llvm-for-llvmta/test/Instrumentation/DataFlowSanitizer/phi.ll

32 lines
1.4 KiB
LLVM

; RUN: opt < %s -dfsan -S | FileCheck %s --check-prefix=LEGACY
; RUN: opt < %s -dfsan -dfsan-fast-16-labels=true -S | FileCheck %s --check-prefix=FAST16
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) {
; LEGACY: [[AL:%.*]] = load i16, i16* bitcast ([100 x i64]* @__dfsan_arg_tls to i16*), align [[ALIGN:2]]
; LEGACY: [[PL:%.*]] = phi i16 [ [[AL]], %T ], [ [[AL]], %F ]
; LEGACY: store i16 [[PL]], i16* bitcast ([100 x i64]* @__dfsan_retval_tls to i16*), align [[ALIGN]]
; FAST16: [[AL:%.*]] = load { i16, i16 }, { i16, i16 }* bitcast ([100 x i64]* @__dfsan_arg_tls to { i16, i16 }*), align [[ALIGN:2]]
; FAST16: [[AL0:%.*]] = insertvalue { i16, i16 } [[AL]], i16 0, 0
; FAST16: [[AL1:%.*]] = insertvalue { i16, i16 } [[AL]], i16 0, 1
; FAST16: [[PL:%.*]] = phi { i16, i16 } [ [[AL0]], %T ], [ [[AL1]], %F ]
; FAST16: store { i16, i16 } [[PL]], { i16, i16 }* bitcast ([100 x i64]* @__dfsan_retval_tls to { i16, i16 }*), align [[ALIGN]]
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
}