; Test a pile of objectsize bounds checking.
; RUN: opt < %s -instcombine -S | FileCheck %s
-; XFAIL: *
; We need target data to get the sizes of the arrays and structures.
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"
@a = private global [60 x i8] zeroinitializer, align 1 ; <[60 x i8]*>
@.str = private constant [8 x i8] c"abcdefg\00" ; <[8 x i8]*>
-
define i32 @foo() nounwind {
-; CHECK: @foo
+; CHECK-LABEL: @foo(
; CHECK-NEXT: ret i32 60
- %1 = call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([60 x i8]* @a, i32 0, i32 0), i1 false)
+ %1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false)
ret i32 %1
}
define i8* @bar() nounwind {
-; CHECK: @bar
+; CHECK-LABEL: @bar(
entry:
%retval = alloca i8*
- %0 = call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([60 x i8]* @a, i32 0, i32 0), i1 false)
+ %0 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([60 x i8], [60 x i8]* @a, i32 0, i32 0), i1 false)
%cmp = icmp ne i32 %0, -1
; CHECK: br i1 true
br i1 %cmp, label %cond.true, label %cond.false
cond.true:
- %1 = load i8** %retval;
- ret i8* %1;
+ %1 = load i8*, i8** %retval
+ ret i8* %1
cond.false:
- %2 = load i8** %retval;
- ret i8* %2;
+ %2 = load i8*, i8** %retval
+ ret i8* %2
}
define i32 @f() nounwind {
-; CHECK: @f
+; CHECK-LABEL: @f(
; CHECK-NEXT: ret i32 0
- %1 = call i32 @llvm.objectsize.i32(i8* getelementptr ([60 x i8]* @a, i32 1, i32 0), i1 false)
+ %1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr ([60 x i8], [60 x i8]* @a, i32 1, i32 0), i1 false)
ret i32 %1
}
@window = external global [0 x i8]
define i1 @baz() nounwind {
-; CHECK: @baz
-; CHECK-NEXT: llvm.objectsize.i32
- %1 = tail call i32 @llvm.objectsize.i32(i8* getelementptr inbounds ([0 x i8]* @window, i32 0, i32 0), i1 false)
+; CHECK-LABEL: @baz(
+; CHECK-NEXT: objectsize
+ %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 0), i1 false)
%2 = icmp eq i32 %1, -1
ret i1 %2
}
-declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly
\ No newline at end of file
+define void @test1(i8* %q, i32 %x) nounwind noinline {
+; CHECK-LABEL: @test1(
+; CHECK: objectsize.i32.p0i8
+entry:
+ %0 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr inbounds ([0 x i8], [0 x i8]* @window, i32 0, i32 10), i1 false) ; <i64> [#uses=1]
+ %1 = icmp eq i32 %0, -1 ; <i1> [#uses=1]
+ br i1 %1, label %"47", label %"46"
+
+"46": ; preds = %entry
+ unreachable
+
+"47": ; preds = %entry
+ unreachable
+}
+
+@.str5 = private constant [9 x i32] [i32 97, i32 98, i32 99, i32 100, i32 0, i32
+ 101, i32 102, i32 103, i32 0], align 4
+define i32 @test2() nounwind {
+; CHECK-LABEL: @test2(
+; CHECK-NEXT: ret i32 34
+ %1 = call i32 @llvm.objectsize.i32.p0i8(i8* getelementptr (i8, i8* bitcast ([9 x i32]* @.str5 to i8*), i32 2), i1 false)
+ ret i32 %1
+}
+
+; rdar://7674946
+@array = internal global [480 x float] zeroinitializer ; <[480 x float]*> [#uses=1]
+
+declare i8* @__memcpy_chk(i8*, i8*, i32, i32) nounwind
+
+declare i32 @llvm.objectsize.i32.p0i8(i8*, i1) nounwind readonly
+
+declare i8* @__inline_memcpy_chk(i8*, i8*, i32) nounwind inlinehint
+
+define void @test3() nounwind {
+; CHECK-LABEL: @test3(
+entry:
+ br i1 undef, label %bb11, label %bb12
+
+bb11:
+ %0 = getelementptr inbounds float, float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 128), i32 -127 ; <float*> [#uses=1]
+ %1 = bitcast float* %0 to i8* ; <i8*> [#uses=1]
+ %2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false) ; <i32> [#uses=1]
+ %3 = call i8* @__memcpy_chk(i8* undef, i8* undef, i32 512, i32 %2) nounwind ; <i8*> [#uses=0]
+; CHECK: unreachable
+ unreachable
+
+bb12:
+ %4 = getelementptr inbounds float, float* getelementptr inbounds ([480 x float], [480 x float]* @array, i32 0, i32 128), i32 -127 ; <float*> [#uses=1]
+ %5 = bitcast float* %4 to i8* ; <i8*> [#uses=1]
+ %6 = call i8* @__inline_memcpy_chk(i8* %5, i8* undef, i32 512) nounwind inlinehint ; <i8*> [#uses=0]
+; CHECK: @__inline_memcpy_chk
+ unreachable
+}
+
+; rdar://7718857
+
+%struct.data = type { [100 x i32], [100 x i32], [1024 x i8] }
+
