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llvm-project/llvm/test/tools/llvm-extract/extract-block.ll

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[llvm-extract] Support extracting basic blocks Summary: Currently, there is no way to extract a basic block from a function easily. This patch extends llvm-extract to extract the specified basic block(s). Reviewers: loladiro, rafael, bogner Reviewed By: bogner Subscribers: hintonda, mgorny, qcolombet, llvm-commits Differential Revision: https://reviews.llvm.org/D41638 llvm-svn: 323266
2018-01-24 05:51:34 +08:00
; RUN: llvm-extract -S -bb foo:bb4 %s | FileCheck %s
BlockExtractor: Don’t delete functions directly Blocks may have function calls, so don’t erase functions directly to avoid erasing a function that has a user. llvm-svn: 327340
2018-03-13 06:28:18 +08:00
; CHECK: declare void @bar()
define void @bar() {
bb:
ret void
}
; CHECK-NOT: @unused()
define void @unused() {
bb:
ret void
}
[hot-cold-split] Name split functions with ".cold" suffix Summary: The current default of appending "_"+entry block label to the new extracted cold function breaks demangling. Change the deliminator from "_" to "." to enable demangling. Because the header block label will be empty for release compile code, use "extracted" after the "." when the label is empty. Additionally, add a mechanism for the client to pass in an alternate suffix applied after the ".", and have the hot cold split pass use "cold."+Count, where the Count is currently 1 but can be used to uniquely number multiple cold functions split out from the same function with D53588. Reviewers: sebpop, hiraditya Subscribers: llvm-commits, erik.pilkington Differential Revision: https://reviews.llvm.org/D53534 llvm-svn: 345178
2018-10-25 02:53:47 +08:00
; CHECK: @foo.bb4
BlockExtractor: Don’t delete functions directly Blocks may have function calls, so don’t erase functions directly to avoid erasing a function that has a user. llvm-svn: 327340
2018-03-13 06:28:18 +08:00
; CHECK: call void @bar()
[llvm-extract] Support extracting basic blocks Summary: Currently, there is no way to extract a basic block from a function easily. This patch extends llvm-extract to extract the specified basic block(s). Reviewers: loladiro, rafael, bogner Reviewed By: bogner Subscribers: hintonda, mgorny, qcolombet, llvm-commits Differential Revision: https://reviews.llvm.org/D41638 llvm-svn: 323266
2018-01-24 05:51:34 +08:00
; CHECK: %tmp5
define i32 @foo(i32 %arg) {
bb:
%tmp = alloca i32, align 4
%tmp1 = alloca i32, align 4
store i32 %arg, i32* %tmp1, align 4
%tmp2 = load i32, i32* %tmp1, align 4
%tmp3 = icmp sgt i32 %tmp2, 0
br i1 %tmp3, label %bb4, label %bb7
bb4: ; preds = %bb
BlockExtractor: Don’t delete functions directly Blocks may have function calls, so don’t erase functions directly to avoid erasing a function that has a user. llvm-svn: 327340
2018-03-13 06:28:18 +08:00
call void @bar()
[llvm-extract] Support extracting basic blocks Summary: Currently, there is no way to extract a basic block from a function easily. This patch extends llvm-extract to extract the specified basic block(s). Reviewers: loladiro, rafael, bogner Reviewed By: bogner Subscribers: hintonda, mgorny, qcolombet, llvm-commits Differential Revision: https://reviews.llvm.org/D41638 llvm-svn: 323266
2018-01-24 05:51:34 +08:00
%tmp5 = load i32, i32* %tmp1, align 4
%tmp6 = add nsw i32 %tmp5, 1
store i32 %tmp6, i32* %tmp1, align 4
store i32 %tmp6, i32* %tmp, align 4
br label %bb8
bb7: ; preds = %bb
store i32 0, i32* %tmp, align 4
br label %bb8
bb8: ; preds = %bb7, %bb4
%tmp9 = load i32, i32* %tmp, align 4
ret i32 %tmp9
}