diff options
author | Sanjay Patel <spatel@rotateright.com> | 2016-07-12 16:17:30 +0000 |
---|---|---|
committer | Sanjay Patel <spatel@rotateright.com> | 2016-07-12 16:17:30 +0000 |
commit | 93dffe629a4bc1361a1319ee8725c7ac92327de7 (patch) | |
tree | 1b49320c752f5b269e1a4e86cd7dde04a8f923b7 | |
parent | 6d1f227e6b9db0df6412acf330cc74d56add6744 (diff) | |
download | bcm5719-llvm-93dffe629a4bc1361a1319ee8725c7ac92327de7.tar.gz bcm5719-llvm-93dffe629a4bc1361a1319ee8725c7ac92327de7.zip |
auto-generate checks
llvm-svn: 275187
-rw-r--r-- | llvm/test/Transforms/InstCombine/demorgan-zext.ll | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/llvm/test/Transforms/InstCombine/demorgan-zext.ll b/llvm/test/Transforms/InstCombine/demorgan-zext.ll index da41fac3e35..f57bd03a0fc 100644 --- a/llvm/test/Transforms/InstCombine/demorgan-zext.ll +++ b/llvm/test/Transforms/InstCombine/demorgan-zext.ll @@ -1,34 +1,35 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -instcombine -S | FileCheck %s ; PR22723: Recognize De Morgan's Laws when obfuscated by zexts. define i32 @demorgan_or(i1 %X, i1 %Y) { +; CHECK-LABEL: @demorgan_or( +; CHECK-NEXT: [[OR_DEMORGAN:%.*]] = and i1 %X, %Y +; CHECK-NEXT: [[TMP1:%.*]] = zext i1 [[OR_DEMORGAN]] to i32 +; CHECK-NEXT: [[OR:%.*]] = xor i32 [[TMP1]], 1 +; CHECK-NEXT: ret i32 [[OR]] +; %zextX = zext i1 %X to i32 %zextY = zext i1 %Y to i32 %notX = xor i32 %zextX, 1 %notY = xor i32 %zextY, 1 %or = or i32 %notX, %notY ret i32 %or - -; CHECK-LABEL: demorgan_or( -; CHECK-NEXT: %[[AND:.*]] = and i1 %X, %Y -; CHECK-NEXT: %[[ZEXT:.*]] = zext i1 %[[AND]] to i32 -; CHECK-NEXT: %[[XOR:.*]] = xor i32 %[[ZEXT]], 1 -; CHECK-NEXT: ret i32 %[[XOR]] } define i32 @demorgan_and(i1 %X, i1 %Y) { +; CHECK-LABEL: @demorgan_and( +; CHECK-NEXT: [[AND_DEMORGAN:%.*]] = or i1 %X, %Y +; CHECK-NEXT: [[TMP1:%.*]] = zext i1 [[AND_DEMORGAN]] to i32 +; CHECK-NEXT: [[AND:%.*]] = xor i32 [[TMP1]], 1 +; CHECK-NEXT: ret i32 [[AND]] +; %zextX = zext i1 %X to i32 %zextY = zext i1 %Y to i32 %notX = xor i32 %zextX, 1 %notY = xor i32 %zextY, 1 %and = and i32 %notX, %notY ret i32 %and - -; CHECK-LABEL: demorgan_and( -; CHECK-NEXT: %[[OR:.*]] = or i1 %X, %Y -; CHECK-NEXT: %[[ZEXT:.*]] = zext i1 %[[OR]] to i32 -; CHECK-NEXT: %[[XOR:.*]] = xor i32 %[[ZEXT]], 1 -; CHECK-NEXT: ret i32 %[[XOR]] } |