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| author | Teresa Johnson <tejohnson@google.com> | 2017-06-13 20:44:08 +0000 |
|---|---|---|
| committer | Teresa Johnson <tejohnson@google.com> | 2017-06-13 20:44:08 +0000 |
| commit | 8015f885255c85810b7082e0585d40a1460fe35e (patch) | |
| tree | 9031f74d09779e717419b3f621838108ef0b1ffd /llvm/test/Transforms | |
| parent | 338663348a5ce7d3d72723f35c05dfeb908e95f7 (diff) | |
| download | bcm5719-llvm-8015f885255c85810b7082e0585d40a1460fe35e.tar.gz bcm5719-llvm-8015f885255c85810b7082e0585d40a1460fe35e.zip | |
[PGO] Update VP metadata after memory intrinsic optimization
Summary:
Leave an updated VP metadata on the fallback memcpy intrinsic after
specialization. This can be used for later possible expansion based on
the average of the remaining values.
Reviewers: davidxl
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D34164
llvm-svn: 305321
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/PGOProfile/memop_size_opt.ll | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/llvm/test/Transforms/PGOProfile/memop_size_opt.ll b/llvm/test/Transforms/PGOProfile/memop_size_opt.ll index 19a2b7ed293..e11f235a48e 100644 --- a/llvm/test/Transforms/PGOProfile/memop_size_opt.ll +++ b/llvm/test/Transforms/PGOProfile/memop_size_opt.ll @@ -38,7 +38,7 @@ for.body3: ; MEMOP_OPT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 1, i32 1, i1 false) ; MEMOP_OPT: br label %[[MERGE_LABEL:.*]] ; MEMOP_OPT: [[DEFAULT_LABEL]]: -; MEMOP_OPT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %conv, i32 1, i1 false){{[[:space:]]}} +; MEMOP_OPT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %conv, i32 1, i1 false), !prof [[NEWVP:![0-9]+]] ; MEMOP_OPT: br label %[[MERGE_LABEL]] ; MEMOP_OPT: [[MERGE_LABEL]]: ; MEMOP_OPT: switch i64 %conv, label %[[DEFAULT_LABEL2:.*]] [ @@ -48,11 +48,16 @@ for.body3: ; MEMOP_OPT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst2, i8* %src2, i64 1, i32 1, i1 false) ; MEMOP_OPT: br label %[[MERGE_LABEL2:.*]] ; MEMOP_OPT: [[DEFAULT_LABEL2]]: -; MEMOP_OPT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst2, i8* %src2, i64 %conv, i32 1, i1 false){{[[:space:]]}} +; MEMOP_OPT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst2, i8* %src2, i64 %conv, i32 1, i1 false), !prof [[NEWVP]] ; MEMOP_OPT: br label %[[MERGE_LABEL2]] ; MEMOP_OPT: [[MERGE_LABEL2]]: ; MEMOP_OPT: br label %for.inc ; MEMOP_OPT: [[SWITCH_BW]] = !{!"branch_weights", i32 457, i32 99} +; Should be 457 total left (original total count 556, minus 99 from specialized +; value 1, which is removed from VP array. Also, we only end up with 5 total +; values, since the default max number of promotions is 5 and therefore +; the rest of the values are ignored when extracting the VP metadata. +; MEMOP_OPT: [[NEWVP]] = !{!"VP", i32 1, i64 457, i64 2, i64 88, i64 3, i64 77, i64 9, i64 72, i64 4, i64 66} for.inc: %inc = add nsw i32 %j.0, 1 |
