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tile_after_fusion.ll
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; RUN: opt %loadNPMPolly -polly-isl-arg=--no-schedule-serialize-sccs '-passes=polly-opt-isl,print<polly-ast>' -disable-output < %s | FileCheck %s
;
;
; void tf(int C[256][256][256], int A0[256][256][256], int A1[256][256][256]) {
; for (int i = 0; i < 256; ++i)
; for (int j = 0; j < 256; ++j)
; for (int k = 0; k < 256; ++k)
; C[i][j][k] += A0[i][j][k];
;
; for (int i = 0; i < 256; ++i)
; for (int j = 0; j < 256; ++j)
; for (int k = 0; k < 256; ++k)
; C[i][j][k] += A1[i][j][k];
; }
;
; The tile_after_fusion.ll test has two statements in separate loop nests and
; checks whether they are tiled after being fused when polly-opt-fusion equals
; "max".
;
; CHECK-LABEL: :: isl ast :: tf :: %for.cond---%for.end56
; CHECK: 1st level tiling - Tiles
; CHECK-NEXT: for (int c0 = 0; c0 <= 7; c0 += 1)
; CHECK-NEXT: for (int c1 = 0; c1 <= 7; c1 += 1)
; CHECK-NEXT: for (int c2 = 0; c2 <= 7; c2 += 1) {
; CHECK-NEXT: // 1st level tiling - Points
; CHECK-NEXT: for (int c3 = 0; c3 <= 31; c3 += 1)
; CHECK-NEXT: for (int c4 = 0; c4 <= 31; c4 += 1)
; CHECK-NEXT: for (int c5 = 0; c5 <= 31; c5 += 1) {
; CHECK-NEXT: Stmt_for_body6(32 * c0 + c3, 32 * c1 + c4, 32 * c2 + c5);
; CHECK-NEXT: Stmt_for_body34(32 * c0 + c3, 32 * c1 + c4, 32 * c2 + c5);
source_filename = "tile_after_fusion.c"
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @tf(ptr %C, ptr %A0, ptr %A1) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc20, %entry
%indvars.iv13 = phi i64 [ %indvars.iv.next14, %for.inc20 ], [ 0, %entry ]
%exitcond15 = icmp ne i64 %indvars.iv13, 256
br i1 %exitcond15, label %for.body, label %for.end22
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc17, %for.body
%indvars.iv10 = phi i64 [ %indvars.iv.next11, %for.inc17 ], [ 0, %for.body ]
%exitcond12 = icmp ne i64 %indvars.iv10, 256
br i1 %exitcond12, label %for.body3, label %for.end19
for.body3: ; preds = %for.cond1
br label %for.cond4
for.cond4: ; preds = %for.inc, %for.body3
%indvars.iv7 = phi i64 [ %indvars.iv.next8, %for.inc ], [ 0, %for.body3 ]
%exitcond9 = icmp ne i64 %indvars.iv7, 256
br i1 %exitcond9, label %for.body6, label %for.end
for.body6: ; preds = %for.cond4
%arrayidx10 = getelementptr inbounds [256 x [256 x i32]], ptr %A0, i64 %indvars.iv13, i64 %indvars.iv10, i64 %indvars.iv7
%tmp = load i32, ptr %arrayidx10, align 4
%arrayidx16 = getelementptr inbounds [256 x [256 x i32]], ptr %C, i64 %indvars.iv13, i64 %indvars.iv10, i64 %indvars.iv7
%tmp16 = load i32, ptr %arrayidx16, align 4
%add = add nsw i32 %tmp16, %tmp
store i32 %add, ptr %arrayidx16, align 4
br label %for.inc
for.inc: ; preds = %for.body6
%indvars.iv.next8 = add nuw nsw i64 %indvars.iv7, 1
br label %for.cond4
for.end: ; preds = %for.cond4
br label %for.inc17
for.inc17: ; preds = %for.end
%indvars.iv.next11 = add nuw nsw i64 %indvars.iv10, 1
br label %for.cond1
for.end19: ; preds = %for.cond1
br label %for.inc20
for.inc20: ; preds = %for.end19
%indvars.iv.next14 = add nuw nsw i64 %indvars.iv13, 1
br label %for.cond
for.end22: ; preds = %for.cond
br label %for.cond24
for.cond24: ; preds = %for.inc54, %for.end22
%indvars.iv4 = phi i64 [ %indvars.iv.next5, %for.inc54 ], [ 0, %for.end22 ]
%exitcond6 = icmp ne i64 %indvars.iv4, 256
br i1 %exitcond6, label %for.body26, label %for.end56
for.body26: ; preds = %for.cond24
br label %for.cond28
for.cond28: ; preds = %for.inc51, %for.body26
%indvars.iv1 = phi i64 [ %indvars.iv.next2, %for.inc51 ], [ 0, %for.body26 ]
%exitcond3 = icmp ne i64 %indvars.iv1, 256
br i1 %exitcond3, label %for.body30, label %for.end53
for.body30: ; preds = %for.cond28
br label %for.cond32
for.cond32: ; preds = %for.inc48, %for.body30
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc48 ], [ 0, %for.body30 ]
%exitcond = icmp ne i64 %indvars.iv, 256
br i1 %exitcond, label %for.body34, label %for.end50
for.body34: ; preds = %for.cond32
%arrayidx40 = getelementptr inbounds [256 x [256 x i32]], ptr %A1, i64 %indvars.iv4, i64 %indvars.iv1, i64 %indvars.iv
%tmp17 = load i32, ptr %arrayidx40, align 4
%arrayidx46 = getelementptr inbounds [256 x [256 x i32]], ptr %C, i64 %indvars.iv4, i64 %indvars.iv1, i64 %indvars.iv
%tmp18 = load i32, ptr %arrayidx46, align 4
%add47 = add nsw i32 %tmp18, %tmp17
store i32 %add47, ptr %arrayidx46, align 4
br label %for.inc48
for.inc48: ; preds = %for.body34
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond32
for.end50: ; preds = %for.cond32
br label %for.inc51
for.inc51: ; preds = %for.end50
%indvars.iv.next2 = add nuw nsw i64 %indvars.iv1, 1
br label %for.cond28
for.end53: ; preds = %for.cond28
br label %for.inc54
for.inc54: ; preds = %for.end53
%indvars.iv.next5 = add nuw nsw i64 %indvars.iv4, 1
br label %for.cond24
for.end56: ; preds = %for.cond24
ret void
}