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llvm-project/polly/test/Isl/CodeGen/scalar_codegen_crash.ll

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tests: Drop -polly-detect-unprofitable and -polly-no-early-exit These flags are now always passed to all tests and need to be disabled if not needed. Disabling these flags, rather than passing them to almost all tests, significantly simplfies our RUN: lines. llvm-svn: 249422
2015-10-06 23:36:44 +08:00
; RUN: opt %loadPolly \
Model fixed-size multi-dimensional arrays if possible multi-dimensional If the GEP instructions give us enough insights, model scalar accesses as multi-dimensional (and generate the relevant run-time checks to ensure correctness). This will allow us to simplify the dependence computation in a subsequent commit. llvm-svn: 247906
2015-09-18 01:28:15 +08:00
; RUN: -polly-codegen -S < %s | FileCheck %s
; This test cases used to crash the scalar code generation. Check that we
; can generate code for it.
; CHECK: polly.start
Add a crashing test case for the scalar code generation This test case crashes the scalar code generation as we are not consistent with the usage of the assumed context. To be precise, we use the assumed context for the dependence analysis but not to restrict the domains of the statements. A step by step explanation of the problem is given in the test case. llvm-svn: 245176
2015-08-16 19:12:22 +08:00
@endposition = external global i32, align 4
@Bit = external global [0 x i32], align 4
@Init = external global [0 x i32], align 4
define void @maskgen() {
entry:
br label %for.body
for.body: ; preds = %for.body, %entry
br i1 undef, label %for.end.310, label %for.body
for.end.310: ; preds = %for.body
store i32 undef, i32* @endposition, align 4
%sub325 = sub i32 33, 0
%0 = load i32, i32* getelementptr inbounds ([0 x i32], [0 x i32]* @Init, i64 0, i64 0), align 4
br i1 false, label %for.cond.347.preheader, label %for.body.328.lr.ph
for.body.328.lr.ph: ; preds = %for.end.310
%1 = sub i32 34, 0
br label %for.body.328
for.body.328: ; preds = %for.body.328, %for.body.328.lr.ph
%indvars.iv546 = phi i64 [ %indvars.iv.next547, %for.body.328 ], [ 1, %for.body.328.lr.ph ]
%2 = phi i32 [ %or331, %for.body.328 ], [ %0, %for.body.328.lr.ph ]
%arrayidx330 = getelementptr inbounds [0 x i32], [0 x i32]* @Bit, i64 0, i64 %indvars.iv546
%3 = load i32, i32* %arrayidx330, align 4
%or331 = or i32 %3, %2
%indvars.iv.next547 = add nuw nsw i64 %indvars.iv546, 1
%lftr.wideiv = trunc i64 %indvars.iv.next547 to i32
%exitcond14 = icmp eq i32 %lftr.wideiv, %1
br i1 %exitcond14, label %for.cond.347.preheader, label %for.body.328
for.cond.347.preheader: ; preds = %for.cond.347.preheader, %for.body.328, %for.end.310
br i1 undef, label %if.end.471, label %for.cond.347.preheader
if.end.471: ; preds = %for.cond.347.preheader
ret void
}