Simplify RUN line. Remove control flow.

Signed-off-by: John Lu <[email protected]>

Author: LU-JOHN

llvm/test/CodeGen/AMDGPU/invalid-kill.mir

@@ -1,4 +1,4 @@
-# RUN: llc -mtriple=amdgcn -verify-machineinstrs=1 -start-before=postrapseudos -stop-after=postrapseudos -O0 -o - %s | FileCheck -check-prefix=GCN %s
+# RUN: llc -mtriple=amdgcn -verify-machineinstrs --run-pass=postrapseudos -o - %s | FileCheck -check-prefix=GCN %s
 
 # This testcase shows the necessity of removing the killed flag from the $sgpr source when
 # creating a V_WRITELANE_B32.  The SI_SPILL_S32_TO_VGPR will be converted in postrapseudos from:
@@ -21,37 +21,9 @@ machineFunctionInfo:
     - '$vgpr63'
 body:             |
   bb.0:
-    successors: %bb.1(0x80000000)
     liveins: $vgpr0
-  
-    S_BRANCH %bb.1
-  
-  bb.1:
-    successors: %bb.2(0x40000000), %bb.3(0x40000000)
-  
     $sgpr0 = SI_RESTORE_S32_FROM_VGPR $vgpr63, 2, implicit-def $sgpr0_sgpr1
     $vgpr63 = SI_SPILL_S32_TO_VGPR killed $sgpr0, 6, $vgpr63, implicit-def $sgpr0_sgpr1
     $exec = S_MOV_B64_term killed renamable $sgpr0_sgpr1
-    S_CBRANCH_EXECZ %bb.3, implicit $exec
-    S_BRANCH %bb.2
-  
-  bb.2:
-    successors: %bb.3(0x80000000)
-  
-    S_BRANCH %bb.3
-  
-  bb.3:
-    successors: %bb.4(0x40000000), %bb.1(0x40000000)
-  
-    $exec = S_ANDN2_B64_term $exec, killed undef renamable $sgpr0_sgpr1, implicit-def dead $scc
-    S_CBRANCH_EXECNZ %bb.1, implicit $exec
-    S_BRANCH %bb.4
-  
-  bb.4:
-    successors: %bb.5(0x80000000)
-  
-    $exec = S_OR_B64_term $exec, killed undef renamable $sgpr0_sgpr1, implicit-def dead $scc
-  
-  bb.5:
     S_ENDPGM 0
 ...

llvm/test/CodeGen/AMDGPU/spilled-kill.mir

@@ -1,9 +1,9 @@
-# RUN: llc -mtriple=amdgcn -mcpu=tahiti -verify-machineinstrs -start-before=prologepilog -stop-after=postrapseudos -o - %s | FileCheck -check-prefix=GCN %s
+# RUN: llc -mtriple=amdgcn -verify-machineinstrs --run-pass=postrapseudos -o - %s | FileCheck -check-prefix=GCN %s
 
-# This testcase shows the necessity of adding an undef flag to the $sgpr source when
+# This test shows the necessity of adding an undef flag to the $sgpr source when
 # creating a V_WRITELANE_B32.
 #
-# The prologepilog pass will create a:
+# The prologepilog creates:
 #
 #   $exec = S_MOV_B64 killed $sgpr4_sgpr5
 #
@@ -29,30 +29,10 @@ machineFunctionInfo:
     - '$vgpr62'
 body:             |
   bb.0:
-    successors: %bb.3(0x40000000), %bb.1(0x40000000)
-  
+    $sgpr4_sgpr5 = S_XOR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
+    $exec = S_MOV_B64 killed $sgpr4_sgpr5
     renamable $sgpr4 = IMPLICIT_DEF
     $vgpr62 = SI_SPILL_S32_TO_VGPR $sgpr5, 1, killed $vgpr62, implicit $sgpr4_sgpr5
-    S_CBRANCH_EXECZ %bb.1, implicit $exec
-    S_BRANCH %bb.3
-  
-  bb.1:
-    successors: %bb.2(0x40000000), %bb.4(0x40000000)
-  
-    S_CBRANCH_EXECZ %bb.4, implicit $exec
-    S_BRANCH %bb.2
-  
-  bb.2:
-    successors: %bb.4(0x80000000)
-  
-    S_BRANCH %bb.4
-  
-  bb.3:
-    successors: %bb.1(0x80000000)
-  
-    S_BRANCH %bb.1
-  
-  bb.4:
-  
     SI_RETURN
 ...
+