71f8b441ed
By storing possible test vectors instead of combinations of conditions, the restriction is dramatically relaxed. This introduces two options to `cc1`: * `-fmcdc-max-conditions=32767` * `-fmcdc-max-test-vectors=2147483646` This change makes coverage mapping, profraw, and profdata incompatible with Clang-18. - Bitmap semantics changed. It is incompatible with previous format. - `BitmapIdx` in `Decision` points to the end of the bitmap. - Bitmap is packed per function. - `llvm-cov` can understand `profdata` generated by `llvm-profdata-18`. RFC: https://discourse.llvm.org/t/rfc-coverage-new-algorithm-and-file-format-for-mc-dc/76798 -- Change(s) since llvmorg-19-init-14288-g7ead2d8c7e91 - Update compiler-rt/test/profile/ContinuousSyncMode/image-with-mcdc.c
48 lines
2.1 KiB
LLVM
48 lines
2.1 KiB
LLVM
;; Check that all data variables are created for instrumented functions even
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;; when those functions are fully inlined into their instrumented callers prior
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;; to the instrprof pass.
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; RUN: opt %s -passes='instrprof' -S | FileCheck %s -check-prefix=NOINLINE
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; RUN: opt %s -passes='cgscc(inline),instrprof' -S | FileCheck %s -check-prefix=INLINEFIRST
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; RUN: opt %s -passes='instrprof,cgscc(inline)' -S | FileCheck %s -check-prefix=INLINEAFTER
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target triple = "x86_64-unknown-linux-gnu"
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; INLINEFIRST: @__profd_foo = private global{{.*}}zeroinitializer, i32 21
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; INLINEFIRST: @__profd_bar = private global{{.*}}zeroinitializer, i32 23
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; INLINEFIRST: @__profd_foobar = private global{{.*}}zeroinitializer, i32 99
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; INLINEAFTER: @__profd_foobar = private global{{.*}}zeroinitializer, i32 99
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; INLINEAFTER: @__profd_foo = private global{{.*}}zeroinitializer, i32 21
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; INLINEAFTER: @__profd_bar = private global{{.*}}zeroinitializer, i32 23
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; NOINLINE: @__profd_foobar = private global{{.*}}zeroinitializer, i32 99
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; NOINLINE: @__profd_foo = private global{{.*}}zeroinitializer, i32 21
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; NOINLINE: @__profd_bar = private global{{.*}}zeroinitializer, i32 23
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declare void @llvm.instrprof.increment(ptr %0, i64 %1, i32 %2, i32 %3)
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declare void @llvm.instrprof.mcdc.parameters(ptr %0, i64 %1, i32 %2)
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@__profn_foobar = private constant [6 x i8] c"foobar"
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@__profn_foo = private constant [3 x i8] c"foo"
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@__profn_bar = private constant [3 x i8] c"bar"
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define internal void @foobar() {
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call void @llvm.instrprof.increment(ptr @__profn_foobar, i64 123456, i32 32, i32 0)
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call void @llvm.instrprof.mcdc.parameters(ptr @__profn_foobar, i64 123456, i32 792)
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ret void
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}
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define void @foo() {
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call void @llvm.instrprof.increment(ptr @__profn_foo, i64 123456, i32 32, i32 0)
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call void @llvm.instrprof.mcdc.parameters(ptr @__profn_foo, i64 123456, i32 168)
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call void @foobar()
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ret void
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}
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define void @bar() {
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call void @llvm.instrprof.increment(ptr @__profn_bar, i64 123456, i32 32, i32 0)
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call void @llvm.instrprof.mcdc.parameters(ptr @__profn_bar, i64 123456, i32 184)
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call void @foobar()
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ret void
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}
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