From: Tom Stellard <tstellar@redhat.com>
Date: Wed, 7 Jun 2017 13:54:51 +0000 (+0000)
Subject: AMDGPU/GlobalISel: Mark 32-bit G_SELECT as legal
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=55d2b21ff7344a6a2214b565ecf4ff6c4edfb682;p=llvm

AMDGPU/GlobalISel: Mark 32-bit G_SELECT as legal

Reviewers: arsenm

Reviewed By: arsenm

Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, rovka, kristof.beyls, igorb, dstuttard, tpr, t-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D33949

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@304910 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp b/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
index 4fdc270201e..b889788c342 100644
--- a/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
+++ b/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -56,6 +56,9 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo() {
   setAction({G_LOAD, 1, P1}, Legal);
   setAction({G_LOAD, 1, P2}, Legal);
 
+  setAction({G_SELECT, S32}, Legal);
+  setAction({G_SELECT, 1, S1}, Legal);
+
   setAction({G_STORE, S32}, Legal);
   setAction({G_STORE, 1, P1}, Legal);
 
diff --git a/test/CodeGen/AMDGPU/GlobalISel/legalize-select.mir b/test/CodeGen/AMDGPU/GlobalISel/legalize-select.mir
new file mode 100644
index 00000000000..d11130936bd
--- /dev/null
+++ b/test/CodeGen/AMDGPU/GlobalISel/legalize-select.mir
@@ -0,0 +1,28 @@
+# RUN: llc -O0 -march=amdgcn -mcpu=fiji  -run-pass=legalizer -global-isel %s -o - | FileCheck %s
+
+--- |
+  define void @test_select() { ret void }
+...
+
+---
+name:            test_select
+registers:
+  - { id: 0, class: _ }
+  - { id: 1, class: _ }
+  - { id: 2, class: _ }
+  - { id: 3, class: _ }
+  - { id: 4, class: _ }
+  - { id: 5, class: _ }
+body: |
+  bb.0:
+    liveins: %vgpr0
+    %0(s32) = G_CONSTANT i32 0
+    %1(s32) = COPY %vgpr0
+
+    %2(s1) = G_ICMP intpred(ne), %0, %1
+    %3(s32) = G_CONSTANT i32 1
+    %4(s32) = G_CONSTANT i32 2
+    ; CHECK: %5(s32) = G_SELECT %2(s1), %3, %4
+    %5(s32) = G_SELECT %2, %3, %4
+
+...