[llvm] a92cf7c - AMDGPU: Mark SCC def as dead when expanding frame indexes

Matt Arsenault via llvm-commits llvm-commits at lists.llvm.org
Wed Dec 8 15:57:34 PST 2021


Author: Matt Arsenault
Date: 2021-12-08T18:40:39-05:00
New Revision: a92cf7cea5383c7c2920b803cf7aa2167dec9fa6

URL: https://github.com/llvm/llvm-project/commit/a92cf7cea5383c7c2920b803cf7aa2167dec9fa6
DIFF: https://github.com/llvm/llvm-project/commit/a92cf7cea5383c7c2920b803cf7aa2167dec9fa6.diff

LOG: AMDGPU: Mark SCC def as dead when expanding frame indexes

This improves liveness queries in a future change.

Added: 
    

Modified: 
    llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
    llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-carry-out.mir
    llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-gfx9.mir
    llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr.mir
    llvm/test/CodeGen/AMDGPU/pei-scavenge-vgpr-spill.mir
    llvm/test/CodeGen/AMDGPU/sgpr-spill.mir

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
index a1d9a23a50847..b6b495de9b4f0 100644
--- a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
@@ -1240,9 +1240,10 @@ void SIRegisterInfo::buildSpillLoadStore(
     if (ScratchOffsetReg == AMDGPU::NoRegister) {
       BuildMI(MBB, MI, DL, TII->get(AMDGPU::S_MOV_B32), SOffset).addImm(Offset);
     } else {
-      BuildMI(MBB, MI, DL, TII->get(AMDGPU::S_ADD_I32), SOffset)
+      auto Add = BuildMI(MBB, MI, DL, TII->get(AMDGPU::S_ADD_I32), SOffset)
           .addReg(ScratchOffsetReg)
           .addImm(Offset);
+      Add->getOperand(3).setIsDead(); // Mark SCC as dead.
     }
 
     Offset = 0;

diff  --git a/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-carry-out.mir b/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-carry-out.mir
index eef72204b138b..e1f6a2b75e103 100644
--- a/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-carry-out.mir
+++ b/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-carry-out.mir
@@ -30,7 +30,7 @@ body:             |
     ; CHECK: liveins: $vgpr1, $vgpr2
     ; CHECK-NEXT: {{  $}}
     ; CHECK-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; CHECK-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.3, addrspace 5)
     ; CHECK-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; CHECK-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr33, 0, undef $vgpr2
@@ -52,7 +52,7 @@ body:             |
     ; CHECK-NEXT: $sgpr32 = frame-destroy S_ADD_I32 $sgpr32, -2097152, implicit-def dead $scc
     ; CHECK-NEXT: $sgpr33 = V_READLANE_B32 $vgpr2, 0
     ; CHECK-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; CHECK-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.3, addrspace 5)
     ; CHECK-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; CHECK-NEXT: S_ENDPGM 0, implicit $vcc

