[PATCH] D157518: Avoid running optimization passes in frontend test
Matthias Braun via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Wed Aug 9 09:39:52 PDT 2023
MatzeB created this revision.
MatzeB added reviewers: wenlei, Mordante, aeubanks, hoy.
Herald added subscribers: modimo, mcrosier.
Herald added a project: All.
MatzeB requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
Only run "lower-expect" but no other optimization passes in test for likely/unlikely annotations.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D157518
Files:
clang/test/CodeGenCXX/attr-likelihood-if-branch-weights.cpp
Index: clang/test/CodeGenCXX/attr-likelihood-if-branch-weights.cpp
===================================================================
--- clang/test/CodeGenCXX/attr-likelihood-if-branch-weights.cpp
+++ clang/test/CodeGenCXX/attr-likelihood-if-branch-weights.cpp
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 -O1 -emit-llvm %s -o - -triple=x86_64-linux-gnu | FileCheck -DLIKELY=2000 -DUNLIKELY=1 %s
-// RUN: %clang_cc1 -O1 -emit-llvm %s -triple=x86_64-linux-gnu -mllvm -likely-branch-weight=99 -mllvm -unlikely-branch-weight=42 -o - | FileCheck -DLIKELY=99 -DUNLIKELY=42 %s
+// RUN: %clang_cc1 -O1 -disable-llvm-passes -emit-llvm %s -o - -triple=x86_64-linux-gnu | opt -S -passes=lower-expect | FileCheck -DLIKELY=2000 -DUNLIKELY=1 %s
+// RUN: %clang_cc1 -O1 -disable-llvm-passes -emit-llvm %s -triple=x86_64-linux-gnu -o - | opt -S -passes=lower-expect -likely-branch-weight=99 -unlikely-branch-weight=42 | FileCheck -DLIKELY=99 -DUNLIKELY=42 %s
extern volatile bool b;
extern volatile int i;
@@ -69,7 +69,7 @@
// CHECK-NOT: br {{.*}} %if.end{{.*}} !prof
if (b)
- // CHECK: br {{.*}} !prof ![[PROF_LIKELY]]
+ // CHECK: br {{.*}} !prof ![[PROF_UNLIKELY]]
while (B())
[[unlikely]] { b = false; }
}
@@ -97,7 +97,7 @@
// CHECK-NOT: br {{.*}} %if.end{{.*}} !prof
if (b)
- // CHECK: br {{.*}} !prof ![[PROF_LIKELY]]
+ // CHECK: br {{.*}} !prof ![[PROF_UNLIKELY]]
for (; B();)
[[unlikely]] {}
}
@@ -144,5 +144,5 @@
}
}
-// CHECK: ![[PROF_LIKELY]] = !{!"branch_weights", i32 [[UNLIKELY]], i32 [[LIKELY]]}
-// CHECK: ![[PROF_UNLIKELY]] = !{!"branch_weights", i32 [[LIKELY]], i32 [[UNLIKELY]]}
+// CHECK: ![[PROF_LIKELY]] = !{!"branch_weights", i32 [[LIKELY]], i32 [[UNLIKELY]]}
+// CHECK: ![[PROF_UNLIKELY]] = !{!"branch_weights", i32 [[UNLIKELY]], i32 [[LIKELY]]}
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