forked from OSchip/llvm-project
297 lines
7.6 KiB
LLVM
297 lines
7.6 KiB
LLVM
; RUN: opt %loadPolly -disable-basicaa -polly-detect -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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define void @base_pointer_in_condition(i64** noalias %A_ptr, i64 %N) nounwind {
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entry:
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fence seq_cst
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br label %pre
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pre:
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%A = load i64*, i64** %A_ptr
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br i1 true, label %for.i, label %then
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for.i:
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%indvar = phi i64 [ 0, %pre ], [ %indvar.next, %for.i ]
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%scevgep = getelementptr i64, i64* %A, i64 %indvar
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store i64 %indvar, i64* %scevgep
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%indvar.next = add nsw i64 %indvar, 1
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%exitcond = icmp eq i64 %indvar.next, %N
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br i1 %exitcond, label %then, label %for.i
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then:
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br label %return
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return:
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fence seq_cst
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ret void
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}
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; CHECK-LABEL: base_pointer_in_condition
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; CHECK: Valid Region for Scop: pre => return
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define void @base_pointer_is_argument(float* %A, i64 %n) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* %A, i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: base_pointer_is_argument
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; CHECK: Valid Region for Scop: for.i => exit
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define void @base_pointer_is_const_expr(i64 %n) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* inttoptr (i64 100 to float*), i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: base_pointer_is_const_expr
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; CHECK-LABEL: Valid Region for Scop: for.i => exit
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@A = external global float
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define void @base_pointer_is_global(i64 %n) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* @A, i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: base_pointer_is_global
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; CHECK: Valid Region for Scop: for.i => exit
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declare float *@foo()
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define void @base_pointer_is_inst_outside(i64 %n) {
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entry:
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%A = call float *@foo()
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* %A, i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: base_pointer_is_inst_outside
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; CHECK: Valid Region for Scop: for.i => exit
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declare float* @getNextBasePtr(float*) readnone nounwind
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define void @base_pointer_is_phi_node(i64 %n, float* %A) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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%ptr = phi float* [ %ptr.next, %for.i.inc ], [ %A, %entry ]
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; To get a PHI node inside a SCoP that can not be analyzed but
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; for which the surrounding SCoP is normally still valid we use a function
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; without any side effects.
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%ptr.next = call float* @getNextBasePtr(float* %ptr)
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* %ptr, i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: base_pointer_is_phi_node
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; CHECK-NOT: Valid Region for Scop
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define void @base_pointer_is_inst_inside_invariant_1(i64 %n, float* %A) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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; A function return value, even with readnone nounwind attributes, is not
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; considered a valid base pointer because it can return a pointer that aliases
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; with something else (e.g. %A or a global) or return a different pointer at
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; every call (e.g. malloc)
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%ptr = call float* @getNextBasePtr(float* %A)
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* %ptr, i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: base_pointer_is_inst_inside_invariant_1
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; CHECK-NOT: Valid Region for Scop
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declare float* @getNextBasePtr2(float*) readnone nounwind
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define void @base_pointer_is_inst_inside_invariant_2(i64 %n, float* %A) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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%ptr = call float* @getNextBasePtr2(float* %A)
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%ptr2 = call float* @getNextBasePtr(float* %ptr)
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* %ptr2, i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK-LABEL: base_pointer_is_inst_inside_invariant_2
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; CHECK-NOT: Valid Region for Scop
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declare float* @getNextBasePtr3(float*, i64) readnone nounwind
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define void @base_pointer_is_inst_inside_variant(i64 %n, float* %A) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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%ptr = call float* @getNextBasePtr3(float* %A, i64 %indvar.i)
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%ptr2 = call float* @getNextBasePtr(float* %ptr)
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br label %S1
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S1:
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%conv = sitofp i64 %indvar.i to float
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%arrayidx5 = getelementptr float, float* %ptr2, i64 %indvar.i
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store float %conv, float* %arrayidx5, align 4
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br label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK: base_pointer_is_inst_inside_variant
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; CHECK-NOT: Valid Region for Scop
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define void @base_pointer_is_ptr2ptr(float** noalias %A, i64 %n) {
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entry:
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br label %for.i
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for.i:
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%indvar.i = phi i64 [ %indvar.i.next, %for.i.inc ], [ 0, %entry ]
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%arrayidx = getelementptr float*, float** %A, i64 %indvar.i
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br label %for.j
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for.j:
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%indvar.j = phi i64 [ 0, %for.i ], [ %indvar.j.next, %for.j ]
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%conv = sitofp i64 %indvar.i to float
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%basepointer = load float*, float** %arrayidx, align 8
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%arrayidx5 = getelementptr float, float* %basepointer, i64 %indvar.j
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store float %conv, float* %arrayidx5, align 4
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%indvar.j.next = add i64 %indvar.j, 1
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%exitcond.j = icmp ne i64 %indvar.j.next, %n
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br i1 %exitcond.j, label %for.j, label %for.i.inc
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for.i.inc:
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%indvar.i.next = add i64 %indvar.i, 1
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%exitcond.i = icmp ne i64 %indvar.i.next, %n
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br i1 %exitcond.i, label %for.i, label %exit
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exit:
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ret void
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}
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; CHECK: base_pointer_is_ptr2ptr
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; CHECK: Valid Region for Scop: for.j => for.i.inc
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