diff  --git a/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-gfx9.mir b/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-gfx9.mir
index 4ab5307cbcb73..2562d20c8a927 100644
--- a/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-gfx9.mir
+++ b/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr-gfx9.mir
@@ -26,7 +26,7 @@ body:             |
     ; MUBUF: liveins: $vgpr1, $vgpr2
     ; MUBUF-NEXT: {{  $}}
     ; MUBUF-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; MUBUF-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; MUBUF-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; MUBUF-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.3, addrspace 5)
     ; MUBUF-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; MUBUF-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr33, 0, undef $vgpr2
@@ -42,7 +42,7 @@ body:             |
     ; MUBUF-NEXT: $sgpr32 = frame-destroy S_ADD_I32 $sgpr32, -2097152, implicit-def dead $scc
     ; MUBUF-NEXT: $sgpr33 = V_READLANE_B32 $vgpr2, 0
     ; MUBUF-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; MUBUF-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; MUBUF-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; MUBUF-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.3, addrspace 5)
     ; MUBUF-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; MUBUF-NEXT: S_ENDPGM 0, implicit $vcc
@@ -50,7 +50,7 @@ body:             |
     ; FLATSCR: liveins: $vgpr1, $vgpr2
     ; FLATSCR-NEXT: {{  $}}
     ; FLATSCR-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def $scc
+    ; FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def dead $scc
     ; FLATSCR-NEXT: SCRATCH_STORE_DWORD_SADDR killed $vgpr2, killed $sgpr6, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.3, addrspace 5)
     ; FLATSCR-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; FLATSCR-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr33, 0, undef $vgpr2
@@ -67,7 +67,7 @@ body:             |
     ; FLATSCR-NEXT: $sgpr32 = frame-destroy S_ADD_I32 $sgpr32, -32768, implicit-def dead $scc
     ; FLATSCR-NEXT: $sgpr33 = V_READLANE_B32 $vgpr2, 0
     ; FLATSCR-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def $scc
+    ; FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def dead $scc
     ; FLATSCR-NEXT: $vgpr2 = SCRATCH_LOAD_DWORD_SADDR killed $sgpr6, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %stack.3, addrspace 5)
     ; FLATSCR-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; FLATSCR-NEXT: S_ENDPGM 0, implicit $vcc

diff  --git a/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr.mir b/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr.mir
index 74df03b12f794..c342cc63d7113 100644
--- a/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr.mir
+++ b/llvm/test/CodeGen/AMDGPU/pei-scavenge-sgpr.mir
@@ -25,7 +25,7 @@ body:             |
     ; CHECK: liveins: $vgpr1, $vgpr2
     ; CHECK-NEXT: {{  $}}
     ; CHECK-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 262400, implicit-def $scc
+    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 262400, implicit-def dead $scc
     ; CHECK-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.2, addrspace 5)
     ; CHECK-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; CHECK-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr33, 0, undef $vgpr2
@@ -42,7 +42,7 @@ body:             |
     ; CHECK-NEXT: $sgpr32 = frame-destroy S_ADD_I32 $sgpr32, -786432, implicit-def dead $scc
     ; CHECK-NEXT: $sgpr33 = V_READLANE_B32 $vgpr2, 0
     ; CHECK-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 262400, implicit-def $scc
+    ; CHECK-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 262400, implicit-def dead $scc
     ; CHECK-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.2, addrspace 5)
     ; CHECK-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; CHECK-NEXT: S_ENDPGM 0, implicit $vcc

