mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 02:52:53 +02:00
0fc66f4b8f
LLVM optimization passes may reduce a profiled target expression to a constant. Removing runtime calls at such instrumentation points would help speedup the runtime of the instrumented program. llvm-svn: 266229
20 lines
923 B
LLVM
20 lines
923 B
LLVM
; RUN: opt < %s -adce | FileCheck %s
|
|
; RUN: opt < %s -passes=adce | FileCheck %s
|
|
|
|
; Verify that a call to instrument a constant is deleted.
|
|
|
|
@__profc_foo = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8
|
|
@__profd_foo = private global { i64, i64, i64*, i8*, i8*, i32, [1 x i16] } { i64 6699318081062747564, i64 0, i64* getelementptr inbounds ([1 x i64], [1 x i64]* @__profc_foo, i32 0, i32 0), i8* bitcast (i32 ()* @foo to i8*), i8* null, i32 1, [1 x i16] [i16 1] }, section "__llvm_prf_data", align 8
|
|
|
|
define i32 @foo() {
|
|
; CHECK-NOT: __llvm_profile_instrument_target
|
|
entry:
|
|
tail call void @__llvm_profile_instrument_target(i64 ptrtoint (i32 (i32)* @bar to i64), i8* bitcast ({ i64, i64, i64*, i8*, i8*, i32, [1 x i16] }* @__profd_foo to i8*), i32 0)
|
|
%call = tail call i32 @bar(i32 21)
|
|
ret i32 %call
|
|
}
|
|
|
|
declare i32 @bar(i32)
|
|
|
|
declare void @__llvm_profile_instrument_target(i64, i8*, i32)
|