b70ddd8901
Summary: C.f. http://llvm.org/docs/LangRef.html#non-integral-pointer-type Reviewers: chandlerc, loladiro Reviewed By: loladiro Subscribers: reames, loladiro, mcrosier, llvm-commits Differential Revision: https://reviews.llvm.org/D32203 llvm-svn: 305639
47 lines
1.2 KiB
LLVM
47 lines
1.2 KiB
LLVM
; RUN: opt -sroa -S < %s | FileCheck %s
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; This test checks that SROA does not introduce ptrtoint and inttoptr
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; casts from and to non-integral pointers. The "ni:4" bit in the
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; datalayout states that pointers of address space 4 are to be
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; considered "non-integral".
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:4"
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target triple = "x86_64-unknown-linux-gnu"
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define void @f0(i1 %alwaysFalse, i64 %val) {
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; CHECK-LABEL: @f0(
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; CHECK-NOT: inttoptr
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; CHECK-NOT: ptrtoint
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entry:
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%loc = alloca i64
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store i64 %val, i64* %loc
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br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken
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neverTaken:
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%loc.bc = bitcast i64* %loc to i8 addrspace(4)**
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%ptr = load i8 addrspace(4)*, i8 addrspace(4)** %loc.bc
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store i8 5, i8 addrspace(4)* %ptr
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ret void
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alwaysTaken:
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ret void
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}
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define i64 @f1(i1 %alwaysFalse, i8 addrspace(4)* %val) {
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; CHECK-LABEL: @f1(
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; CHECK-NOT: inttoptr
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; CHECK-NOT: ptrtoint
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entry:
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%loc = alloca i8 addrspace(4)*
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store i8 addrspace(4)* %val, i8 addrspace(4)** %loc
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br i1 %alwaysFalse, label %neverTaken, label %alwaysTaken
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neverTaken:
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%loc.bc = bitcast i8 addrspace(4)** %loc to i64*
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%int = load i64, i64* %loc.bc
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ret i64 %int
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alwaysTaken:
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ret i64 42
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}
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