diff  --git a/llvm/test/CodeGen/AMDGPU/pei-scavenge-vgpr-spill.mir b/llvm/test/CodeGen/AMDGPU/pei-scavenge-vgpr-spill.mir
index 863e867e47062..11a61144bac95 100644
--- a/llvm/test/CodeGen/AMDGPU/pei-scavenge-vgpr-spill.mir
+++ b/llvm/test/CodeGen/AMDGPU/pei-scavenge-vgpr-spill.mir
@@ -27,7 +27,7 @@ body:             |
     ; GFX8: liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25_vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31, $vgpr32_vgpr33_vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41_vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47, $vgpr48_vgpr49_vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63, $vgpr64_vgpr65_vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73_vgpr74_vgpr75_vgpr76_vgpr77_vgpr78_vgpr79, $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87_vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, $vgpr96_vgpr97_vgpr98_vgpr99_vgpr100_vgpr101_vgpr102_vgpr103_vgpr104_vgpr105_vgpr106_vgpr107_vgpr108_vgpr109_vgpr110_vgpr111, $vgpr112_vgpr113_vgpr114_vgpr115_vgpr116_vgpr117_vgpr118_vgpr119_vgpr120_vgpr121_vgpr122_vgpr123_vgpr124_vgpr125_vgpr126_vgpr127, $vgpr128_vgpr129_vgpr130_vgpr131_vgpr132_vgpr133_vgpr134_vgpr135_vgpr136_vgpr137_vgpr138_vgpr139_vgpr140_vgpr141_vgpr142_vgpr143, $vgpr144_vgpr145_vgpr146_vgpr147_vgpr148_vgpr149_vgpr150_vgpr151_vgpr152_vgpr153_vgpr154_vgpr155_vgpr156_vgpr157_vgpr158_vgpr159, $vgpr160_vgpr161_vgpr162_vgpr163_vgpr164_vgpr165_vgpr166_vgpr167_vgpr168_vgpr169_vgpr170_vgpr171_vgpr172_vgpr173_vgpr174_vgpr175, $vgpr176_vgpr177_vgpr178_vgpr179_vgpr180_vgpr181_vgpr182_vgpr183_vgpr184_vgpr185_vgpr186_vgpr187_vgpr188_vgpr189_vgpr190_vgpr191, $vgpr192_vgpr193_vgpr194_vgpr195_vgpr196_vgpr197_vgpr198_vgpr199_vgpr200_vgpr201_vgpr202_vgpr203_vgpr204_vgpr205_vgpr206_vgpr207, $vgpr208_vgpr209_vgpr210_vgpr211_vgpr212_vgpr213_vgpr214_vgpr215_vgpr216_vgpr217_vgpr218_vgpr219_vgpr220_vgpr221_vgpr222_vgpr223, $vgpr224_vgpr225_vgpr226_vgpr227_vgpr228_vgpr229_vgpr230_vgpr231_vgpr232_vgpr233_vgpr234_vgpr235_vgpr236_vgpr237_vgpr238_vgpr239, $vgpr240_vgpr241_vgpr242_vgpr243_vgpr244_vgpr245_vgpr246_vgpr247, $vgpr248_vgpr249_vgpr250_vgpr251, $vgpr252_vgpr253_vgpr254_vgpr255, $vgpr2
     ; GFX8-NEXT: {{  $}}
     ; GFX8-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; GFX8-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; GFX8-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; GFX8-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.3, addrspace 5)
     ; GFX8-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; GFX8-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr33, 0, undef $vgpr2
@@ -45,7 +45,7 @@ body:             |
     ; GFX8-NEXT: $sgpr32 = frame-destroy S_ADD_I32 $sgpr32, -2097152, implicit-def dead $scc
     ; GFX8-NEXT: $sgpr33 = V_READLANE_B32 $vgpr2, 0
     ; GFX8-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; GFX8-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; GFX8-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; GFX8-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.3, addrspace 5)
     ; GFX8-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; GFX8-NEXT: $vgpr3 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr33, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.4, addrspace 5)
