forked from OSchip/llvm-project
113 lines
4.2 KiB
LLVM
113 lines
4.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
|
|
; RUN: opt -S -verify -iroutliner -ir-outlining-no-cost < %s | FileCheck %s
|
|
|
|
; Show that we do not extract similar regions that would involve the splitting
|
|
; of phi nodes on exit.
|
|
|
|
define void @function1(i32* %a, i32* %b) {
|
|
entry:
|
|
%0 = alloca i32, align 4
|
|
%c = load i32, i32* %0, align 4
|
|
br label %test1
|
|
test1:
|
|
%e = load i32, i32* %0, align 4
|
|
br i1 true, label %first, label %next
|
|
test:
|
|
%d = load i32, i32* %0, align 4
|
|
br i1 true, label %first, label %next
|
|
first:
|
|
%1 = phi i32 [ %c, %test ], [ %e, %test1 ]
|
|
ret void
|
|
next:
|
|
ret void
|
|
}
|
|
|
|
define void @function2(i32* %a, i32* %b) {
|
|
entry:
|
|
%0 = alloca i32, align 4
|
|
%c = load i32, i32* %0, align 4
|
|
br label %test1
|
|
test1:
|
|
%e = load i32, i32* %0, align 4
|
|
br i1 true, label %first, label %next
|
|
test:
|
|
%d = load i32, i32* %0, align 4
|
|
br i1 true, label %first, label %next
|
|
first:
|
|
ret void
|
|
next:
|
|
%1 = phi i32 [ %c, %test ], [ %e, %test1 ]
|
|
ret void
|
|
}
|
|
; CHECK-LABEL: @function1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[DOTCE_LOC:%.*]] = alloca i32, align 4
|
|
; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4
|
|
; CHECK-NEXT: [[LT_CAST:%.*]] = bitcast i32* [[DOTCE_LOC]] to i8*
|
|
; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST]])
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i1 @outlined_ir_func_0(i32* [[TMP0]], i32* [[DOTCE_LOC]], i32 0)
|
|
; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, i32* [[DOTCE_LOC]], align 4
|
|
; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]])
|
|
; CHECK-NEXT: br i1 [[TMP1]], label [[FIRST:%.*]], label [[NEXT:%.*]]
|
|
; CHECK: first:
|
|
; CHECK-NEXT: [[TMP2:%.*]] = phi i32 [ [[DOTCE_RELOAD]], [[ENTRY:%.*]] ]
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: next:
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
;
|
|
; CHECK-LABEL: @function2(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[DOTCE_LOC:%.*]] = alloca i32, align 4
|
|
; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4
|
|
; CHECK-NEXT: [[LT_CAST:%.*]] = bitcast i32* [[DOTCE_LOC]] to i8*
|
|
; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST]])
|
|
; CHECK-NEXT: [[TMP1:%.*]] = call i1 @outlined_ir_func_0(i32* [[TMP0]], i32* [[DOTCE_LOC]], i32 1)
|
|
; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, i32* [[DOTCE_LOC]], align 4
|
|
; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]])
|
|
; CHECK-NEXT: br i1 [[TMP1]], label [[FIRST:%.*]], label [[NEXT:%.*]]
|
|
; CHECK: first:
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: next:
|
|
; CHECK-NEXT: [[TMP2:%.*]] = phi i32 [ [[DOTCE_RELOAD]], [[ENTRY:%.*]] ]
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
;
|
|
; CHECK-LABEL: define internal i1 @outlined_ir_func_0(
|
|
; CHECK-NEXT: newFuncRoot:
|
|
; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]]
|
|
; CHECK: entry_to_outline:
|
|
; CHECK-NEXT: [[C:%.*]] = load i32, i32* [[TMP0:%.*]], align 4
|
|
; CHECK-NEXT: br label [[TEST1:%.*]]
|
|
; CHECK: test1:
|
|
; CHECK-NEXT: [[E:%.*]] = load i32, i32* [[TMP0]], align 4
|
|
; CHECK-NEXT: br i1 true, label [[FIRST_SPLIT:%.*]], label [[PHI_BLOCK:%.*]]
|
|
; CHECK: test:
|
|
; CHECK-NEXT: [[D:%.*]] = load i32, i32* [[TMP0]], align 4
|
|
; CHECK-NEXT: br i1 true, label [[FIRST_SPLIT]], label [[PHI_BLOCK]]
|
|
; CHECK: first.split:
|
|
; CHECK-NEXT: [[DOTCE:%.*]] = phi i32 [ [[C]], [[TEST:%.*]] ], [ [[E]], [[TEST1]] ]
|
|
; CHECK-NEXT: br label [[FIRST_EXITSTUB:%.*]]
|
|
; CHECK: first.exitStub:
|
|
; CHECK-NEXT: switch i32 [[TMP2:%.*]], label [[FINAL_BLOCK_1:%.*]] [
|
|
; CHECK-NEXT: i32 0, label [[OUTPUT_BLOCK_0_1:%.*]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: next.exitStub:
|
|
; CHECK-NEXT: switch i32 [[TMP2]], label [[FINAL_BLOCK_0:%.*]] [
|
|
; CHECK-NEXT: i32 0, label [[OUTPUT_BLOCK_1_0:%.*]]
|
|
; CHECK-NEXT: ]
|
|
; CHECK: output_block_0_1:
|
|
; CHECK-NEXT: store i32 [[DOTCE]], i32* [[TMP1:%.*]], align 4
|
|
; CHECK-NEXT: br label [[FINAL_BLOCK_1]]
|
|
; CHECK: output_block_1_0:
|
|
; CHECK-NEXT: store i32 [[TMP3:%.*]], i32* [[TMP1]], align 4
|
|
; CHECK-NEXT: br label [[FINAL_BLOCK_0]]
|
|
; CHECK: phi_block:
|
|
; CHECK-NEXT: [[TMP3]] = phi i32 [ [[C]], [[TEST]] ], [ [[E]], [[TEST1]] ]
|
|
; CHECK-NEXT: br label [[NEXT_EXITSTUB:%.*]]
|
|
; CHECK: final_block_0:
|
|
; CHECK-NEXT: ret i1 false
|
|
; CHECK: final_block_1:
|
|
; CHECK-NEXT: ret i1 true
|
|
;
|