forked from OSchip/llvm-project
97 lines
3.0 KiB
LLVM
97 lines
3.0 KiB
LLVM
; RUN: opt %loadPolly -polly-ast -analyze -polly-precise-inbounds < %s \
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; RUN: -polly-precise-fold-accesses \
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; RUN: | 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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; void foo(long n, long m, int o, double A[n][m], long p, long q) {
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;
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; if (o >= 0)
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; for (long i = 0; i < n; i++)
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; for (long j = 0; j < m; j++)
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; A[i+p][j+q] = 1.0;
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; else
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; for (long i = 0; i < n; i++)
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; for (long j = 0; j < m; j++)
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; A[i+p][j+q-100] = 1.0;
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;
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; This test case is meant to verify that the run-time condition generated
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; for the delinearization is simplified such that conditions that would not
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; cause any code to be executed are not generated.
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; CHECK: if (((o >= 1 && q <= 0 && m + q >= 0) || (o <= 0 && m + q >= 100 && q <= 100)) && 0 == ((o <= 0 && n >= 1 && m + q >= 9223372036854775909) || (o <= 0 && m >= 1 && n >= 1 && q <= -9223372036854775709)))
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; CHECK: if (o <= 0) {
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; CHECK: for (int c0 = 0; c0 < n; c0 += 1)
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; CHECK: for (int c1 = 0; c1 < m; c1 += 1)
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; CHECK: Stmt_for_j_1(c0, c1);
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; CHECK: } else
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; CHECK: for (int c0 = 0; c0 < n; c0 += 1)
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; CHECK: for (int c1 = 0; c1 < m; c1 += 1)
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; CHECK: Stmt_for_j(c0, c1);
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; CHECK: else
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; CHECK: { /* original code */ }
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define void @foo(i64 %n, i64 %m, i64 %o, double* %A, i64 %p, i64 %q) {
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entry:
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br label %cond
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cond:
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%cmp = icmp sgt i64 %o, 0
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br i1 %cmp, label %for.i, label %for.i.1
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for.i:
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%i = phi i64 [ 0, %cond ], [ %i.inc, %for.i.inc ]
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br label %for.j
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for.j:
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%j = phi i64 [ 0, %for.i ], [ %j.inc, %for.j.inc ]
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%offset0 = add nsw i64 %i, %p
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%subscript0 = mul i64 %offset0, %m
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%offset1 = add nsw i64 %j, %q
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%subscript1 = add i64 %offset1, %subscript0
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%idx = getelementptr inbounds double, double* %A, i64 %subscript1
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store double 1.0, double* %idx
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br label %for.j.inc
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for.j.inc:
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%j.inc = add nsw i64 %j, 1
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%j.exitcond = icmp eq i64 %j.inc, %m
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br i1 %j.exitcond, label %for.i.inc, label %for.j
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for.i.inc:
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%i.inc = add nsw i64 %i, 1
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%i.exitcond = icmp eq i64 %i.inc, %n
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br i1 %i.exitcond, label %end, label %for.i
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for.i.1:
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%i.1 = phi i64 [ 0, %cond ], [ %i.inc.1, %for.i.inc.1 ]
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br label %for.j.1
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for.j.1:
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%j.1 = phi i64 [ 0, %for.i.1 ], [ %j.inc.1, %for.j.inc.1 ]
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%offset0.1 = add nsw i64 %i.1, %p
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%subscript0.1 = mul i64 %offset0.1, %m
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%offset1.1 = add nsw i64 %j.1, %q
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%subscript1.1 = add i64 %offset1.1, %subscript0.1
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%subscript1.2 = sub i64 %subscript1.1, 100
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%idx.1 = getelementptr inbounds double, double* %A, i64 %subscript1.2
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store double 1.0, double* %idx.1
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br label %for.j.inc.1
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for.j.inc.1:
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%j.inc.1 = add nsw i64 %j.1, 1
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%j.exitcond.1 = icmp eq i64 %j.inc.1, %m
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br i1 %j.exitcond.1, label %for.i.inc.1, label %for.j.1
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for.i.inc.1:
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%i.inc.1 = add nsw i64 %i.1, 1
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%i.exitcond.1 = icmp eq i64 %i.inc.1, %n
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br i1 %i.exitcond.1, label %end, label %for.i.1
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end:
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ret void
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}
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