@@ -54,7 +54,7 @@ body:             |
     ; GFX9: liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25_vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31, $vgpr32_vgpr33_vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41_vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47, $vgpr48_vgpr49_vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63, $vgpr64_vgpr65_vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73_vgpr74_vgpr75_vgpr76_vgpr77_vgpr78_vgpr79, $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87_vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, $vgpr96_vgpr97_vgpr98_vgpr99_vgpr100_vgpr101_vgpr102_vgpr103_vgpr104_vgpr105_vgpr106_vgpr107_vgpr108_vgpr109_vgpr110_vgpr111, $vgpr112_vgpr113_vgpr114_vgpr115_vgpr116_vgpr117_vgpr118_vgpr119_vgpr120_vgpr121_vgpr122_vgpr123_vgpr124_vgpr125_vgpr126_vgpr127, $vgpr128_vgpr129_vgpr130_vgpr131_vgpr132_vgpr133_vgpr134_vgpr135_vgpr136_vgpr137_vgpr138_vgpr139_vgpr140_vgpr141_vgpr142_vgpr143, $vgpr144_vgpr145_vgpr146_vgpr147_vgpr148_vgpr149_vgpr150_vgpr151_vgpr152_vgpr153_vgpr154_vgpr155_vgpr156_vgpr157_vgpr158_vgpr159, $vgpr160_vgpr161_vgpr162_vgpr163_vgpr164_vgpr165_vgpr166_vgpr167_vgpr168_vgpr169_vgpr170_vgpr171_vgpr172_vgpr173_vgpr174_vgpr175, $vgpr176_vgpr177_vgpr178_vgpr179_vgpr180_vgpr181_vgpr182_vgpr183_vgpr184_vgpr185_vgpr186_vgpr187_vgpr188_vgpr189_vgpr190_vgpr191, $vgpr192_vgpr193_vgpr194_vgpr195_vgpr196_vgpr197_vgpr198_vgpr199_vgpr200_vgpr201_vgpr202_vgpr203_vgpr204_vgpr205_vgpr206_vgpr207, $vgpr208_vgpr209_vgpr210_vgpr211_vgpr212_vgpr213_vgpr214_vgpr215_vgpr216_vgpr217_vgpr218_vgpr219_vgpr220_vgpr221_vgpr222_vgpr223, $vgpr224_vgpr225_vgpr226_vgpr227_vgpr228_vgpr229_vgpr230_vgpr231_vgpr232_vgpr233_vgpr234_vgpr235_vgpr236_vgpr237_vgpr238_vgpr239, $vgpr240_vgpr241_vgpr242_vgpr243_vgpr244_vgpr245_vgpr246_vgpr247, $vgpr248_vgpr249_vgpr250_vgpr251, $vgpr252_vgpr253_vgpr254_vgpr255, $vgpr2
     ; GFX9-NEXT: {{  $}}
     ; GFX9-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; GFX9-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; GFX9-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; GFX9-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr2, $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.3, addrspace 5)
     ; GFX9-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; GFX9-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr33, 0, undef $vgpr2
@@ -70,7 +70,7 @@ body:             |
     ; GFX9-NEXT: $sgpr32 = frame-destroy S_ADD_I32 $sgpr32, -2097152, implicit-def dead $scc
     ; GFX9-NEXT: $sgpr33 = V_READLANE_B32 $vgpr2, 0
     ; GFX9-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; GFX9-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def $scc
+    ; GFX9-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 1048832, implicit-def dead $scc
     ; GFX9-NEXT: $vgpr2 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, killed $sgpr6, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.3, addrspace 5)
     ; GFX9-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; GFX9-NEXT: $vgpr3 = BUFFER_LOAD_DWORD_OFFSET $sgpr0_sgpr1_sgpr2_sgpr3, $sgpr33, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.4, addrspace 5)
@@ -79,7 +79,7 @@ body:             |
