[LLVMbugs] [Bug 16146] New: gdb.base__call-ar-st.exp fails after pre-RA-sched=source fixes

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=16146

            Bug ID: 16146
           Summary: gdb.base__call-ar-st.exp fails after
                    pre-RA-sched=source fixes
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: atrick at apple.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

One of the gdb tests began failing after Xiaoyi's source order scheduler fixes:
r182704. These fixes should greatly improve debug info at -O2. They should not
affect -O0 unless it falls back to SelectionDAG.

http://lab.llvm.org:8011/builders/clang-x86_64-ubuntu-gdb-75/builds/5248

Test case: gdb.base__call-ar-st.exp

Compile command:
Executing on host:
/home/buildslave/osuosl_slave/clang-x86_64-ubuntu-gdb-75/llvm.install.1/bin/clang
../../../src/gdb/testsuite/gdb.base/call-ar-st.c  -w -fno-limit-debug-info -g 
-lm   -o
/home/buildslave/osuosl_slave/clang-x86_64-ubuntu-gdb-75/clang-tests/build/gdb/testsuite/gdb.base/call-ar-st
   (timeout = 300)

Output:
Temporary breakpoint 3, main () at
../../../src/gdb/testsuite/gdb.base/call-ar-st.c:1216
1216      print_double_array(double_array);
(gdb) FAIL: gdb.base/call-ar-st.exp: continue to 1216 (pattern 1)

Adrian pointed me to an old copy of the test, but I haven't been able to
reproduce the problem with it:
http://opensource.apple.com/source/gdb/gdb-1824/src/gdb/testsuite/gdb.base/call-ar-st.c

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