derek.holloway
7502bf64a4
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72 lines
2.6 KiB
LLVM
72 lines
2.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
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; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
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; When the an outlined section contains a PHINode with an incoming block
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; outside of the region, the predecessors to be handled specially to ensure that
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; a global value is properly assigned. This ensures that there is no crash
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; in that situation.
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define void @fn1() local_unnamed_addr #0 {
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entry:
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br label %block_1
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block_1:
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%a = phi i32 [ 0, %block_2], [ 1, %entry ]
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br i1 0, label %block_3, label %block_2
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block_2:
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br i1 0, label %block_3, label %block_1
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block_3:
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%b = phi i32 [ 0, %block_2 ], [ 1, %block_1 ]
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br label %block_4
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block_4:
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%c = phi i32 [ 0, %block_5 ], [ 1, %block_3 ]
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br i1 0, label %block_6, label %block_5
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block_5:
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br i1 0, label %block_6, label %block_4
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block_6:
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unreachable
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}
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; CHECK-LABEL: @fn1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[B_CE_LOC:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[B_CE_LOC]])
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; CHECK-NEXT: call void @outlined_ir_func_0(ptr [[B_CE_LOC]], i32 0)
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; CHECK-NEXT: [[B_CE_RELOAD:%.*]] = load i32, ptr [[B_CE_LOC]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[B_CE_LOC]])
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; CHECK-NEXT: br label [[BLOCK_3:%.*]]
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; CHECK: block_3:
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; CHECK-NEXT: [[B:%.*]] = phi i32 [ [[B_CE_RELOAD]], [[ENTRY:%.*]] ]
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; CHECK-NEXT: call void @outlined_ir_func_0(ptr null, i32 -1)
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; CHECK-NEXT: br label [[BLOCK_6:%.*]]
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; CHECK: block_6:
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; CHECK-NEXT: unreachable
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;
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;
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; CHECK-LABEL: define internal void @outlined_ir_func_0(
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; CHECK-NEXT: newFuncRoot:
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; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]]
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; CHECK: entry_to_outline:
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; CHECK-NEXT: br label [[BLOCK_1:%.*]]
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; CHECK: block_1:
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; CHECK-NEXT: [[A:%.*]] = phi i32 [ 0, [[BLOCK_2:%.*]] ], [ 1, [[ENTRY_TO_OUTLINE]] ]
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; CHECK-NEXT: br i1 false, label [[BLOCK_3_SPLIT:%.*]], label [[BLOCK_2]]
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; CHECK: block_2:
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; CHECK-NEXT: br i1 false, label [[BLOCK_3_SPLIT]], label [[BLOCK_1]]
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; CHECK: block_3.split:
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; CHECK-NEXT: [[B_CE:%.*]] = phi i32 [ 0, [[BLOCK_2]] ], [ 1, [[BLOCK_1]] ]
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; CHECK-NEXT: br label [[BLOCK_3_EXITSTUB:%.*]]
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; CHECK: block_3.exitStub:
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; CHECK-NEXT: switch i32 [[TMP1:%.*]], label [[FINAL_BLOCK_0:%.*]] [
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; CHECK-NEXT: i32 0, label [[OUTPUT_BLOCK_0_0:%.*]]
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; CHECK-NEXT: ]
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; CHECK: output_block_0_0:
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; CHECK-NEXT: store i32 [[B_CE]], ptr [[TMP0:%.*]], align 4
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; CHECK-NEXT: br label [[FINAL_BLOCK_0]]
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; CHECK: final_block_0:
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; CHECK-NEXT: ret void
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;
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