     ; GFX9-FLATSCR: liveins: $vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7_vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23_vgpr24_vgpr25_vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31, $vgpr32_vgpr33_vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41_vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47, $vgpr48_vgpr49_vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55_vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63, $vgpr64_vgpr65_vgpr66_vgpr67_vgpr68_vgpr69_vgpr70_vgpr71_vgpr72_vgpr73_vgpr74_vgpr75_vgpr76_vgpr77_vgpr78_vgpr79, $vgpr80_vgpr81_vgpr82_vgpr83_vgpr84_vgpr85_vgpr86_vgpr87_vgpr88_vgpr89_vgpr90_vgpr91_vgpr92_vgpr93_vgpr94_vgpr95, $vgpr96_vgpr97_vgpr98_vgpr99_vgpr100_vgpr101_vgpr102_vgpr103_vgpr104_vgpr105_vgpr106_vgpr107_vgpr108_vgpr109_vgpr110_vgpr111, $vgpr112_vgpr113_vgpr114_vgpr115_vgpr116_vgpr117_vgpr118_vgpr119_vgpr120_vgpr121_vgpr122_vgpr123_vgpr124_vgpr125_vgpr126_vgpr127, $vgpr128_vgpr129_vgpr130_vgpr131_vgpr132_vgpr133_vgpr134_vgpr135_vgpr136_vgpr137_vgpr138_vgpr139_vgpr140_vgpr141_vgpr142_vgpr143, $vgpr144_vgpr145_vgpr146_vgpr147_vgpr148_vgpr149_vgpr150_vgpr151_vgpr152_vgpr153_vgpr154_vgpr155_vgpr156_vgpr157_vgpr158_vgpr159, $vgpr160_vgpr161_vgpr162_vgpr163_vgpr164_vgpr165_vgpr166_vgpr167_vgpr168_vgpr169_vgpr170_vgpr171_vgpr172_vgpr173_vgpr174_vgpr175, $vgpr176_vgpr177_vgpr178_vgpr179_vgpr180_vgpr181_vgpr182_vgpr183_vgpr184_vgpr185_vgpr186_vgpr187_vgpr188_vgpr189_vgpr190_vgpr191, $vgpr192_vgpr193_vgpr194_vgpr195_vgpr196_vgpr197_vgpr198_vgpr199_vgpr200_vgpr201_vgpr202_vgpr203_vgpr204_vgpr205_vgpr206_vgpr207, $vgpr208_vgpr209_vgpr210_vgpr211_vgpr212_vgpr213_vgpr214_vgpr215_vgpr216_vgpr217_vgpr218_vgpr219_vgpr220_vgpr221_vgpr222_vgpr223, $vgpr224_vgpr225_vgpr226_vgpr227_vgpr228_vgpr229_vgpr230_vgpr231_vgpr232_vgpr233_vgpr234_vgpr235_vgpr236_vgpr237_vgpr238_vgpr239, $vgpr240_vgpr241_vgpr242_vgpr243_vgpr244_vgpr245_vgpr246_vgpr247, $vgpr248_vgpr249_vgpr250_vgpr251, $vgpr252_vgpr253_vgpr254_vgpr255, $vgpr2
     ; GFX9-FLATSCR-NEXT: {{  $}}
     ; GFX9-FLATSCR-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; GFX9-FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def $scc
+    ; GFX9-FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def dead $scc
     ; GFX9-FLATSCR-NEXT: SCRATCH_STORE_DWORD_SADDR killed $vgpr2, killed $sgpr6, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.3, addrspace 5)
     ; GFX9-FLATSCR-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; GFX9-FLATSCR-NEXT: $vgpr2 = V_WRITELANE_B32 $sgpr33, 0, undef $vgpr2
@@ -93,7 +93,7 @@ body:             |
     ; GFX9-FLATSCR-NEXT: $sgpr32 = frame-destroy S_ADD_I32 $sgpr32, -32768, implicit-def dead $scc
     ; GFX9-FLATSCR-NEXT: $sgpr33 = V_READLANE_B32 $vgpr2, 0
     ; GFX9-FLATSCR-NEXT: $sgpr4_sgpr5 = S_OR_SAVEEXEC_B64 -1, implicit-def $exec, implicit-def dead $scc, implicit $exec
-    ; GFX9-FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def $scc
+    ; GFX9-FLATSCR-NEXT: $sgpr6 = S_ADD_I32 $sgpr32, 16388, implicit-def dead $scc
     ; GFX9-FLATSCR-NEXT: $vgpr2 = SCRATCH_LOAD_DWORD_SADDR killed $sgpr6, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %stack.3, addrspace 5)
     ; GFX9-FLATSCR-NEXT: $exec = S_MOV_B64 killed $sgpr4_sgpr5
     ; GFX9-FLATSCR-NEXT: S_ENDPGM 0, csr_amdgpu_allvgprs

