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4c29cfd3e4
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
30 lines
800 B
LLVM
30 lines
800 B
LLVM
; RUN: llvm-extract -S -bb foo:bb4 %s | FileCheck %s
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; CHECK: @foo_bb4
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; CHECK: %tmp5
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define i32 @foo(i32 %arg) {
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bb:
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%tmp = alloca i32, align 4
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%tmp1 = alloca i32, align 4
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store i32 %arg, i32* %tmp1, align 4
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%tmp2 = load i32, i32* %tmp1, align 4
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%tmp3 = icmp sgt i32 %tmp2, 0
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br i1 %tmp3, label %bb4, label %bb7
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bb4: ; preds = %bb
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%tmp5 = load i32, i32* %tmp1, align 4
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%tmp6 = add nsw i32 %tmp5, 1
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store i32 %tmp6, i32* %tmp1, align 4
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store i32 %tmp6, i32* %tmp, align 4
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br label %bb8
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bb7: ; preds = %bb
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store i32 0, i32* %tmp, align 4
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br label %bb8
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bb8: ; preds = %bb7, %bb4
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%tmp9 = load i32, i32* %tmp, align 4
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ret i32 %tmp9
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}
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