385 lines
14 KiB
LLVM
385 lines
14 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; Test a pile of objectsize bounds checking.
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; RUN: opt < %s -instcombine -S | FileCheck %s
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; We need target data to get the sizes of the arrays and structures.
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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@a = private global [60 x i8] zeroinitializer, align 1 ; <[60 x i8]*>
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@.str = private constant [8 x i8] c"abcdefg\00" ; <[8 x i8]*>
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define i32 @foo() nounwind {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: ret i32 60
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;
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%1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false, i1 false, i1 false)
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ret i32 %1
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}
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define i8* @bar() nounwind {
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; CHECK-LABEL: @bar(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[RETVAL:%.*]] = alloca i8*, align 4
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; CHECK-NEXT: br i1 true, label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
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; CHECK: cond.true:
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; CHECK-NEXT: [[TMP0:%.*]] = load i8*, i8** [[RETVAL]], align 4
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; CHECK-NEXT: ret i8* [[TMP0]]
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; CHECK: cond.false:
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; CHECK-NEXT: ret i8* undef
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;
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entry:
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%retval = alloca i8*
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%0 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false, i1 false, i1 false)
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%cmp = icmp ne i32 %0, -1
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br i1 %cmp, label %cond.true, label %cond.false
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cond.true:
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%1 = load i8*, i8** %retval
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ret i8* %1
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cond.false:
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%2 = load i8*, i8** %retval
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ret i8* %2
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}
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define i32 @f() nounwind {
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; CHECK-LABEL: @f(
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; CHECK-NEXT: ret i32 0
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;
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%1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr ([60 x i8], [60 x i8]* @a, i32 1, i32 0), i1 false, i1 false, i1 false)
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ret i32 %1
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}
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@window = external global [0 x i8]
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define i1 @baz() nounwind {
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; CHECK-LABEL: @baz(
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; CHECK-NEXT: [[TMP1:%.*]] = tail call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 0), i1 false, i1 false, i1 false)
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; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP1]], -1
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; CHECK-NEXT: ret i1 [[TMP2]]
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;
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%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 0), i1 false, i1 false, i1 false)
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%2 = icmp eq i32 %1, -1
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ret i1 %2
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}
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define void @test1(i8* %q, i32 %x) nounwind noinline {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 10), i1 false, i1 false, i1 false)
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; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i32 [[TMP0]], -1
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; CHECK-NEXT: br i1 [[TMP1]], label %"47", label %"46"
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; CHECK: "46":
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; CHECK-NEXT: unreachable
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; CHECK: "47":
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; CHECK-NEXT: unreachable
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;
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entry:
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%0 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 10), i1 false, i1 false, i1 false) ; <i64> [#uses=1]
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%1 = icmp eq i32 %0, -1 ; <i1> [#uses=1]
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br i1 %1, label %"47", label %"46"
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"46": ; preds = %entry
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unreachable
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"47": ; preds = %entry
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unreachable
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}
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@.str5 = private constant [9 x i32] [i32 97, i32 98, i32 99, i32 100, i32 0, i32
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101, i32 102, i32 103, i32 0], align 4
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define i32 @test2() nounwind {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: ret i32 34
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;
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%1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr (i8, i8* bitcast ([9 x i32]* @.str5 to i8*), i32 2), i1 false, i1 false, i1 false)
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ret i32 %1
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}
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; rdar://7674946
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@array = internal global [480 x float] zeroinitializer ; <[480 x float]*> [#uses=1]
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declare i8* @__memcpy_chk(i8*, i8*, i32, i32) nounwind
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declare i32 @llvm.objectsize.i32.p0i8(i8*, i1, i1, i1) nounwind readonly
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declare i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)*, i1, i1, i1) nounwind readonly
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declare i8* @__inline_memcpy_chk(i8*, i8*, i32) nounwind inlinehint
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define void @test3() nounwind {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br i1 undef, label [[BB11:%.*]], label [[BB12:%.*]]
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; CHECK: bb11:
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; CHECK-NEXT: unreachable
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; CHECK: bb12:
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; CHECK-NEXT: [[TMP0:%.*]] = call i8* @__inline_memcpy_chk(i8* bitcast (float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 1) to i8*), i8* undef, i32 512) [[ATTR3:#.*]]
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; CHECK-NEXT: unreachable
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;
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entry:
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br i1 undef, label %bb11, label %bb12
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bb11:
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%0 = getelementptr inbounds float, float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 128), i32 -127 ; <float*> [#uses=1]
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%1 = bitcast float* %0 to i8* ; <i8*> [#uses=1]
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%2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false, i1 false, i1 false) ; <i32> [#uses=1]
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%3 = call i8* @__memcpy_chk(i8* undef, i8* undef, i32 512, i32 %2) nounwind ; <i8*> [#uses=0]
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unreachable
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bb12:
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%4 = getelementptr inbounds float, float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 128), i32 -127 ; <float*> [#uses=1]
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%5 = bitcast float* %4 to i8* ; <i8*> [#uses=1]
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%6 = call i8* @__inline_memcpy_chk(i8* %5, i8* undef, i32 512) nounwind inlinehint ; <i8*> [#uses=0]
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unreachable
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}
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; rdar://7718857
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%struct.data = type { [100 x i32], [100 x i32], [1024 x i8] }
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define i32 @test4(i8** %esc) nounwind ssp {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = alloca [[STRUCT_DATA:%.*]], align 8
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; CHECK-NEXT: [[TMP1:%.*]] = bitcast %struct.data* [[TMP0]] to i8*
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; CHECK-NEXT: call void @llvm.memset.p0i8.i32(i8* nonnull align 8 dereferenceable(1824) [[TMP1]], i8 0, i32 1824, i1 false) [[ATTR0:#.*]]
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; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8** [[ESC:%.*]] to %struct.data**
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; CHECK-NEXT: store %struct.data* [[TMP0]], %struct.data** [[TMP2]], align 4
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%0 = alloca %struct.data, align 8
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%1 = bitcast %struct.data* %0 to i8*
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%2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false, i1 false, i1 false) nounwind
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%3 = call i8* @__memset_chk(i8* %1, i32 0, i32 1824, i32 %2) nounwind
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store i8* %1, i8** %esc
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ret i32 0
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}
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; rdar://7782496
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@s = external global i8*
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define i8* @test5(i32 %n) nounwind ssp {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) [[ATTR0]]
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; CHECK-NEXT: [[TMP1:%.*]] = load i8*, i8** @s, align 8
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; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* nonnull align 1 dereferenceable(10) [[TMP0]], i8* nonnull align 1 dereferenceable(10) [[TMP1]], i32 10, i1 false) [[ATTR0]]
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; CHECK-NEXT: ret i8* [[TMP0]]
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;
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entry:
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%0 = tail call noalias i8* @malloc(i32 20) nounwind
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%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false, i1 false, i1 false)
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%2 = load i8*, i8** @s, align 8
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%3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 10, i32 %1) nounwind
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ret i8* %0
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}
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define void @test6(i32 %n) nounwind ssp {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = tail call noalias dereferenceable_or_null(20) i8* @malloc(i32 20) [[ATTR0]]
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; CHECK-NEXT: [[TMP1:%.*]] = load i8*, i8** @s, align 8
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; CHECK-NEXT: [[TMP2:%.*]] = tail call i8* @__memcpy_chk(i8* [[TMP0]], i8* [[TMP1]], i32 30, i32 20) [[ATTR0]]
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; CHECK-NEXT: ret void
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;
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entry:
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%0 = tail call noalias i8* @malloc(i32 20) nounwind
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%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false, i1 false, i1 false)
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%2 = load i8*, i8** @s, align 8
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%3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 30, i32 %1) nounwind
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ret void
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}
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declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind
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declare noalias i8* @malloc(i32) nounwind
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define i32 @test7(i8** %esc) {
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: [[ALLOC:%.*]] = call noalias dereferenceable_or_null(48) i8* @malloc(i32 48) [[ATTR0]]
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; CHECK-NEXT: store i8* [[ALLOC]], i8** [[ESC:%.*]], align 4
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; CHECK-NEXT: ret i32 32
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;
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%alloc = call noalias i8* @malloc(i32 48) nounwind
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store i8* %alloc, i8** %esc
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%gep = getelementptr inbounds i8, i8* %alloc, i32 16
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%objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false, i1 false, i1 false) nounwind readonly
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ret i32 %objsize
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}
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declare noalias i8* @calloc(i32, i32) nounwind
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define i32 @test8(i8** %esc) {
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: [[ALLOC:%.*]] = call noalias dereferenceable_or_null(35) i8* @calloc(i32 5, i32 7) [[ATTR0]]
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; CHECK-NEXT: store i8* [[ALLOC]], i8** [[ESC:%.*]], align 4
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; CHECK-NEXT: ret i32 30
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;
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%alloc = call noalias i8* @calloc(i32 5, i32 7) nounwind
