forked from OSchip/llvm-project
22db17cf43
This broke the Chromium build; see PR36238.
> This patch is an enhancement to propagate dbg.value information when
> Phis are created on behalf of LCSSA. I noticed a case where a value
> carried across a loop was reported as <optimized out>.
>
> Specifically this case:
>
> int bar(int x, int y) {
> return x + y;
> }
>
> int foo(int size) {
> int val = 0;
> for (int i = 0; i < size; ++i) {
> val = bar(val, i); // Both val and i are correct
> }
> return val; // <optimized out>
> }
>
> In the above case, after all of the interesting computation completes
> our value is reported as "optimized out." This change will add a
> dbg.value to correct this.
>
> This patch also moves the dbg.value insertion routine from
> LoopRotation.cpp into Local.cpp, so that we can share it in both places
> (LoopRotation and LCSSA).
>
> Patch by Matt Davis!
>
> Differential Revision: https://reviews.llvm.org/D42551
llvm-svn: 324247
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| .. | ||
| 2006-06-03-IncorrectIDFPhis.ll | ||
| 2006-06-12-MultipleExitsSameBlock.ll | ||
| 2006-07-09-NoDominator.ll | ||
| 2006-10-31-UnreachableBlock-2.ll | ||
| 2006-10-31-UnreachableBlock.ll | ||
| 2007-07-12-LICM-2.ll | ||
| 2007-07-12-LICM-3.ll | ||
| 2007-07-12-LICM.ll | ||
| basictest.ll | ||
| indirectbr.ll | ||
| invoke-dest.ll | ||
| mixed-catch.ll | ||
| pr28424.ll | ||
| pr28608.ll | ||
| unreachable-use.ll | ||
| unused-phis.ll | ||