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TheRock/compiler/amd-llvm/polly/test/ScopInfo/reduction_if.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

53 lines
1.9 KiB
LLVM

; RUN: opt %loadNPMPolly '-passes=polly-custom<scops>' -polly-print-scops -disable-output -polly-allow-nonaffine < %s | FileCheck %s
;
; Verify if reduction spread across multiple blocks in a single scop statement are detected
;
; CHECK: Stmt_for_body
; CHECK: Reduction Type: +
; CHECK-NEXT: MemRef_sum[0]
; CHECK: Reduction Type: +
; CHECK-NEXT: MemRef_sum[0]
;
; void f(int*__restrict A, int*__restrict B, int *sum) {
; for (int i = 0; i < 4444; ++i) {
; if (B[i])
; *sum += A[i];
; }
; }
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-linux-gnu"
; Function Attrs: nofree norecurse nosync nounwind memory(argmem: readwrite) uwtable
define dso_local void @f(ptr noalias nocapture noundef readonly %A, ptr noalias nocapture noundef readonly %B, ptr nocapture noundef %sum) local_unnamed_addr #0 {
entry:
br label %entry.split
entry.split: ; preds = %entry
br label %for.body
for.cond.cleanup: ; preds = %for.inc
ret void
for.body: ; preds = %entry.split, %for.inc
%indvars.iv = phi i64 [ 0, %entry.split ], [ %indvars.iv.next, %for.inc ]
%arrayidx = getelementptr inbounds i32, ptr %B, i64 %indvars.iv
%0 = load i32, ptr %arrayidx
%tobool.not = icmp eq i32 %0, 0
br i1 %tobool.not, label %for.inc, label %if.then
if.then: ; preds = %for.body
%arrayidx2 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%1 = load i32, ptr %arrayidx2
%2 = load i32, ptr %sum
%add = add nsw i32 %2, %1
store i32 %add, ptr %sum
br label %for.inc
for.inc: ; preds = %for.body, %if.then
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, 4444
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}