128 lines
4.5 KiB
LLVM
128 lines
4.5 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
|
||
|
|
; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
|
||
|
|
|
||
|
|
; This test ensures that an extra output is not added when there is a bitcast
|
||
|
|
; that is relocated to outside of the extraction due to a starting lifetime
|
||
|
|
; instruction outside of the extracted region.
|
||
|
|
|
||
|
|
; Additionally, we check that the newly added bitcast instruction is excluded in
|
||
|
|
; further extractions.
|
||
|
|
|
||
|
|
declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
|
||
|
|
declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
|
||
|
|
|
||
|
|
define void @outline_bitcast_base() {
|
||
|
|
entry:
|
||
|
|
%a = alloca i32, align 4
|
||
|
|
%b = alloca i32, align 4
|
||
|
|
%c = alloca i32, align 4
|
||
|
|
%d = alloca i32, align 4
|
||
|
|
store i32 2, ptr %a, align 4
|
||
|
|
store i32 3, ptr %b, align 4
|
||
|
|
store i32 4, ptr %c, align 4
|
||
|
|
%al = load i32, ptr %a
|
||
|
|
%bl = load i32, ptr %b
|
||
|
|
%cl = load i32, ptr %c
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @outline_bitcast_removed() {
|
||
|
|
entry:
|
||
|
|
%a = alloca i32, align 4
|
||
|
|
%b = alloca i32, align 4
|
||
|
|
%c = alloca i32, align 4
|
||
|
|
%d = alloca i32, align 4
|
||
|
|
store i32 2, ptr %a, align 4
|
||
|
|
store i32 3, ptr %b, align 4
|
||
|
|
store i32 4, ptr %c, align 4
|
||
|
|
%al = load i32, ptr %a
|
||
|
|
%bl = load i32, ptr %b
|
||
|
|
%cl = load i32, ptr %c
|
||
|
|
call void @llvm.lifetime.start.p0(i64 -1, ptr %d)
|
||
|
|
%am = load i32, ptr %b
|
||
|
|
%bm = load i32, ptr %a
|
||
|
|
%cm = load i32, ptr %c
|
||
|
|
call void @llvm.lifetime.end.p0(i64 -1, ptr %d)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; The first bitcast is moved down to lifetime start, and, since the original
|
||
|
|
; endpoint does not match the new endpoint, we cannot extract and outline the
|
||
|
|
; second bitcast and set of adds. Outlining only occurs in this case due to
|
||
|
|
; the lack of a cost model, as denoted by the debug command line argument.
|
||
|
|
|
||
|
|
define void @outline_bitcast_base2(i32 %a, i32 %b, i32 %c) {
|
||
|
|
entry:
|
||
|
|
%d = alloca i32, align 4
|
||
|
|
%al = add i32 %a, %b
|
||
|
|
%bl = add i32 %b, %a
|
||
|
|
%cl = add i32 %b, %c
|
||
|
|
%buffer = mul i32 %a, %b
|
||
|
|
%am = add i32 %a, %b
|
||
|
|
%bm = add i32 %b, %a
|
||
|
|
%cm = add i32 %b, %c
|
||
|
|
call void @llvm.lifetime.start.p0(i64 -1, ptr %d)
|
||
|
|
call void @llvm.lifetime.end.p0(i64 -1, ptr %d)
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: @outline_bitcast_base(
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: [[D:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: call void @outlined_ir_func_0(ptr [[A]], ptr [[B]], ptr [[C]])
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: @outline_bitcast_removed(
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: call void @outlined_ir_func_0(ptr [[A]], ptr [[B]], ptr [[C]])
|
||
|
|
; CHECK-NEXT: [[AM:%.*]] = load i32, ptr [[B]], align 4
|
||
|
|
; CHECK-NEXT: [[BM:%.*]] = load i32, ptr [[A]], align 4
|
||
|
|
; CHECK-NEXT: [[CM:%.*]] = load i32, ptr [[C]], align 4
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: @outline_bitcast_base2(
|
||
|
|
; CHECK-NEXT: entry:
|
||
|
|
; CHECK-NEXT: call void @outlined_ir_func_1(i32 [[A:%.*]], i32 [[B:%.*]], i32 [[C:%.*]])
|
||
|
|
; CHECK-NEXT: [[BUFFER:%.*]] = mul i32 [[A]], [[B]]
|
||
|
|
; CHECK-NEXT: call void @outlined_ir_func_1(i32 [[A]], i32 [[B]], i32 [[C]])
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: @outlined_ir_func_0(
|
||
|
|
; CHECK-NEXT: newFuncRoot:
|
||
|
|
; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]]
|
||
|
|
; CHECK: entry_to_outline:
|
||
|
|
; CHECK-NEXT: store i32 2, ptr [[TMP0:%.*]], align 4
|
||
|
|
; CHECK-NEXT: store i32 3, ptr [[TMP1:%.*]], align 4
|
||
|
|
; CHECK-NEXT: store i32 4, ptr [[TMP2:%.*]], align 4
|
||
|
|
; CHECK-NEXT: [[AL:%.*]] = load i32, ptr [[TMP0]], align 4
|
||
|
|
; CHECK-NEXT: [[BL:%.*]] = load i32, ptr [[TMP1]], align 4
|
||
|
|
; CHECK-NEXT: [[CL:%.*]] = load i32, ptr [[TMP2]], align 4
|
||
|
|
; CHECK-NEXT: br label [[ENTRY_AFTER_OUTLINE_EXITSTUB:%.*]]
|
||
|
|
; CHECK: entry_after_outline.exitStub:
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|
||
|
|
;
|
||
|
|
; CHECK-LABEL: @outlined_ir_func_1(
|
||
|
|
; CHECK-NEXT: newFuncRoot:
|
||
|
|
; CHECK-NEXT: [[D:%.*]] = alloca i32, align 4
|
||
|
|
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[D]])
|
||
|
|
; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]]
|
||
|
|
; CHECK: entry_to_outline:
|
||
|
|
; CHECK-NEXT: [[AL:%.*]] = add i32 [[TMP0:%.*]], [[TMP1:%.*]]
|
||
|
|
; CHECK-NEXT: [[BL:%.*]] = add i32 [[TMP1]], [[TMP0]]
|
||
|
|
; CHECK-NEXT: [[CL:%.*]] = add i32 [[TMP1]], [[TMP2:%.*]]
|
||
|
|
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[D]])
|
||
|
|
; CHECK-NEXT: br label [[ENTRY_AFTER_OUTLINE_EXITSTUB:%.*]]
|
||
|
|
; CHECK: entry_after_outline.exitStub:
|
||
|
|
; CHECK-NEXT: ret void
|
||
|
|
;
|