[PATCH] D37701: AMDGPU: Allow coldcc calls

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, kzhuravl.

https://reviews.llvm.org/D37701

Files:
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  test/CodeGen/AMDGPU/calling-conventions.ll


Index: test/CodeGen/AMDGPU/calling-conventions.ll
===================================================================
--- test/CodeGen/AMDGPU/calling-conventions.ll
+++ test/CodeGen/AMDGPU/calling-conventions.ll
@@ -43,3 +43,17 @@
   %add = fadd half %arg0, 1.0
   ret half %add
 }
+
+; GCN-LABEL: {{^}}fastcc:
+; GCN: v_add_f32_e32 v0, 4.0, v0
+define fastcc float @fastcc(float %arg0) {
+  %add = fadd float %arg0, 4.0
+  ret float %add
+}
+
+; GCN-LABEL: {{^}}coldcc:
+; GCN: v_add_f32_e32 v0, 4.0, v0
+define coldcc float @coldcc(float %arg0) {
+ %add = fadd float %arg0, 4.0
+ ret float %add
+}
Index: lib/Target/AMDGPU/AMDGPUISelLowering.cpp
===================================================================
--- lib/Target/AMDGPU/AMDGPUISelLowering.cpp
+++ lib/Target/AMDGPU/AMDGPUISelLowering.cpp
@@ -871,6 +871,7 @@
     return RetCC_SI_Shader;
   case CallingConv::C:
   case CallingConv::Fast:
+  case CallingConv::Cold:
     return RetCC_AMDGPU_Func;
   default:
     report_fatal_error("Unsupported calling convention.");


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