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; RUN: opt %loadPolly -polly-print-scops -disable-output < %s | FileCheck %s -check-prefix=SCOP
; RUN: opt %loadPolly -S -polly-codegen-ppcg < %s | FileCheck %s -check-prefix=HOST-IR
; REQUIRES: pollyacc
; Check that we detect a scop.
; SCOP: Function: checkScalarKill
; SCOP-NEXT: Region: %XLoopInit---%for.end
; SCOP-NEXT: Max Loop Depth: 1
; Check that we have a scalar that is not a phi node in the scop.
; SCOP: i32 MemRef_x_0; // Element size 4
; Check that kernel launch is generated in host IR.
; the declare would not be generated unless a call to a kernel exists.
; HOST-IR: declare void @polly_launchKernel(ptr, i32, i32, i32, i32, i32, ptr)
; Check that we add variables that are local to a scop into the kills that we
; pass to PPCG. This should enable PPCG to codegen this example.
; void checkScalarKill(int A[], int B[], int C[], const int control1, int control2) {
; int x;
; #pragma scop
; for(int i = 0; i < 1000; i++) {
; XLoopInit: x = 0;
;
; if (control1 > 2)
; C1Add: x += 10;
; if (control2 > 3)
; C2Add: x += A[i];
;
; BLoopAccumX: B[i] += x;
; }
;
; #pragma endscop
; }
; ModuleID = 'test.ll'
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define void @checkScalarKill(ptr %A, ptr %B, ptr %C, i32 %control1, i32 %control2) {
entry:
br label %entry.split
entry.split: ; preds = %entry
br label %XLoopInit
XLoopInit: ; preds = %entry.split, %BLoopAccumX
%indvars.iv = phi i64 [ 0, %entry.split ], [ %indvars.iv.next, %BLoopAccumX ]
%cmp1 = icmp sgt i32 %control1, 2
%x.0 = select i1 %cmp1, i32 10, i32 0
%cmp2 = icmp sgt i32 %control2, 3
br i1 %cmp2, label %C2Add, label %BLoopAccumX
C2Add: ; preds = %XLoopInit
%arrayidx = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%tmp6 = load i32, ptr %arrayidx, align 4
%add4 = add nsw i32 %tmp6, %x.0
br label %BLoopAccumX
BLoopAccumX: ; preds = %XLoopInit, %C2Add
%x.1 = phi i32 [ %add4, %C2Add ], [ %x.0, %XLoopInit ]
%arrayidx7 = getelementptr inbounds i32, ptr %B, i64 %indvars.iv
%tmp11 = load i32, ptr %arrayidx7, align 4
%add8 = add nsw i32 %tmp11, %x.1
store i32 %add8, ptr %arrayidx7, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp ne i64 %indvars.iv.next, 1000
br i1 %exitcond, label %XLoopInit, label %for.end
for.end: ; preds = %BLoopAccumX
ret void
}
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