+define i32 @test4(i8** %esc) nounwind ssp {
+; CHECK-LABEL: @test4(
+entry:
+ %0 = alloca %struct.data, align 8
+ %1 = bitcast %struct.data* %0 to i8*
+ %2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false) nounwind
+; CHECK-NOT: @llvm.objectsize
+; CHECK: @llvm.memset.p0i8.i32(i8* %1, i8 0, i32 1824, i32 8, i1 false)
+ %3 = call i8* @__memset_chk(i8* %1, i32 0, i32 1824, i32 %2) nounwind
+ store i8* %1, i8** %esc
+ ret i32 0
+}
+
+; rdar://7782496
+@s = external global i8*
+
+define i8* @test5(i32 %n) nounwind ssp {
+; CHECK-LABEL: @test5(
+entry:
+ %0 = tail call noalias i8* @malloc(i32 20) nounwind
+ %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false)
+ %2 = load i8*, i8** @s, align 8
+; CHECK-NOT: @llvm.objectsize
+; CHECK: @llvm.memcpy.p0i8.p0i8.i32(i8* %0, i8* %1, i32 10, i32 1, i1 false)
+ %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 10, i32 %1) nounwind
+ ret i8* %0
+}
+
+define void @test6(i32 %n) nounwind ssp {
+; CHECK-LABEL: @test6(
+entry:
+ %0 = tail call noalias i8* @malloc(i32 20) nounwind
+ %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %0, i1 false)
+ %2 = load i8*, i8** @s, align 8
+; CHECK-NOT: @llvm.objectsize
+; CHECK: @__memcpy_chk(i8* %0, i8* %1, i32 30, i32 20)
+ %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 30, i32 %1) nounwind
+ ret void
+}
+
+declare i8* @__memset_chk(i8*, i32, i32, i32) nounwind
+
+declare noalias i8* @malloc(i32) nounwind
+
+define i32 @test7(i8** %esc) {
+; CHECK-LABEL: @test7(
+ %alloc = call noalias i8* @malloc(i32 48) nounwind
+ store i8* %alloc, i8** %esc
+ %gep = getelementptr inbounds i8, i8* %alloc, i32 16
+ %objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false) nounwind readonly
+; CHECK: ret i32 32
+ ret i32 %objsize
+}
+
+declare noalias i8* @calloc(i32, i32) nounwind
+
+define i32 @test8(i8** %esc) {
+; CHECK-LABEL: @test8(
+ %alloc = call noalias i8* @calloc(i32 5, i32 7) nounwind
+ store i8* %alloc, i8** %esc
+ %gep = getelementptr inbounds i8, i8* %alloc, i32 5
+ %objsize = call i32 @llvm.objectsize.i32.p0i8(i8* %gep, i1 false) nounwind readonly
+; CHECK: ret i32 30
+ ret i32 %objsize
+}
+
+declare noalias i8* @strdup(i8* nocapture) nounwind
+declare noalias i8* @strndup(i8* nocapture, i32) nounwind
+
+; CHECK-LABEL: @test9(
+define i32 @test9(i8** %esc) {
+ %call = tail call i8* @strdup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0)) nounwind
+ store i8* %call, i8** %esc, align 8
+ %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true)
+; CHECK: ret i32 8
+ ret i32 %1
+}
+
+; CHECK-LABEL: @test10(
+define i32 @test10(i8** %esc) {
+ %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 3) nounwind
+ store i8* %call, i8** %esc, align 8
+ %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true)
+; CHECK: ret i32 4
+ ret i32 %1
+}
+
+; CHECK-LABEL: @test11(
+define i32 @test11(i8** %esc) {
+ %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 7) nounwind
+ store i8* %call, i8** %esc, align 8
+ %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true)
+; CHECK: ret i32 8
+ ret i32 %1
+}
+
+; CHECK-LABEL: @test12(
+define i32 @test12(i8** %esc) {
+ %call = tail call i8* @strndup(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0), i32 8) nounwind
+ store i8* %call, i8** %esc, align 8
+ %1 = tail call i32 @llvm.objectsize.i32.p0i8(i8* %call, i1 true)
+; CHECK: ret i32 8
+ ret i32 %1
+}
+
+; CHECK-LABEL: @test13(
+define i32 @test13(i8** %esc) {
+ %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)
+; CHECK: ret i32 8
+ ret i32 %1
+}
+
+@globalalias = internal alias [60 x i8]* @a
+
+; CHECK-LABEL: @test18(
+; CHECK-NEXT: ret i32 60
+define i32 @test18() {
+ %bc = bitcast [60 x i8]* @globalalias to i8*
+ %1 = call i32 @llvm.objectsize.i32.p0i8(i8* %bc, i1 false)
+ ret i32 %1
+}
+
+@globalalias2 = weak alias [60 x i8]* @a
+
+; CHECK-LABEL: @test19(
+; CHECK: llvm.objectsize
+define i32 @test19() {
+ %bc = bitcast [60 x i8]* @globalalias2 to i8*
+ %1 = call i32 @llvm.objectsize.i32.p0i8(i8* %bc, i1 false)
+ ret i32 %1
+}
+
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