forked from OSchip/llvm-project
49 lines
1.5 KiB
LLVM
49 lines
1.5 KiB
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
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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 i8 addrspace(4)* @f_0() {
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; CHECK-LABEL: @f_0(
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; CHECK: ret i8 addrspace(4)* getelementptr (i8, i8 addrspace(4)* null, i64 50)
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%result = getelementptr i8, i8 addrspace(4)* null, i64 50
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ret i8 addrspace(4)* %result
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}
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define i8 addrspace(3)* @f_1() {
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; inttoptr is fine here since addrspace(3) is integral.
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; CHECK-LABEL: @f_1(
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; CHECK: ret i8 addrspace(3)* inttoptr (i64 50 to i8 addrspace(3)*)
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%result = getelementptr i8, i8 addrspace(3)* null, i64 50
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ret i8 addrspace(3)* %result
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}
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define void @f_2(i8 addrspace(4)** %ptr0, i8 addrspace(4)** %ptr1) {
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; It is not okay to convert the load/store pair to load and store
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; integers, since pointers in address space 4 are non-integral.
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; CHECK-LABEL: @f_2(
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entry:
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; CHECK: %val = load i8 addrspace(4)*, i8 addrspace(4)** %ptr0, align 8
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; CHECK: store i8 addrspace(4)* %val, i8 addrspace(4)** %ptr1, align 8
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; CHECK-NOT: load i64
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; CHECK-NOT: store i64
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%val = load i8 addrspace(4)*, i8 addrspace(4)** %ptr0
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store i8 addrspace(4)* %val, i8 addrspace(4)** %ptr1
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ret void
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}
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define void @f_3(i8 addrspace(3)** %ptr0, i8 addrspace(3)** %ptr1) {
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; It *is* okay to convert the load/store pair to load and store
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; integers, since pointers in address space 3 are integral.
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; CHECK-LABEL: @f_3(
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entry:
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; CHECK: load i64
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; CHECK: store i64
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%val = load i8 addrspace(3)*, i8 addrspace(3)** %ptr0
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store i8 addrspace(3)* %val, i8 addrspace(3)** %ptr1
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ret void
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}
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