load(ptr %a) {
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entry:
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%tmp1 = load i32, ptr %a, align 4
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ret i32 %tmp1
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}
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; CHECK-LABEL: @test_load
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; CHECK: %[[SHADOW_OFFSET:[^ ]*]] = load i64, ptr @__memprof_shadow_memory_dynamic_address
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; CHECK-NEXT: %[[LOAD_ADDR:[^ ]*]] = ptrtoint ptr %a to i64
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; CHECK-NEXT: %[[MASKED_ADDR:[^ ]*]] = and i64 %[[LOAD_ADDR]], -8
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; CHECK-S3-NEXT: %[[SHIFTED_ADDR:[^ ]*]] = lshr i64 %[[MASKED_ADDR]], 3
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; CHECK-NEXT: add i64 %[[SHIFTED_ADDR]], %[[SHADOW_OFFSET]]
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; CHECK-NEXT: %[[LOAD_SHADOW_PTR:[^ ]*]] = inttoptr
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; CHECK-NEXT: %[[LOAD_SHADOW:[^ ]*]] = load i8, ptr %[[LOAD_SHADOW_PTR]]
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; CHECK-NEXT: %[[ICMP_MAX_COUNT:[^ ]*]] = icmp ult i8 %[[LOAD_SHADOW]], -1
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; CHECK-NEXT: br i1 %[[ICMP_MAX_COUNT]], label %[[INC_LABEL:[^ ]*]], label %[[ELSE_LABEL:[^ ]*]]
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; CHECK: [[INC_LABEL]]:
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; CHECK-NEXT: %[[NEW_SHADOW:[^ ]*]] = add i8 %[[LOAD_SHADOW]], 1
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; CHECK-NEXT: store i8 %[[NEW_SHADOW]], ptr %[[LOAD_SHADOW_PTR]]
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; CHECK-NEXT: br label %[[ELSE_LABEL]]
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; The actual load.
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; CHECK: [[ELSE_LABEL]]:
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; CHECK-NEXT: %tmp1 = load i32, ptr %a
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; CHECK-NEXT: ret i32 %tmp1
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define void @test_store(ptr %a) {
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entry:
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store i32 42, ptr %a, align 4
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ret void
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}
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; CHECK-LABEL: @test_store
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; CHECK: %[[SHADOW_OFFSET:[^ ]*]] = load i64, ptr @__memprof_shadow_memory_dynamic_address
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; CHECK-NEXT: %[[LOAD_ADDR:[^ ]*]] = ptrtoint ptr %a to i64
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; CHECK-NEXT: %[[MASKED_ADDR:[^ ]*]] = and i64 %[[LOAD_ADDR]], -8
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; CHECK-S3-NEXT: %[[SHIFTED_ADDR:[^ ]*]] = lshr i64 %[[MASKED_ADDR]], 3
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; CHECK-NEXT: add i64 %[[SHIFTED_ADDR]], %[[SHADOW_OFFSET]]
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; CHECK-NEXT: %[[STORE_SHADOW_PTR:[^ ]*]] = inttoptr
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; CHECK-NEXT: %[[STORE_SHADOW:[^ ]*]] = load i8, ptr %[[STORE_SHADOW_PTR]]
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; CHECK-NEXT: %[[ICMP_MAX_COUNT:[^ ]*]] = icmp ult i8 %[[STORE_SHADOW]], -1
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; CHECK-NEXT: br i1 %[[ICMP_MAX_COUNT]], label %[[INC_LABEL:[^ ]*]], label %[[ELSE_LABEL:[^ ]*]]
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; CHECK: [[INC_LABEL]]:
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; CHECK-NEXT: %[[NEW_SHADOW:[^ ]*]] = add i8 %[[STORE_SHADOW]], 1
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; CHECK-NEXT: store i8 %[[NEW_SHADOW]], ptr %[[STORE_SHADOW_PTR]]
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; CHECK-NEXT: br label %[[ELSE_LABEL]]
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; The actual store.
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; CHECK: [[ELSE_LABEL]]:
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; CHECK-NEXT: store i32 42, ptr %a, align 4
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; CHECK-NEXT: ret void |