[llvm] r190091 - R600: Fix i64 to i32 trunc on SI

Matt Arsenault Matthew.Arsenault at amd.com
Thu Sep 5 12:41:10 PDT 2013


Author: arsenm
Date: Thu Sep  5 14:41:10 2013
New Revision: 190091

URL: http://llvm.org/viewvc/llvm-project?rev=190091&view=rev
Log:
R600: Fix i64 to i32 trunc on SI

Added:
    llvm/trunk/test/CodeGen/R600/trunc.ll
Modified:
    llvm/trunk/lib/Target/R600/SIISelLowering.cpp

Modified: llvm/trunk/lib/Target/R600/SIISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/R600/SIISelLowering.cpp?rev=190091&r1=190090&r2=190091&view=diff
==============================================================================
--- llvm/trunk/lib/Target/R600/SIISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/R600/SIISelLowering.cpp Thu Sep  5 14:41:10 2013
@@ -90,6 +90,7 @@ SITargetLowering::SITargetLowering(Targe
 
   setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand);
   setTruncStoreAction(MVT::f64, MVT::f32, Expand);
+  setTruncStoreAction(MVT::i64, MVT::i32, Expand);
 
   setOperationAction(ISD::GlobalAddress, MVT::i32, Custom);
 

Added: llvm/trunk/test/CodeGen/R600/trunc.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/R600/trunc.ll?rev=190091&view=auto
==============================================================================
--- llvm/trunk/test/CodeGen/R600/trunc.ll (added)
+++ llvm/trunk/test/CodeGen/R600/trunc.ll Thu Sep  5 14:41:10 2013
@@ -0,0 +1,19 @@
+; RUN: llc -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI %s
+; RUN: llc -march=r600 -mcpu=cypress < %s | FileCheck -check-prefix=EG %s
+
+
+define void @trunc_i64_to_i32_store(i32 addrspace(1)* %out, i64 %in) {
+; SI-LABEL: @trunc_i64_to_i32_store
+; SI: S_LOAD_DWORD SGPR0, SGPR0_SGPR1, 11
+; SI: V_MOV_B32_e32 VGPR0, SGPR0
+; SI: BUFFER_STORE_DWORD VGPR0
+
+; EG-LABEL: @trunc_i64_to_i32_store
+; EG: MEM_RAT_CACHELESS STORE_RAW T0.X, T1.X, 1
+; EG: LSHR
+; EG-NEXT: 2(
+
+  %result = trunc i64 %in to i32 store i32 %result, i32 addrspace(1)* %out, align 4
+  ret void
+}
+





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