forked from OSchip/llvm-project
72 lines
2.3 KiB
LLVM
72 lines
2.3 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
|
|
;
|
|
; Check that we do not try to preload *I and assume p != 42.
|
|
;
|
|
; CHECK: Invariant Accesses: {
|
|
; CHECK-NEXT: }
|
|
;
|
|
; CHECK: Invalid Context:
|
|
; CHECK-NEXT: [N, p] -> { : false }
|
|
;
|
|
; CHECK: Stmt_if_then__TO__if_end
|
|
; CHECK-NEXT: Domain :=
|
|
; CHECK-NEXT: [N, p] -> { Stmt_if_then__TO__if_end[i0] : p = 42 and 0 <= i0 < N };
|
|
;
|
|
; void f(int *A, int *I, int N, int p, int q) {
|
|
; for (int i = 0; i < N; i++) {
|
|
; if (p == 42) {
|
|
; *I = 0;
|
|
; if (*I == q)
|
|
; A[i] *= 2;
|
|
; }
|
|
; A[i]++;
|
|
; }
|
|
; }
|
|
;
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
define void @f(i32* %A, i32* %I, i32 %N, i32 %p, i32 %q) {
|
|
entry:
|
|
%tmp = sext i32 %N to i64
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
|
|
%cmp = icmp slt i64 %indvars.iv, %tmp
|
|
br i1 %cmp, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%cmp1 = icmp eq i32 %p, 42
|
|
br i1 %cmp1, label %if.then, label %if.end4
|
|
|
|
if.then: ; preds = %for.body
|
|
store i32 0, i32* %I, align 4
|
|
%tmp1 = load i32, i32* %I, align 4
|
|
%cmp2 = icmp eq i32 %tmp1, %q
|
|
br i1 %cmp2, label %if.then3, label %if.end
|
|
|
|
if.then3: ; preds = %if.then
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
|
|
%tmp2 = load i32, i32* %arrayidx, align 4
|
|
%mul = shl nsw i32 %tmp2, 1
|
|
store i32 %mul, i32* %arrayidx, align 4
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.then3, %if.then
|
|
br label %if.end4
|
|
|
|
if.end4: ; preds = %if.end, %for.body
|
|
%arrayidx6 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
|
|
%tmp3 = load i32, i32* %arrayidx6, align 4
|
|
%inc = add nsw i32 %tmp3, 1
|
|
store i32 %inc, i32* %arrayidx6, align 4
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %if.end4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|