AMDGPU: Unify divergent function exits.

StructurizeCFG can't handle cases with multiple
returns creating regions with multiple exits.
Create a copy of UnifyFunctionExitNodes that only
unifies exit nodes that skips exit nodes
with uniform branch sources.

llvm-svn: 298729

1 files changed, 6 insertions, 6 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIInstrFormats.td b/llvm/lib/Target/AMDGPU/SIInstrFormats.td
index 1db22120f21..b83a1fe187e 100644
--- a/llvm/lib/Target/AMDGPU/SIInstrFormats.td
+++ b/llvm/lib/Target/AMDGPU/SIInstrFormats.td
@@ -138,19 +138,19 @@ class InstSI <dag outs, dag ins, string asm = "",
   let AsmVariantName = AMDGPUAsmVariants.Default;
 }
 
-class PseudoInstSI<dag outs, dag ins, list<dag> pattern = []>
-  : InstSI<outs, ins, "", pattern> {
+class PseudoInstSI<dag outs, dag ins, list<dag> pattern = [], string asm = "">
+  : InstSI<outs, ins, asm, pattern> {
   let isPseudo = 1;
   let isCodeGenOnly = 1;
 }
 
-class SPseudoInstSI<dag outs, dag ins, list<dag> pattern = []>
-  : PseudoInstSI<outs, ins, pattern> {
+class SPseudoInstSI<dag outs, dag ins, list<dag> pattern = [], string asm = "">
+  : PseudoInstSI<outs, ins, pattern, asm> {
   let SALU = 1;
 }
 
-class VPseudoInstSI<dag outs, dag ins, list<dag> pattern = []>
-  : PseudoInstSI<outs, ins, pattern> {
+class VPseudoInstSI<dag outs, dag ins, list<dag> pattern = [], string asm = "">
+  : PseudoInstSI<outs, ins, pattern, asm> {
   let VALU = 1;
   let Uses = [EXEC];
 }