llvm/test/Instrumentation/DataFlowSanitizer/phi.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt < %s -passes=dfsan -dfsan-add-global-name-suffix=0 -S | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

define {i32, i32} @test({i32, i32} %a, i1 %c) {
; CHECK-LABEL: define { i32, i32 } @test(
; CHECK-SAME: { i32, i32 } [[A:%.*]], i1 [[C:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[TMP0:%.*]] = load { i8, i8 }, ptr @__dfsan_arg_tls, align 2
; CHECK-NEXT:    br i1 [[C]], label %[[T:.*]], label %[[F:.*]]
; CHECK:       [[T]]:
; CHECK-NEXT:    [[TMP1:%.*]] = insertvalue { i8, i8 } [[TMP0]], i8 0, 0
; CHECK-NEXT:    [[AT:%.*]] = insertvalue { i32, i32 } [[A]], i32 1, 0
; CHECK-NEXT:    br label %[[DONE:.*]]
; CHECK:       [[F]]:
; CHECK-NEXT:    [[TMP2:%.*]] = insertvalue { i8, i8 } [[TMP0]], i8 0, 1
; CHECK-NEXT:    [[AF:%.*]] = insertvalue { i32, i32 } [[A]], i32 1, 1
; CHECK-NEXT:    br label %[[DONE]]
; CHECK:       [[DONE]]:
; CHECK-NEXT:    [[TMP3:%.*]] = phi { i8, i8 } [ [[TMP1]], %[[T]] ], [ [[TMP2]], %[[F]] ]
; CHECK-NEXT:    [[B:%.*]] = phi { i32, i32 } [ [[AT]], %[[T]] ], [ [[AF]], %[[F]] ]
; CHECK-NEXT:    store { i8, i8 } [[TMP3]], ptr @__dfsan_retval_tls, align 2
; CHECK-NEXT:    ret { i32, i32 } [[B]]
;

entry:
  br i1 %c, label %T, label %F

T:
  %at = insertvalue {i32, i32} %a, i32 1, 0
  br label %done

F:
  %af = insertvalue {i32, i32} %a, i32 1, 1
  br label %done

done:
  %b = phi {i32, i32} [%at, %T], [%af, %F]
  ret {i32, i32} %b
}