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| author | Volkan Keles <vkeles@apple.com> | 2018-01-23 21:51:34 +0000 |
|---|---|---|
| committer | Volkan Keles <vkeles@apple.com> | 2018-01-23 21:51:34 +0000 |
| commit | dc40be75f8537e036b593f454765940e69ef7025 (patch) | |
| tree | 0e01c174c0301c8793ac3db35f3de778124e452a /llvm/test/tools/llvm-extract/extract-block.ll | |
| parent | bf3c39877ee3c0b593c3de21e67d55fa7d804621 (diff) | |
| download | bcm5719-llvm-dc40be75f8537e036b593f454765940e69ef7025.tar.gz bcm5719-llvm-dc40be75f8537e036b593f454765940e69ef7025.zip | |
[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
Diffstat (limited to 'llvm/test/tools/llvm-extract/extract-block.ll')
| -rw-r--r-- | llvm/test/tools/llvm-extract/extract-block.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-extract/extract-block.ll b/llvm/test/tools/llvm-extract/extract-block.ll new file mode 100644 index 00000000000..761ed3268aa --- /dev/null +++ b/llvm/test/tools/llvm-extract/extract-block.ll @@ -0,0 +1,29 @@ +; RUN: llvm-extract -S -bb foo:bb4 %s | FileCheck %s + +; CHECK: @foo_bb4 +; 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 + %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 +} + |
