test/CodeGen/PowerPC/ppc64-sibcall-shrinkwrap.ll

   1 ; RUN: llc -relocation-model=static -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -disable-ppc-sco=false --enable-shrink-wrap=false | FileCheck %s -check-prefix=CHECK-SCO-ONLY
   2 ; RUN: llc -relocation-model=static -verify-machineinstrs < %s -mtriple=powerpc64-unknown-linux-gnu -disable-ppc-sco=false --enable-shrink-wrap=true | FileCheck %s -check-prefix=CHECK-SCO-ONLY
   3 ; RUN: llc -relocation-model=static -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu -disable-ppc-sco=false --enable-shrink-wrap=false | FileCheck %s -check-prefix=CHECK-SCO-ONLY
   4 ; RUN: llc -relocation-model=static -verify-machineinstrs < %s -mtriple=powerpc64le-unknown-linux-gnu -disable-ppc-sco=false --enable-shrink-wrap=true | FileCheck %s -check-prefix=CHECK-SCO-ONLY
   5 ; Edit: D63152 prevents stack popping before loads and stores, so shrink-wrap does nothing here
   6 %"class.clang::NamedDecl" = type { i32 }
   7 declare void @__assert_fail();
   8
   9 define i8 @_ZNK5clang9NamedDecl23getLinkageAndVisibilityEv(
  10     %"class.clang::NamedDecl"* %this) {
  11 entry:
  12   %tobool = icmp eq %"class.clang::NamedDecl"* %this, null
  13   br i1 %tobool, label %cond.false, label %exit
  14
  15 cond.false:
  16   tail call void @__assert_fail()
  17   unreachable
  18
  19 exit:
  20   %DeclKind = getelementptr inbounds
  21                             %"class.clang::NamedDecl",
  22                             %"class.clang::NamedDecl"* %this, i64 0, i32 0
  23   %bf.load = load i32, i32* %DeclKind, align 4
  24   %call.i = tail call i8 @LVComputationKind(
  25     %"class.clang::NamedDecl"* %this,
  26     i32 %bf.load)
  27   ret i8 %call.i
  28
  29 ; CHECK-SCO-SHRK-LABEL: _ZNK5clang9NamedDecl23getLinkageAndVisibilityEv:
  30 ; CHECK-SCO-SHRK: b LVComputationKind
  31 ; CHECK-SCO-SHRK: #TC_RETURNd8
  32 ; CHECK-SCO-SHRK: stdu 1, -{{[0-9]+}}(1)
  33 ; CHECK-SCO-SHRK: bl __assert_fail
  34 ;
  35 ; CHECK-SCO-ONLY-LABEL: _ZNK5clang9NamedDecl23getLinkageAndVisibilityEv:
  36 ; CHECK-SCO-ONLY: stdu 1, -{{[0-9]+}}(1)
  37 ; CHECK-SCO-ONLY: b LVComputationKind
  38 ; CHECK-SCO-ONLY: #TC_RETURNd8
  39 ; CHECK-SCO-ONLY: bl __assert_fail
  40 }
  41
  42 define fastcc i8 @LVComputationKind(
  43     %"class.clang::NamedDecl"* %D,
  44     i32 %computation) {
  45   ret i8 0
  46 }