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c904d5075f
Without a valid data layout, deferenceable(N) doesn't get parsed or propagated. Since this is the key item we are testing, add a dependency on the pass. Differential Revision: http://reviews.llvm.org/D7508 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228611 91177308-0d34-0410-b5e6-96231b3b80d8
35 lines
1.2 KiB
LLVM
35 lines
1.2 KiB
LLVM
; RUN: opt -print-memderefs -analyze -S <%s | FileCheck %s
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; Uses the print-deref (+ analyze to print) pass to run
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; isDereferenceablePointer() on many load instruction operands
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target datalayout = "e"
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declare zeroext i1 @return_i1()
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@globalstr = global [6 x i8] c"hello\00"
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define void @test(i32 addrspace(1)* dereferenceable(8) %dparam) {
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; CHECK: The following are dereferenceable:
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; CHECK: %globalptr
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; CHECK: %alloca
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; CHECK: %dparam
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; CHECK: %relocate
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; CHECK-NOT: %nparam
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entry:
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%globalptr = getelementptr inbounds [6 x i8]* @globalstr, i32 0, i32 0
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%load1 = load i8* %globalptr
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%alloca = alloca i1
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%load2 = load i1* %alloca
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%load3 = load i32 addrspace(1)* %dparam
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%tok = tail call i32 (i1 ()*, i32, i32, ...)* @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()* @return_i1, i32 0, i32 0, i32 0, i32 addrspace(1)* %dparam)
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%relocate = call i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32 %tok, i32 4, i32 4)
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%load4 = load i32 addrspace(1)* %relocate
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%nparam = getelementptr i32 addrspace(1)* %dparam, i32 5
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%load5 = load i32 addrspace(1)* %nparam
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ret void
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}
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declare i32 @llvm.experimental.gc.statepoint.p0f_i1f(i1 ()*, i32, i32, ...)
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declare i32 addrspace(1)* @llvm.experimental.gc.relocate.p1i32(i32, i32, i32)
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