[LLVMbugs] [Bug 4459] New: Stackifier asserts

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Fri Jun 26 09:21:09 PDT 2009


           Summary: Stackifier asserts
           Product: tools
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: llc
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: rafael.espindola at gmail.com
                CC: llvmbugs at cs.uiuc.edu

Running llc -march=x86 on 

declare double @ceil(double)

declare void @test(i32)

define void @test2() {
        %0 = call double @ceil(double undef)
        %1 = fptosi double %0 to i32
        call void asm sideeffect "fistpl $0",
"=*m,{st},~{dirflag},~{fpsr},~{flags},~{st}"(i32* undef, double undef)
        call void @test(i32 %1 )


void<unnamed>::FPS::moveToTop(unsigned int,
llvm::ilist_iterator<llvm::MachineInstr>): Assertion `RegMap[RegOnTop] <
StackTop' failed.

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