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store i8* %alloc, i8** %esc
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%gep = getelementptr inbounds i8, i8* %alloc, i32 5
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%objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false, i1 false, i1 false) nounwind readonly
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ret i32 %objsize
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}
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declare noalias i8* @strdup(i8* nocapture) nounwind
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declare noalias i8* @strndup(i8* nocapture, i32) nounwind
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define i32 @test9(i8** %esc) {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: [[CALL:%.*]] = tail call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0)) [[ATTR0]]
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; CHECK-NEXT: store i8* [[CALL]], i8** [[ESC:%.*]], align 8
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; CHECK-NEXT: ret i32 8
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;
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%call = tail call i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0)) nounwind
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store i8* %call, i8** %esc, align 8
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%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
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ret i32 %1
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}
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define i32 @test10(i8** %esc) {
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; CHECK-LABEL: @test10(
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; CHECK-NEXT: [[CALL:%.*]] = tail call dereferenceable_or_null(4) i8* @strndup(i8* dereferenceable(8) getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0), i32 3) [[ATTR0]]
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; CHECK-NEXT: store i8* [[CALL]], i8** [[ESC:%.*]], align 8
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; CHECK-NEXT: ret i32 4
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;
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%call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 3) nounwind
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store i8* %call, i8** %esc, align 8
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%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
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ret i32 %1
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}
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define i32 @test11(i8** %esc) {
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; CHECK-LABEL: @test11(
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; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0))
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; CHECK-NEXT: store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8
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; CHECK-NEXT: ret i32 8
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;
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%call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 7) nounwind
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store i8* %call, i8** %esc, align 8
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%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
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ret i32 %1
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}
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define i32 @test12(i8** %esc) {
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0))
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; CHECK-NEXT: store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8
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; CHECK-NEXT: ret i32 8
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;
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%call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 8) nounwind
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store i8* %call, i8** %esc, align 8
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%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
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||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test13(i8** %esc) {
|
||
|
|
; CHECK-LABEL: @test13(
|
||
|
|
; CHECK-NEXT: [[STRDUP:%.*]] = call dereferenceable_or_null(8) i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i32 0, i32 0))
|
||
|
|
; CHECK-NEXT: store i8* [[STRDUP]], i8** [[ESC:%.*]], align 8
|
||
|
|
; CHECK-NEXT: ret i32 8
|
||
|
|
;
|
||
|
|
%call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 57) nounwind
|
||
|
|
store i8* %call, i8** %esc, align 8
|
||
|
|
%1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true, i1 false, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
@globalalias = internal alias [60 x i8], [60 x i8]* @a
|
||
|
|
|
||
|
|
define i32 @test18() {
|
||
|
|
; CHECK-LABEL: @test18(
|
||
|
|
; CHECK-NEXT: ret i32 60
|
||
|
|
;
|
||
|
|
%bc = bitcast [60 x i8]* @globalalias to i8*
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p0i8(i8* %bc, i1 false, i1 false, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
@globalalias2 = weak alias [60 x i8], [60 x i8]* @a
|
||
|
|
|
||
|
|
define i32 @test19() {
|
||
|
|
; CHECK-LABEL: @test19(
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @globalalias2, i32 0, i32 0), i1 false, i1 false, i1 false)
|
||
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
||
|
|
;
|
||
|
|
%bc = bitcast [60 x i8]* @globalalias2 to i8*
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p0i8(i8* %bc, i1 false, i1 false, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test20() {
|
||
|
|
; CHECK-LABEL: @test20(
|
||
|
|
; CHECK-NEXT: ret i32 0
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 false, i1 false, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test21() {
|
||
|
|
; CHECK-LABEL: @test21(
|
||
|
|
; CHECK-NEXT: ret i32 0
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 true, i1 false, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test22() {
|
||
|
|
; CHECK-LABEL: @test22(
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 false, i1 true, i1 false)
|
||
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 false, i1 true, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test23() {
|
||
|
|
; CHECK-LABEL: @test23(
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 true, i1 true, i1 false)
|
||
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p0i8(i8* null, i1 true, i1 true, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
; 1 is an arbitrary non-zero address space.
|
||
|
|
define i32 @test24() {
|
||
|
|
; CHECK-LABEL: @test24(
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false, i1 false, i1 false)
|
||
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false,
|
||
|
|
i1 false, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test25() {
|
||
|
|
; CHECK-LABEL: @test25(
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true, i1 false, i1 false)
|
||
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true,
|
||
|
|
i1 false, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test26() {
|
||
|
|
; CHECK-LABEL: @test26(
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false, i1 true, i1 false)
|
||
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 false,
|
||
|
|
i1 true, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @test27() {
|
||
|
|
; CHECK-LABEL: @test27(
|
||
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true, i1 true, i1 false)
|
||
|
|
; CHECK-NEXT: ret i32 [[TMP1]]
|
||
|
|
;
|
||
|
|
%1 = call i32 @llvm.objectsize.i32.p1i8(i8 addrspace(1)* null, i1 true,
|
||
|
|
i1 true, i1 false)
|
||
|
|
ret i32 %1
|
||
|
|
}
|