187 lines
7.0 KiB
LLVM
187 lines
7.0 KiB
LLVM
; ModuleID = 'parallel_loop.s'
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; RUN: opt %loadPolly %defaultOpts -polly-cloog -polly-codegen -enable-polly-openmp -analyze < %s | FileCheck %s
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; RUN: opt %loadPolly %defaultOpts -polly-import-jscop -polly-import-jscop-dir=%S -polly-cloog -polly-codegen -enable-polly-openmp -analyze < %s | FileCheck -check-prefix=IMPORT %s
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; RUN: opt %loadPolly %defaultOpts -polly-import-jscop -polly-import-jscop-dir=%S -polly-cloog -polly-codegen -enable-polly-openmp -analyze < %s | FileCheck -check-prefix=IMPORT %s
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; RUN: opt %loadPolly %defaultOpts -polly-import-jscop -polly-import-jscop-postfix=tiled -polly-import-jscop-dir=%S -polly-cloog -polly-codegen -enable-polly-openmp -analyze -disable-polly-legality < %s | FileCheck -check-prefix=TILED %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
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target triple = "x86_64-unknown-linux-gnu"
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@A = common global [1024 x [1024 x float]] zeroinitializer, align 16
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@B = common global [1024 x [1024 x float]] zeroinitializer, align 16
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@C = common global [1024 x [1024 x float]] zeroinitializer, align 16
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@X = common global [1024 x float] zeroinitializer, align 16
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define float @parallel_loop() nounwind {
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bb:
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br label %bb18
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bb18: ; preds = %bb32, %bb
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%indvar9 = phi i64 [ %indvar.next10, %bb32 ], [ 0, %bb ]
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%exitcond15 = icmp ne i64 %indvar9, 1024
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br i1 %exitcond15, label %bb19, label %bb33
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bb19: ; preds = %bb18
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br label %bb20
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bb20: ; preds = %bb30, %bb19
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%indvar6 = phi i64 [ %indvar.next7, %bb30 ], [ 0, %bb19 ]
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%scevgep14 = getelementptr [1024 x [1024 x float]]* @C, i64 0, i64 %indvar9, i64 %indvar6
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%exitcond12 = icmp ne i64 %indvar6, 1024
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br i1 %exitcond12, label %bb21, label %bb31
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bb21: ; preds = %bb20
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br label %bb22
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bb22: ; preds = %bb28, %bb21
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%indvar3 = phi i64 [ %indvar.next4, %bb28 ], [ 0, %bb21 ]
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%scevgep11 = getelementptr [1024 x [1024 x float]]* @A, i64 0, i64 %indvar9, i64 %indvar3
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%scevgep8 = getelementptr [1024 x [1024 x float]]* @B, i64 0, i64 %indvar3, i64 %indvar6
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%exitcond5 = icmp ne i64 %indvar3, 1024
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br i1 %exitcond5, label %bb23, label %bb29
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bb23: ; preds = %bb22
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%tmp = load float* %scevgep11, align 4
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%tmp24 = load float* %scevgep8, align 4
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%tmp25 = fmul float %tmp, %tmp24
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%tmp26 = load float* %scevgep14, align 4
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%tmp27 = fadd float %tmp26, %tmp25
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store float %tmp27, float* %scevgep14, align 4
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br label %bb28
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bb28: ; preds = %bb23
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%indvar.next4 = add i64 %indvar3, 1
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br label %bb22
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bb29: ; preds = %bb22
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br label %bb30
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bb30: ; preds = %bb29
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%indvar.next7 = add i64 %indvar6, 1
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br label %bb20
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bb31: ; preds = %bb20
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br label %bb32
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bb32: ; preds = %bb31
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%indvar.next10 = add i64 %indvar9, 1
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br label %bb18
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bb33: ; preds = %bb18
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br label %bb34
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bb34: ; preds = %bb48, %bb33
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%i.1 = phi i32 [ 0, %bb33 ], [ %tmp49, %bb48 ]
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%exitcond2 = icmp ne i32 %i.1, 1024
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br i1 %exitcond2, label %bb35, label %bb50
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bb35: ; preds = %bb34
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br label %bb36
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bb36: ; preds = %bb45, %bb35
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%j.1 = phi i32 [ 0, %bb35 ], [ %tmp46, %bb45 ]
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%exitcond1 = icmp ne i32 %j.1, 1024
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br i1 %exitcond1, label %bb37, label %bb47
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bb37: ; preds = %bb36
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br label %bb38
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bb38: ; preds = %bb43, %bb37
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%indvar = phi i64 [ %indvar.next, %bb43 ], [ 0, %bb37 ]
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%scevgep = getelementptr [1024 x float]* @X, i64 0, i64 %indvar
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%exitcond = icmp ne i64 %indvar, 1024
