forked from OSchip/llvm-project
119 lines
4.1 KiB
LLVM
119 lines
4.1 KiB
LLVM
; RUN: opt %loadPolly %defaultOpts -polly-import-jscop-dir=%S -polly-import-jscop -polly-cloog -analyze < %s | FileCheck %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-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@A = common global [100 x [100 x double]] zeroinitializer, align 16
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@B = common global [100 x [100 x double]] zeroinitializer, align 16
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define void @ambigous_schedule() nounwind uwtable {
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entry:
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br label %for.cond
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for.cond: ; preds = %for.inc6, %entry
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%i.0 = phi i32 [ 0, %entry ], [ %inc7, %for.inc6 ]
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%cmp = icmp slt i32 %i.0, 100
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br i1 %cmp, label %for.body, label %for.end8
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for.body: ; preds = %for.cond
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br label %for.cond1
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for.cond1: ; preds = %for.inc, %for.body
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%j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
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%cmp2 = icmp slt i32 %j.0, 100
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br i1 %cmp2, label %for.body3, label %for.end
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for.body3: ; preds = %for.cond1
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%add = add nsw i32 %i.0, %j.0
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%conv = sitofp i32 %add to double
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%idxprom = sext i32 %j.0 to i64
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%idxprom4 = sext i32 %i.0 to i64
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%arrayidx = getelementptr inbounds [100 x [100 x double]]* @A, i32 0, i64 %idxprom4
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%arrayidx5 = getelementptr inbounds [100 x double]* %arrayidx, i32 0, i64 %idxprom
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store double %conv, double* %arrayidx5, align 8
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br label %for.inc
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for.inc: ; preds = %for.body3
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%inc = add nsw i32 %j.0, 1
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br label %for.cond1
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for.end: ; preds = %for.cond1
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br label %for.inc6
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for.inc6: ; preds = %for.end
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%inc7 = add nsw i32 %i.0, 1
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br label %for.cond
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for.end8: ; preds = %for.cond
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br label %for.cond10
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for.cond10: ; preds = %for.inc28, %for.end8
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%i9.0 = phi i32 [ 0, %for.end8 ], [ %inc29, %for.inc28 ]
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%cmp11 = icmp slt i32 %i9.0, 100
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br i1 %cmp11, label %for.body13, label %for.end30
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for.body13: ; preds = %for.cond10
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br label %for.cond15
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for.cond15: ; preds = %for.inc25, %for.body13
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%j14.0 = phi i32 [ 0, %for.body13 ], [ %inc26, %for.inc25 ]
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%cmp16 = icmp slt i32 %j14.0, 100
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br i1 %cmp16, label %for.body18, label %for.end27
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for.body18: ; preds = %for.cond15
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%add19 = add nsw i32 %i9.0, %j14.0
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%conv20 = sitofp i32 %add19 to double
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%idxprom21 = sext i32 %j14.0 to i64
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%idxprom22 = sext i32 %i9.0 to i64
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%arrayidx23 = getelementptr inbounds [100 x [100 x double]]* @B, i32 0, i64 %idxprom22
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%arrayidx24 = getelementptr inbounds [100 x double]* %arrayidx23, i32 0, i64 %idxprom21
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store double %conv20, double* %arrayidx24, align 8
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br label %for.inc25
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for.inc25: ; preds = %for.body18
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%inc26 = add nsw i32 %j14.0, 1
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br label %for.cond15
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for.end27: ; preds = %for.cond15
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br label %for.inc28
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for.inc28: ; preds = %for.end27
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%inc29 = add nsw i32 %i9.0, 1
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br label %for.cond10
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for.end30: ; preds = %for.cond10
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ret void
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}
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; CHECK: for (c2=0;c2<=99;c2++) {
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; CHECK: for (c3=0;c3<=99;c3++) {
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; CHECK: Stmt_for_body3(c2,c3);
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; CHECK: Stmt_for_body18(c3,c2);
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; CHECK: }
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; CHECK: }
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; This check makes sure CLooG stops splitting for ambigious schedules as
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; they may be generated by the isl/PoCC/Pluto schedule optimizers.
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;
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; Previously we created such code:
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;
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; for (c2=0;c2<=99;c2++) {
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; for (c3=0;c3<=99;c3++) {
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; if (c2 == c3) {
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; Stmt_for_body3(c2,c2);
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; Stmt_for_body18(c2,c2);
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; }
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; if (c2 <= c3-1) {
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; Stmt_for_body3(c2,c3);
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; }
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; if (c2 <= c3-1) {
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; Stmt_for_body18(c3,c2);
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; }
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; if (c2 >= c3+1) {
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; Stmt_for_body18(c3,c2);
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; }
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; if (c2 >= c3+1) {
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; Stmt_for_body3(c2,c3);
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; }
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; }
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; }
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