llvm/test/CodeGen/Mips/insn-zero-size-bb.ll
Jun Bum Lim e7f0062250 Enhance BranchProbabilityInfo::calcUnreachableHeuristics for InvokeInst
This is recommit of r256028 with minor fixes in unittests:
  CodeGen/Mips/eh.ll
  CodeGen/Mips/insn-zero-size-bb.ll

Original commit message:

When identifying blocks post-dominated by an unreachable-terminated block
in BranchProbabilityInfo, consider only the edge to the normal destination
block if the terminator is InvokeInst and let calcInvokeHeuristics() decide
edge weights for the InvokeInst.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256202 91177308-0d34-0410-b5e6-96231b3b80d8
2015-12-21 22:00:51 +00:00

28 lines
726 B
LLVM

; RUN: llc < %s -march=mips -mcpu=mips32 | FileCheck %s
; RUN: llc < %s -march=mips -mcpu=mips32r3 -mattr=+micromips | FileCheck %s
; RUN: llc < %s -march=mips -mattr=mips16 | FileCheck %s
; Verify that we emit the .insn directive for zero-sized (empty) basic blocks.
; This only really matters for microMIPS and MIPS16.
declare i32 @foo(...)
declare void @bar()
define void @main() personality i8* bitcast (i32 (...)* @foo to i8*) {
entry:
invoke void @bar() #0
to label %unreachable unwind label %return
unreachable:
; CHECK: {{.*}}: # %unreachable
; CHECK-NEXT: .insn
unreachable
return:
%0 = landingpad { i8*, i32 }
catch i8* null
ret void
}
attributes #0 = { noreturn }