69 lines
2.1 KiB
LLVM
69 lines
2.1 KiB
LLVM
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; RUN: opt -S -basic-aa -loop-idiom < %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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; LIR'ing stores of pointers with address space 3 is fine, since
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; they're integral pointers.
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define void @f_0(i8 addrspace(3)** %ptr) {
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; CHECK-LABEL: @f_0(
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; CHECK: call{{.*}}memset
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entry:
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br label %for.body
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for.body:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ]
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%arrayidx = getelementptr i8 addrspace(3)*, i8 addrspace(3)** %ptr, i64 %indvar
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store i8 addrspace(3)* null, i8 addrspace(3)** %arrayidx, align 4
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%indvar.next = add i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 10000
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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; LIR'ing stores of pointers with address space 4 is not ok, since
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; they're non-integral pointers. NOTE: Zero is special value which
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; can be converted, if we add said handling here, convert this test
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; to use any non-null pointer.
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define void @f_1(i8 addrspace(4)** %ptr) {
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; CHECK-LABEL: @f_1(
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; CHECK-NOT: call{{.*}}memset
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entry:
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br label %for.body
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for.body:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ]
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%arrayidx = getelementptr i8 addrspace(4)*, i8 addrspace(4)** %ptr, i64 %indvar
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store i8 addrspace(4)* null, i8 addrspace(4)** %arrayidx, align 4
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%indvar.next = add i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, 10000
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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; Same as previous case, but vector of non-integral pointers
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define void @f_2(i8 addrspace(4)** %ptr) {
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; CHECK-LABEL: @f_2(
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; CHECK-NOT: call{{.*}}memset
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entry:
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br label %for.body
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for.body:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ]
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%arrayidx = getelementptr i8 addrspace(4)*, i8 addrspace(4)** %ptr, i64 %indvar
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%addr = bitcast i8 addrspace(4)** %arrayidx to <2 x i8 addrspace(4)*>*
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store <2 x i8 addrspace(4)*> zeroinitializer, <2 x i8 addrspace(4)*>* %addr, align 8
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%indvar.next = add i64 %indvar, 2
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%exitcond = icmp eq i64 %indvar.next, 10000
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br i1 %exitcond, label %for.end, label %for.body
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for.end:
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ret void
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}
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