c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
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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