diff  --git a/llvm/test/CodeGen/AMDGPU/sgpr-spill.mir b/llvm/test/CodeGen/AMDGPU/sgpr-spill.mir
index 64e6aac71569a..ed3b1b0006e9e 100644
--- a/llvm/test/CodeGen/AMDGPU/sgpr-spill.mir
+++ b/llvm/test/CodeGen/AMDGPU/sgpr-spill.mir
@@ -603,7 +603,7 @@ body:             |
     ; GCN64-MUBUF-NEXT: $exec = S_MOV_B64 1, implicit-def $vgpr0
     ; GCN64-MUBUF-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr28_sgpr29_sgpr30_sgpr31, $sgpr33, 0, 0, 0, 0, implicit $exec :: (store (s32) into %fixed-stack.0, align 16, addrspace 5)
     ; GCN64-MUBUF-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr12, 0, undef $vgpr0
-    ; GCN64-MUBUF-NEXT: $sgpr2 = S_ADD_I32 $sgpr33, 262144, implicit-def $scc
+    ; GCN64-MUBUF-NEXT: $sgpr2 = S_ADD_I32 $sgpr33, 262144, implicit-def dead $scc
     ; GCN64-MUBUF-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr28_sgpr29_sgpr30_sgpr31, killed $sgpr2, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.8, align 4096, addrspace 5)
     ; GCN64-MUBUF-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr28_sgpr29_sgpr30_sgpr31, $sgpr33, 0, 0, 0, 0, implicit $exec :: (load (s32) from %fixed-stack.0, align 16, addrspace 5)
     ; GCN64-MUBUF-NEXT: $exec = S_MOV_B64 killed $sgpr0_sgpr1, implicit killed $vgpr0
@@ -766,7 +766,7 @@ body:             |
     ; GCN32-MUBUF-NEXT: $exec_lo = S_MOV_B32 1, implicit-def $vgpr0
     ; GCN32-MUBUF-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr96_sgpr97_sgpr98_sgpr99, $sgpr33, 0, 0, 0, 0, implicit $exec :: (store (s32) into %fixed-stack.0, align 16, addrspace 5)
     ; GCN32-MUBUF-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr12, 0, undef $vgpr0
-    ; GCN32-MUBUF-NEXT: $sgpr1 = S_ADD_I32 $sgpr33, 131072, implicit-def $scc
+    ; GCN32-MUBUF-NEXT: $sgpr1 = S_ADD_I32 $sgpr33, 131072, implicit-def dead $scc
     ; GCN32-MUBUF-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr96_sgpr97_sgpr98_sgpr99, killed $sgpr1, 0, 0, 0, 0, implicit $exec :: (store (s32) into %stack.8, align 4096, addrspace 5)
     ; GCN32-MUBUF-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr96_sgpr97_sgpr98_sgpr99, $sgpr33, 0, 0, 0, 0, implicit $exec :: (load (s32) from %fixed-stack.0, align 16, addrspace 5)
     ; GCN32-MUBUF-NEXT: $exec_lo = S_MOV_B32 killed $sgpr0, implicit killed $vgpr0
@@ -925,7 +925,7 @@ body:             |
     ; GCN64-FLATSCR-NEXT: $exec = S_MOV_B64 1, implicit-def $vgpr0
     ; GCN64-FLATSCR-NEXT: SCRATCH_STORE_DWORD_SADDR killed $vgpr0, $sgpr33, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %fixed-stack.0, align 16, addrspace 5)
     ; GCN64-FLATSCR-NEXT: $vgpr0 = V_WRITELANE_B32 $sgpr12, 0, undef $vgpr0
-    ; GCN64-FLATSCR-NEXT: $sgpr9 = S_ADD_I32 $sgpr33, 4096, implicit-def $scc
+    ; GCN64-FLATSCR-NEXT: $sgpr9 = S_ADD_I32 $sgpr33, 4096, implicit-def dead $scc
     ; GCN64-FLATSCR-NEXT: SCRATCH_STORE_DWORD_SADDR killed $vgpr0, killed $sgpr9, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %stack.8, align 4096, addrspace 5)
     ; GCN64-FLATSCR-NEXT: $vgpr0 = SCRATCH_LOAD_DWORD_SADDR $sgpr33, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %fixed-stack.0, align 16, addrspace 5)
