[llvm-bugs] [Bug 48983] New: [Sparc] Failure to ever optimize out function prologue

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48983

            Bug ID: 48983
           Summary: [Sparc] Failure to ever optimize out function prologue
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: Sparc
          Assignee: unassignedbugs at nondot.org
          Reporter: gabravier at gmail.com
                CC: llvm-bugs at lists.llvm.org

void f(){}

With -O3, GCC outputs this:

f():
  jmp %o7+8
  nop

LLVM outputs this:

f():
  save %sp, -128, %sp
  ret
  restore

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