[LLVMbugs] [Bug 7236] New: instcombine broken with arm_aapcscc

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed May 26 13:32:45 PDT 2010


           Summary: instcombine broken with  arm_aapcscc
           Product: libraries
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: Scalar Optimizations
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rafael.espindola at gmail.com
                CC: llvmbugs at cs.uiuc.edu

$ cat test.ll
define arm_aapcscc double @foo() {
  ret double 0.0

define arm_aapcscc i1 @bar() {
  %t7 = call double @foo()
  %t8 = fcmp ogt double %t7, 1.000000e-03
  ret i1 %t8
$ opt  -instcombine  test.ll -o - | llvm-dis
; ModuleID = '<stdin>'

define arm_aapcscc double @foo() {
  ret double 0.000000e+00

define arm_aapcscc i1 @bar() {
  store i1 true, i1* undef
  ret i1 false

Why the store to undef?!? Removing arm_aapcscc fixes the issue.

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