dc40be75f8
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
44 lines
1.4 KiB
LLVM
44 lines
1.4 KiB
LLVM
; RUN: echo 'foo bb9' > %t
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; RUN: echo 'foo bb20' >> %t
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; RUN: opt -S -extract-blocks -extract-blocks-file=%t %s | FileCheck %s --check-prefix=CHECK-NO-ERASE
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; RUN: opt -S -extract-blocks -extract-blocks-file=%t -extract-blocks-erase-funcs %s | FileCheck %s --check-prefix=CHECK-ERASE
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; CHECK-NO-ERASE: @foo(
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; CHECK-NO-ERASE: @foo_bb9(
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; CHECK-NO-ERASE: @foo_bb20(
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; CHECK-ERASE-NOT: @foo(
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; CHECK-ERASE: @foo_bb9(
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; CHECK-ERASE: @foo_bb20(
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define i32 @foo(i32 %arg, i32 %arg1) {
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bb:
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%tmp5 = icmp sgt i32 %arg, 0
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%tmp8 = icmp sgt i32 %arg1, 0
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%or.cond = and i1 %tmp5, %tmp8
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br i1 %or.cond, label %bb9, label %bb14
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bb9: ; preds = %bb
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%tmp12 = shl i32 %arg1, 2
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%tmp13 = add nsw i32 %tmp12, %arg
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br label %bb30
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bb14: ; preds = %bb
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%0 = and i32 %arg1, %arg
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%1 = icmp slt i32 %0, 0
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br i1 %1, label %bb20, label %bb26
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bb20: ; preds = %bb14
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%tmp22 = mul nsw i32 %arg, 3
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%tmp24 = sdiv i32 %arg1, 6
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%tmp25 = add nsw i32 %tmp24, %tmp22
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br label %bb30
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bb26: ; preds = %bb14
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%tmp29 = sub nsw i32 %arg, %arg1
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br label %bb30
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bb30: ; preds = %bb26, %bb20, %bb9
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%tmp.0 = phi i32 [ %tmp13, %bb9 ], [ %tmp25, %bb20 ], [ %tmp29, %bb26 ]
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ret i32 %tmp.0
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}
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