llvm-project/clang/test/Profile/c-unreachable-after-switch.c
Rong Xu 9837ef56b4 [PGO] cc1 option name change for profile instrumentation
This patch changes cc1 option -fprofile-instr-generate to an enum option
-fprofile-instrument={clang|none}. It also changes cc1 options
-fprofile-instr-generate= to -fprofile-instrument-path=.
The driver level option -fprofile-instr-generate and -fprofile-instr-generate=
remain intact. This change will pave the way to integrate new PGO
instrumentation in IR level.

Review: http://reviews.llvm.org/D16730
llvm-svn: 259811
2016-02-04 18:39:09 +00:00

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// RUN: %clang_cc1 -O3 -triple x86_64-apple-macosx10.10 -main-file-name c-unreachable-after-switch.c %s -o - -emit-llvm -fprofile-instrument=clang | FileCheck %s
// CHECK: @[[C:__profc_foo]] = private global [3 x i64] zeroinitializer
// CHECK-LABEL: @foo()
// CHECK: store {{.*}} @[[C]], i64 0, i64 0
void foo() {
// CHECK: store {{.*}} @[[C]], i64 0, i64 2
switch (0) {
default:
return;
}
// We shouldn't emit the unreachable counter. This used to crash in GlobalDCE.
// CHECK-NOT: store {{.*}} @[[SWC]], i64 0, i64 1}
}