forked from OSchip/llvm-project
115 lines
4.0 KiB
LLVM
115 lines
4.0 KiB
LLVM
; RUN: opt -passes="function(ee-instrument),cgscc(inline),function(post-inline-ee-instrument)" -S < %s | FileCheck %s
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; Running the passes twice should not result in more instrumentation.
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; RUN: opt -passes="function(ee-instrument),function(ee-instrument),cgscc(inline),function(post-inline-ee-instrument),function(post-inline-ee-instrument)" -S < %s | FileCheck %s
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-bgq-linux"
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define void @leaf_function() #0 {
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entry:
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ret void
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; CHECK-LABEL: define void @leaf_function()
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; CHECK: entry:
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; CHECK-NEXT: call void @mcount()
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; CHECK-NEXT: %0 = call i8* @llvm.returnaddress(i32 0)
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; CHECK-NEXT: call void @__cyg_profile_func_enter(i8* bitcast (void ()* @leaf_function to i8*), i8* %0)
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; CHECK-NEXT: %1 = call i8* @llvm.returnaddress(i32 0)
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; CHECK-NEXT: call void @__cyg_profile_func_exit(i8* bitcast (void ()* @leaf_function to i8*), i8* %1)
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; CHECK-NEXT: ret void
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}
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define void @root_function() #0 {
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entry:
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call void @leaf_function()
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ret void
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; CHECK-LABEL: define void @root_function()
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; CHECK: entry:
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; CHECK-NEXT: call void @mcount()
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; CHECK-NEXT %0 = call i8* @llvm.returnaddress(i32 0)
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; CHECK-NEXT call void @__cyg_profile_func_enter(i8* bitcast (void ()* @root_function to i8*), i8* %0)
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; Entry and exit calls, inlined from @leaf_function()
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; CHECK-NEXT %1 = call i8* @llvm.returnaddress(i32 0)
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; CHECK-NEXT call void @__cyg_profile_func_enter(i8* bitcast (void ()* @leaf_function to i8*), i8* %1)
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; CHECK-NEXT %2 = call i8* @llvm.returnaddress(i32 0)
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; CHECK-NEXT call void @__cyg_profile_func_exit(i8* bitcast (void ()* @leaf_function to i8*), i8* %2)
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; CHECK-NEXT %3 = call i8* @llvm.returnaddress(i32 0)
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; CHECK-NEXT call void @__cyg_profile_func_exit(i8* bitcast (void ()* @root_function to i8*), i8* %3)
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; CHECK-NEXT ret void
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}
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; The mcount function has many different names.
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define void @f1() #1 { entry: ret void }
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; CHECK-LABEL: define void @f1
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; CHECK: call void @.mcount
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define void @f2() #2 { entry: ret void }
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; CHECK-LABEL: define void @f2
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; CHECK: call void @"\01__gnu_mcount_nc"
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define void @f3() #3 { entry: ret void }
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; CHECK-LABEL: define void @f3
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; CHECK: call void @"\01_mcount"
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define void @f4() #4 { entry: ret void }
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; CHECK-LABEL: define void @f4
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; CHECK: call void @"\01mcount"
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define void @f5() #5 { entry: ret void }
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; CHECK-LABEL: define void @f5
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; CHECK: call void @__mcount
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define void @f6() #6 { entry: ret void }
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; CHECK-LABEL: define void @f6
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; CHECK: call void @_mcount
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define void @f7() #7 { entry: ret void }
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; CHECK-LABEL: define void @f7
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; CHECK: call void @__cyg_profile_func_enter_bare
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; Treat musttail calls as terminators; inserting between the musttail call and
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; ret is not allowed.
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declare i32* @tailcallee()
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define i32* @tailcaller() #8 {
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%1 = musttail call i32* @tailcallee()
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ret i32* %1
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; CHECK-LABEL: define i32* @tailcaller
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; CHECK: call void @__cyg_profile_func_exit
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; CHECK: musttail call i32* @tailcallee
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; CHECK: ret
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}
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define i8* @tailcaller2() #8 {
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%1 = musttail call i32* @tailcallee()
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%2 = bitcast i32* %1 to i8*
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ret i8* %2
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; CHECK-LABEL: define i8* @tailcaller2
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; CHECK: call void @__cyg_profile_func_exit
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; CHECK: musttail call i32* @tailcallee
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; CHECK: bitcast
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; CHECK: ret
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}
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; The attributes are "consumed" when the instrumentation is inserted.
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; CHECK: attributes
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; CHECK-NOT: instrument-function
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attributes #0 = { "instrument-function-entry-inlined"="mcount" "instrument-function-entry"="__cyg_profile_func_enter" "instrument-function-exit"="__cyg_profile_func_exit" }
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attributes #1 = { "instrument-function-entry-inlined"=".mcount" }
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attributes #2 = { "instrument-function-entry-inlined"="\01__gnu_mcount_nc" }
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attributes #3 = { "instrument-function-entry-inlined"="\01_mcount" }
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attributes #4 = { "instrument-function-entry-inlined"="\01mcount" }
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attributes #5 = { "instrument-function-entry-inlined"="__mcount" }
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attributes #6 = { "instrument-function-entry-inlined"="_mcount" }
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attributes #7 = { "instrument-function-entry-inlined"="__cyg_profile_func_enter_bare" }
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attributes #8 = { "instrument-function-exit"="__cyg_profile_func_exit" }
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