forked from OSchip/llvm-project
106 lines
3.8 KiB
LLVM
106 lines
3.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -verify -iroutliner -ir-outlining-no-cost < %s | FileCheck %s
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; This test ensures that an extra output is not added when there is a bitcast
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; that is relocated to outside of the extraction due to a starting lifetime
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; instruction outside of the extracted region.
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; Additionally, we check that the newly added bitcast instruction is excluded in
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; further extractions.
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declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
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define void @outline_bitcast_base() {
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; CHECK-LABEL: @outline_bitcast_base(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[D:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @[[FUNCTION_0:.*]](i32* [[A]], i32* [[B]], i32* [[C]], i32* [[D]])
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; CHECK-NEXT: ret void
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;
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entry:
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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%c = alloca i32, align 4
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%d = alloca i32, align 4
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store i32 2, i32* %a, align 4
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store i32 3, i32* %b, align 4
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store i32 4, i32* %c, align 4
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%X = bitcast i32* %d to i8*
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%al = load i32, i32* %a
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%bl = load i32, i32* %b
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%cl = load i32, i32* %c
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ret void
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}
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define void @outline_bitcast_removed() {
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; CHECK-LABEL: @outline_bitcast_removed(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[D:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @[[FUNCTION_0:.*]](i32* [[A]], i32* [[B]], i32* [[C]], i32* [[D]])
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; CHECK-NEXT: [[LT_CAST1:%.*]] = bitcast i32* [[D]] to i8*
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; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST1]])
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; CHECK-NEXT: [[AM:%.*]] = load i32, i32* [[B]], align 4
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; CHECK-NEXT: [[BM:%.*]] = load i32, i32* [[A]], align 4
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; CHECK-NEXT: [[CM:%.*]] = load i32, i32* [[C]], align 4
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; CHECK-NEXT: [[AS:%.*]] = add i32 [[AM]], [[BM]]
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; CHECK-NEXT: [[BS:%.*]] = add i32 [[BM]], [[AM]]
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; CHECK-NEXT: [[CS:%.*]] = add i32 [[BM]], [[CM]]
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; CHECK-NEXT: [[LT_CAST:%.*]] = bitcast i32* [[D]] to i8*
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; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]])
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; CHECK-NEXT: ret void
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;
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entry:
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%a = alloca i32, align 4
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%b = alloca i32, align 4
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%c = alloca i32, align 4
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%d = alloca i32, align 4
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store i32 2, i32* %a, align 4
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store i32 3, i32* %b, align 4
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store i32 4, i32* %c, align 4
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%X = bitcast i32* %d to i8*
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%al = load i32, i32* %a
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%bl = load i32, i32* %b
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%cl = load i32, i32* %c
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call void @llvm.lifetime.start.p0i8(i64 -1, i8* %X)
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%am = load i32, i32* %b
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%bm = load i32, i32* %a
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%cm = load i32, i32* %c
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%as = add i32 %am, %bm
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%bs = add i32 %bm, %am
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%cs = add i32 %bm, %cm
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call void @llvm.lifetime.end.p0i8(i64 -1, i8* %X)
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ret void
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}
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define void @outline_bitcast_base2(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @outline_bitcast_base2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[AL:%.*]] = add i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[BL:%.*]] = add i32 [[B]], [[A]]
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; CHECK-NEXT: [[CL:%.*]] = add i32 [[B]], [[C:%.*]]
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; CHECK-NEXT: ret void
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;
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entry:
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%al = add i32 %a, %b
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%bl = add i32 %b, %a
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%cl = add i32 %b, %c
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ret void
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}
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; CHECK: define internal void @[[FUNCTION_0]](i32* [[ARG0:%.*]], i32* [[ARG1:%.*]], i32* [[ARG2:%.*]], i32* [[ARG3:%.*]])
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; CHECK: entry_to_outline:
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; CHECK-NEXT: store i32 2, i32* [[ARG0]], align 4
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; CHECK-NEXT: store i32 3, i32* [[ARG1]], align 4
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; CHECK-NEXT: store i32 4, i32* [[ARG2]], align 4
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; CHECK-NEXT: [[X:%.*]] = bitcast i32* [[ARG3]] to i8*
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; CHECK-NEXT: [[AL:%.*]] = load i32, i32* [[ARG0]], align 4
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; CHECK-NEXT: [[BL:%.*]] = load i32, i32* [[ARG1]], align 4
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; CHECK-NEXT: [[CL:%.*]] = load i32, i32* [[ARG2]], align 4
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