[LLVMbugs] [Bug 8811] New: Some ARM instructions (ADDri, SUBri, t2ANDri, t2SUBri, others?) are generated with a def for CPSR

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=8811

           Summary: Some ARM instructions (ADDri, SUBri, t2ANDri, t2SUBri,
                    others?) are generated with a def for CPSR
           Product: libraries
           Version: trunk
          Platform: Macintosh
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: ARM
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: zwarich at apple.com
                CC: llvmbugs at cs.uiuc.edu


On some tests in CodeGen/ARM, instructions are generated with defs for CPSR.
For example, running the verifier after LiveIntervals gives an error on this
example:

llc < /Volumes/Data/llvm/test/CodeGen/ARM/2007-05-23-BadPreIndexedStore.ll
-march=arm 

*** Bad machine code: Explicit operand marked as def ***
- function:    shape_path_alloc
- basic block: bb140 0x10284b348 (BB#4) [136L;232L)
- instruction: 180L    %reg16386<def> = ADDri %reg16385<kill>, 2, pred:14,
pred:%reg0, opt:%CPSR<def>; GPR:%reg16386,16385
- operand 5:   %CPSR<def>
LLVM ERROR: Found 1 machine code errors.

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