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br i1 %exitcond, label %bb39, label %bb44
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bb39: ; preds = %bb38
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%tmp40 = load float* %scevgep, align 4
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%tmp41 = load float* %scevgep, align 4
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%tmp42 = fadd float %tmp41, %tmp40
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store float %tmp42, float* %scevgep, align 4
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br label %bb43
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bb43: ; preds = %bb39
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%indvar.next = add i64 %indvar, 1
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br label %bb38
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bb44: ; preds = %bb38
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br label %bb45
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bb45: ; preds = %bb44
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%tmp46 = add nsw i32 %j.1, 1
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br label %bb36
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bb47: ; preds = %bb36
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br label %bb48
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bb48: ; preds = %bb47
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%tmp49 = add nsw i32 %i.1, 1
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br label %bb34
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bb50: ; preds = %bb34
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%tmp51 = load float* getelementptr inbounds ([1024 x [1024 x float]]* @C, i64 0, i64 42, i64 42), align 8
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%tmp52 = load float* getelementptr inbounds ([1024 x float]* @X, i64 0, i64 42), align 8
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%tmp53 = fadd float %tmp51, %tmp52
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ret float %tmp53
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}
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; CHECK: for (c2=0;c2<=1023;c2++) {
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; CHECK: for (c4=0;c4<=1023;c4++) {
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; CHECK: for (c6=0;c6<=1023;c6++) {
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; CHECK: Stmt_bb23(c2,c4,c6);
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; CHECK: }
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; CHECK: }
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; CHECK: }
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; CHECK: for (c2=0;c2<=1023;c2++) {
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; CHECK: for (c4=0;c4<=1023;c4++) {
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; CHECK: for (c6=0;c6<=1023;c6++) {
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; CHECK: Stmt_bb39(c2,c4,c6);
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; CHECK: }
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; CHECK: }
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; CHECK: }
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; CHECK: Parallel loop with iterator 'c2' generated
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; CHECK: Parallel loop with iterator 'c6' generated
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; CHECK-NOT: Parallel loop
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; IMPORT: for (c2=0;c2<=1023;c2++) {
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; IMPORT: for (c4=0;c4<=1023;c4++) {
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; IMPORT: for (c6=0;c6<=1023;c6++) {
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; IMPORT: Stmt_bb23(c2,c4,c6);
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; IMPORT: Stmt_bb39(c2,c4,c6);
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; IMPORT: }
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; IMPORT: }
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; IMPORT: }
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; IMPORT-NOT: Parallel loop
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; TILED: for (c2=0;c2<=1023;c2+=4) {
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; TILED: for (c4=0;c4<=1023;c4+=4) {
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; TILED: for (c6=0;c6<=1023;c6+=4) {
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; TILED: for (c8=c2;c8<=c2+3;c8++) {
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; TILED: for (c9=c4;c9<=c4+3;c9++) {
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; TILED: for (c10=c6;c10<=c6+3;c10++) {
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; TILED: Stmt_bb23(c8,c9,c10);
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; TILED: }
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; TILED: }
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; TILED: }
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; TILED: }
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; TILED: }
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; TILED: }
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; TILED: for (c2=0;c2<=1023;c2+=4) {
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; TILED: for (c4=0;c4<=1023;c4+=4) {
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; TILED: for (c6=0;c6<=1023;c6+=4) {
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; TILED: for (c8=c2;c8<=c2+3;c8++) {
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; TILED: for (c9=c4;c9<=c4+3;c9++) {
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; TILED: for (c10=c6;c10<=c6+3;c10++) {
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; TILED: Stmt_bb39(c8,c9,c10);
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; TILED: }
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; TILED: }
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; TILED: }
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; TILED: }
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; TILED: }
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; TILED: }
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; I am not sure if we actually may have parallel loops here. The dependency
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; analysis does not detect any. This may however be because we do not
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; correctly update the imported schedule. Add a check that hopefully fails
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; after this is corrected. Or someone proves there are no parallel loops and
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; we can remove this comment.
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; TILDED-NOT: Parallel loop
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