[llvm-bugs] [Bug 47363] New: opt -sroa -S produces code that the ll parser doesn't accept

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47363

            Bug ID: 47363
           Summary: opt -sroa -S produces code that the ll parser doesn't
                    accept
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Scalar Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: mikael.holmen at ericsson.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 23906
  --> https://bugs.llvm.org/attachment.cgi?id=23906&action=edit
bbi-36469_x86.ll reproducer

Reproduce with:
 opt -sroa -o - bbi-36469_x86.ll -S | opt -S

Result:
 /data/repo/master/llvm/build-all/bin/opt: <stdin>:11:73: error: expected value
token
  call void @llvm.dbg.value(metadata <2 x { double, double }*> <{ double,
double }* inttoptr (i8 -1 to { double, double }*), { double, double }* inttoptr
(i8 -1 to { double, double }*)>, metadata !11, metadata
!DIExpression(DW_OP_LLVM_fragment, 8, 16)), !dbg !18
                                                                        ^
So the ll parser does not like the constant expressions in the dbg.value calls
that sroa produces.

If we instead run
 opt -sroa -o - bbi-36469_x86.ll | opt -S

it ends succesfully.

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