     ; GCN64-FLATSCR-NEXT: $exec = S_MOV_B64 killed $sgpr2_sgpr3, implicit killed $vgpr0
@@ -1133,7 +1133,7 @@ body:             |
     ; GCN64-MUBUF-NEXT: $sgpr0_sgpr1 = S_MOV_B64 $exec
     ; GCN64-MUBUF-NEXT: $exec = S_MOV_B64 1, implicit-def $vgpr0
     ; GCN64-MUBUF-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr28_sgpr29_sgpr30_sgpr31, $sgpr33, 0, 0, 0, 0, implicit $exec :: (store (s32) into %fixed-stack.0, align 16, addrspace 5)
-    ; GCN64-MUBUF-NEXT: $sgpr2 = S_ADD_I32 $sgpr33, 262144, implicit-def $scc
+    ; GCN64-MUBUF-NEXT: $sgpr2 = S_ADD_I32 $sgpr33, 262144, implicit-def dead $scc
     ; GCN64-MUBUF-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr28_sgpr29_sgpr30_sgpr31, killed $sgpr2, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.8, align 4096, addrspace 5)
     ; GCN64-MUBUF-NEXT: $sgpr12 = V_READLANE_B32 killed $vgpr0, 0
     ; GCN64-MUBUF-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr28_sgpr29_sgpr30_sgpr31, $sgpr33, 0, 0, 0, 0, implicit $exec :: (load (s32) from %fixed-stack.0, align 16, addrspace 5)
@@ -1270,7 +1270,7 @@ body:             |
     ; GCN32-MUBUF-NEXT: $sgpr0 = S_MOV_B32 $exec_lo
     ; GCN32-MUBUF-NEXT: $exec_lo = S_MOV_B32 1, implicit-def $vgpr0
     ; GCN32-MUBUF-NEXT: BUFFER_STORE_DWORD_OFFSET killed $vgpr0, $sgpr96_sgpr97_sgpr98_sgpr99, $sgpr33, 0, 0, 0, 0, implicit $exec :: (store (s32) into %fixed-stack.0, align 16, addrspace 5)
-    ; GCN32-MUBUF-NEXT: $sgpr1 = S_ADD_I32 $sgpr33, 131072, implicit-def $scc
+    ; GCN32-MUBUF-NEXT: $sgpr1 = S_ADD_I32 $sgpr33, 131072, implicit-def dead $scc
     ; GCN32-MUBUF-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr96_sgpr97_sgpr98_sgpr99, killed $sgpr1, 0, 0, 0, 0, implicit $exec :: (load (s32) from %stack.8, align 4096, addrspace 5)
     ; GCN32-MUBUF-NEXT: $sgpr12 = V_READLANE_B32 killed $vgpr0, 0
     ; GCN32-MUBUF-NEXT: $vgpr0 = BUFFER_LOAD_DWORD_OFFSET $sgpr96_sgpr97_sgpr98_sgpr99, $sgpr33, 0, 0, 0, 0, implicit $exec :: (load (s32) from %fixed-stack.0, align 16, addrspace 5)
@@ -1403,7 +1403,7 @@ body:             |
     ; GCN64-FLATSCR-NEXT: $sgpr2_sgpr3 = S_MOV_B64 $exec
     ; GCN64-FLATSCR-NEXT: $exec = S_MOV_B64 1, implicit-def $vgpr0
     ; GCN64-FLATSCR-NEXT: SCRATCH_STORE_DWORD_SADDR killed $vgpr0, $sgpr33, 0, 0, implicit $exec, implicit $flat_scr :: (store (s32) into %fixed-stack.0, align 16, addrspace 5)
-    ; GCN64-FLATSCR-NEXT: $sgpr9 = S_ADD_I32 $sgpr33, 4096, implicit-def $scc
+    ; GCN64-FLATSCR-NEXT: $sgpr9 = S_ADD_I32 $sgpr33, 4096, implicit-def dead $scc
     ; GCN64-FLATSCR-NEXT: $vgpr0 = SCRATCH_LOAD_DWORD_SADDR killed $sgpr9, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %stack.8, align 4096, addrspace 5)
     ; GCN64-FLATSCR-NEXT: $sgpr12 = V_READLANE_B32 killed $vgpr0, 0
     ; GCN64-FLATSCR-NEXT: $vgpr0 = SCRATCH_LOAD_DWORD_SADDR $sgpr33, 0, 0, implicit $exec, implicit $flat_scr :: (load (s32) from %fixed-stack.0, align 16, addrspace 5)


        


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