diff options
Diffstat (limited to 'llvm/test/Transforms/Inline/function-count-update-3.ll')
-rw-r--r-- | llvm/test/Transforms/Inline/function-count-update-3.ll | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/llvm/test/Transforms/Inline/function-count-update-3.ll b/llvm/test/Transforms/Inline/function-count-update-3.ll deleted file mode 100644 index 215d64175fa..00000000000 --- a/llvm/test/Transforms/Inline/function-count-update-3.ll +++ /dev/null @@ -1,78 +0,0 @@ -; RUN: opt < %s -passes='require<profile-summary>,cgscc(inline)' -S -inline-threshold=50 | FileCheck %s - -; This tests that the function count of a function gets properly scaled after -; inlining a call chain leading to the function. -; Function a calls c with count 200 (C1) -; Function c calls e with count 250 (C2) -; Entry count of e is 500 (C3) -; Entry count of c is 500 (C4) -; Function b calls c with count 300 (C5) -; c->e inlining does not happen since the cost exceeds threshold. -; c then inlined into a. -; e now gets inlined into a (through c) since the branch condition in e is now -; known and hence the cost gets reduced. -; Estimated count of a->e callsite = C2 * (C1 / C4) -; Estimated count of a->e callsite = 250 * (200 / 500) = 100 -; Remaining count of e = C3 - 100 = 500 - 100 = 400 -; Remaining count of c = C4 - C1 - C5 = 500 - 200 - 300 = 0 - -@data = external global i32 - -define i32 @a(i32 %a1) !prof !1 { - %a2 = call i32 @c(i32 %a1, i32 1) - ret i32 %a2 -} - -define i32 @b(i32 %b1) !prof !2 { - %b2 = call i32 @c(i32 %b1, i32 %b1) - ret i32 %b2 -} - -declare void @ext(); - -; CHECK: @c(i32 %c1, i32 %c100) !prof [[COUNT1:![0-9]+]] -define i32 @c(i32 %c1, i32 %c100) !prof !3 { - call void @ext() - %cond = icmp sle i32 %c1, 1 - br i1 %cond, label %cond_true, label %cond_false - -cond_false: - ret i32 0 - -cond_true: - %c11 = call i32 @e(i32 %c100) - ret i32 %c11 -} - - -; CHECK: @e(i32 %c1) !prof [[COUNT2:![0-9]+]] -define i32 @e(i32 %c1) !prof !4 { - %cond = icmp sle i32 %c1, 1 - br i1 %cond, label %cond_true, label %cond_false - -cond_false: - call void @ext() - %c2 = load i32, i32* @data, align 4 - %c3 = add i32 %c1, %c2 - %c4 = mul i32 %c3, %c2 - %c5 = add i32 %c4, %c2 - %c6 = mul i32 %c5, %c2 - %c7 = add i32 %c6, %c2 - %c8 = mul i32 %c7, %c2 - %c9 = add i32 %c8, %c2 - %c10 = mul i32 %c9, %c2 - ret i32 %c10 - -cond_true: - ret i32 0 -} - -!llvm.module.flags = !{!0} -; CHECK: [[COUNT1]] = !{!"function_entry_count", i64 0} -; CHECK: [[COUNT2]] = !{!"function_entry_count", i64 400} -!0 = !{i32 1, !"MaxFunctionCount", i32 5000} -!1 = !{!"function_entry_count", i64 200} -!2 = !{!"function_entry_count", i64 300} -!3 = !{!"function_entry_count", i64 500} -!4 = !{!"function_entry_count", i64 500} - |