aliasing_parametric_simple_1.ll
2.46 KB
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; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s
;
; void jd(int *A, int *B, int c) {
; for (int i = 0; i < 1024; i++)
; A[i] = B[c];
; }
;
; CHECK: %[[Cext:[._a-zA-Z0-9]*]] = sext i32 %c to i64
; CHECK: %[[Cp1:[._a-zA-Z0-9]*]] = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %[[Cext]], i64 1)
; CHECK: %[[Cp1O:[._a-zA-Z0-9]*]] = extractvalue { i64, i1 } %[[Cp1]], 1
; CHECK: %[[OS:[._a-zA-Z0-9]*]] = or i1 false, %[[Cp1O]]
; CHECK: %[[Cp1R:[._a-zA-Z0-9]*]] = extractvalue { i64, i1 } %[[Cp1]], 0
; CHECK: %[[BMax:[._a-zA-Z0-9]*]] = getelementptr i32, i32* %B, i64 %[[Cp1R]]
; CHECK: %[[AMin:[._a-zA-Z0-9]*]] = getelementptr i32, i32* %A, i64 0
; CHECK: %[[BMaxI:[._a-zA-Z0-9]*]] = ptrtoint i32* %[[BMax]] to i64
; CHECK: %[[AMinI:[._a-zA-Z0-9]*]] = ptrtoint i32* %[[AMin]] to i64
; CHECK: %[[BltA:[._a-zA-Z0-9]*]] = icmp ule i64 %[[BMaxI]], %[[AMinI]]
; CHECK: %[[AMax:[._a-zA-Z0-9]*]] = getelementptr i32, i32* %A, i64 1024
; CHECK: %[[BMin:[._a-zA-Z0-9]*]] = getelementptr i32, i32* %B, i32 %c
; CHECK: %[[AMaxI:[._a-zA-Z0-9]*]] = ptrtoint i32* %[[AMax]] to i64
; CHECK: %[[BMinI:[._a-zA-Z0-9]*]] = ptrtoint i32* %[[BMin]] to i64
; CHECK: %[[AltB:[._a-zA-Z0-9]*]] = icmp ule i64 %[[AMaxI]], %[[BMinI]]
; CHECK: %[[NoAlias:[._a-zA-Z0-9]*]] = or i1 %[[BltA]], %[[AltB]]
; CHECK: %[[RTC:[._a-zA-Z0-9]*]] = and i1 true, %[[NoAlias]]
; CHECK: %[[NOV:[._a-zA-Z0-9]*]] = xor i1 %[[OS]], true
; CHECK: %[[RTCV:[._a-zA-Z0-9]*]] = and i1 %[[RTC]], %[[NOV]]
; CHECK: br i1 %[[RTCV]], label %polly.start, label %for.cond
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @jd(i32* %A, i32* %B, i32 %c) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%exitcond = icmp ne i64 %indvars.iv, 1024
br i1 %exitcond, label %for.body, label %for.end
for.body: ; preds = %for.cond
%idxprom = sext i32 %c to i64
%arrayidx = getelementptr inbounds i32, i32* %B, i64 %idxprom
%tmp = load i32, i32* %arrayidx, align 4
%arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
store i32 %tmp, i32* %arrayidx2, align 4
br label %for.inc
for.inc: ; preds = %for.body
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}