; 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
; Show that we do not extract similar regions that would involve the splitting
; of phi nodes on exit.
define void @function1(ptr %a, ptr %b) {
entry:
%0 = alloca i32, align 4
%c = load i32, ptr %0, align 4
br label %test1
test1:
%e = load i32, ptr %0, align 4
br i1 true, label %first, label %next
test:
%d = load i32, ptr %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(ptr %a, ptr %b) {
entry:
%0 = alloca i32, align 4
%c = load i32, ptr %0, align 4
br label %test1
test1:
%e = load i32, ptr %0, align 4
br i1 true, label %first, label %next
test:
%d = load i32, ptr %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: call void @llvm.lifetime.start.p0(i64 -1, ptr [[DOTCE_LOC]])
; CHECK-NEXT: [[TMP1:%.*]] = call i1 @outlined_ir_func_0(ptr [[TMP0]], ptr [[DOTCE_LOC]], i32 0)
; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, ptr [[DOTCE_LOC]], align 4
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[DOTCE_LOC]])
; 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: call void @llvm.lifetime.start.p0(i64 -1, ptr [[DOTCE_LOC]])
; CHECK-NEXT: [[TMP1:%.*]] = call i1 @outlined_ir_func_0(ptr [[TMP0]], ptr [[DOTCE_LOC]], i32 1)
; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, ptr [[DOTCE_LOC]], align 4
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[DOTCE_LOC]])
; 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, ptr [[TMP0:%.*]], align 4
; CHECK-NEXT: br label [[TEST1:%.*]]
; CHECK: test1:
; CHECK-NEXT: [[E:%.*]] = load i32, ptr [[TMP0]], align 4
; CHECK-NEXT: br i1 true, label [[FIRST_SPLIT:%.*]], label [[PHI_BLOCK:%.*]]
; CHECK: test:
; CHECK-NEXT: [[D:%.*]] = load i32, ptr [[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]], ptr [[TMP1:%.*]], align 4
; CHECK-NEXT: br label [[FINAL_BLOCK_1]]
; CHECK: output_block_1_0:
; CHECK-NEXT: store i32 [[TMP3:%.*]], ptr [[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
;
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