[ARM] GlobalISel: Support i1 add and ABI extensions

Add support for:
* i1 add
* i1 function arguments, if passed through registers
* i1 returns, with ABI signext/zeroext

Differential Revision: https://reviews.llvm.org/D27706

llvm-svn: 293035

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Target/ARM/ARMLegalizerInfo.cpp b/llvm/lib/Target/ARM/ARMLegalizerInfo.cpp
index 0dfddf1bfc1..7157af1ec16 100644
--- a/llvm/lib/Target/ARM/ARMLegalizerInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMLegalizerInfo.cpp
@@ -28,6 +28,7 @@ ARMLegalizerInfo::ARMLegalizerInfo() {
 
   const LLT p0 = LLT::pointer(0, 32);
 
+  const LLT s1 = LLT::scalar(1);
   const LLT s8 = LLT::scalar(8);
   const LLT s16 = LLT::scalar(16);
   const LLT s32 = LLT::scalar(32);
@@ -37,12 +38,12 @@ ARMLegalizerInfo::ARMLegalizerInfo() {
   setAction({G_LOAD, s32}, Legal);
   setAction({G_LOAD, 1, p0}, Legal);
 
-  for (auto Ty : {s8, s16, s32})
+  for (auto Ty : {s1, s8, s16, s32})
     setAction({G_ADD, Ty}, Legal);
 
   for (auto Op : {G_SEXT, G_ZEXT}) {
     setAction({Op, s32}, Legal);
-    for (auto Ty : {s8, s16})
+    for (auto Ty : {s1, s8, s16})
       setAction({Op, 1, Ty}, Legal);
   }