llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Stanislav Mekhanoshin (rampitec)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/170396.diff


1 Files Affected:

- (modified) llvm/test/CodeGen/AMDGPU/hazard-gfx1250-flat-scr-hi.mir (+54-30) 


``````````diff
diff --git a/llvm/test/CodeGen/AMDGPU/hazard-gfx1250-flat-scr-hi.mir 
b/llvm/test/CodeGen/AMDGPU/hazard-gfx1250-flat-scr-hi.mir
index e3b28c5518695..5dafa1b72ed10 100644
--- a/llvm/test/CodeGen/AMDGPU/hazard-gfx1250-flat-scr-hi.mir
+++ b/llvm/test/CodeGen/AMDGPU/hazard-gfx1250-flat-scr-hi.mir
@@ -8,10 +8,12 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_ashr_i64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: [[S_ASHR_I64_:%[0-9]+]]:sreg_64 = S_ASHR_I64 undef %2:sreg_64, 
[[COPY]], implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: [[S_ASHR_I64_:%[0-9]+]]:sreg_64 = S_ASHR_I64 [[DEF]], 
[[COPY]], implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    %2:sreg_64 = S_ASHR_I64 undef %1:sreg_64, %0, implicit-def $scc
+    %2:sreg_64 = S_ASHR_I64 %1:sreg_64, %0, implicit-def $scc
 ...
 
 ---
@@ -21,10 +23,12 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_lshl_b64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: [[S_LSHL_B64_:%[0-9]+]]:sreg_64 = S_LSHL_B64 undef %2:sreg_64, 
[[COPY]], implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: [[S_LSHL_B64_:%[0-9]+]]:sreg_64 = S_LSHL_B64 [[DEF]], 
[[COPY]], implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    %2:sreg_64 = S_LSHL_B64 undef %1:sreg_64, %0, implicit-def $scc
+    %2:sreg_64 = S_LSHL_B64 %1:sreg_64, %0, implicit-def $scc
 ...
 
 ---
@@ -34,10 +38,12 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_lshr_b64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: [[S_LSHR_B64_:%[0-9]+]]:sreg_64 = S_LSHR_B64 undef %2:sreg_64, 
[[COPY]], implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: [[S_LSHR_B64_:%[0-9]+]]:sreg_64 = S_LSHR_B64 [[DEF]], 
[[COPY]], implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    %2:sreg_64 = S_LSHR_B64 undef %1:sreg_64, %0, implicit-def $scc
+    %2:sreg_64 = S_LSHR_B64 %1:sreg_64, %0, implicit-def $scc
 ...
 
 ---
@@ -47,10 +53,12 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_bfe_i64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: [[S_BFE_I64_:%[0-9]+]]:sreg_64 = S_BFE_I64 undef %2:sreg_64, 
[[COPY]], implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: [[S_BFE_I64_:%[0-9]+]]:sreg_64 = S_BFE_I64 [[DEF]], [[COPY]], 
implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    %2:sreg_64 = S_BFE_I64 undef %1:sreg_64, %0, implicit-def $scc
+    %2:sreg_64 = S_BFE_I64 %1:sreg_64, %0, implicit-def $scc
 ...
 
 ---
@@ -60,10 +68,12 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_bfe_u64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: [[S_BFE_U64_:%[0-9]+]]:sreg_64 = S_BFE_U64 undef %2:sreg_64, 
[[COPY]], implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: [[S_BFE_U64_:%[0-9]+]]:sreg_64 = S_BFE_U64 [[DEF]], [[COPY]], 
implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    %2:sreg_64 = S_BFE_U64 undef %1:sreg_64, %0, implicit-def $scc
+    %2:sreg_64 = S_BFE_U64 %1:sreg_64, %0, implicit-def $scc
 ...
 
 ---
@@ -86,10 +96,14 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_bitcmp0_b64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: S_BITCMP0_B64 undef %1:sreg_64, [[COPY]], implicit undef $scc, 
implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: $scc = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: S_BITCMP0_B64 [[DEF]], [[COPY]], implicit $scc, implicit-def 
$scc
+    %1:sreg_64 = IMPLICIT_DEF
+    $scc = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    S_BITCMP0_B64 undef %1:sreg_64, %0, implicit undef $scc, implicit-def $scc
+    S_BITCMP0_B64 %1:sreg_64, %0, implicit $scc, implicit-def $scc
 ...
 
 ---
@@ -99,10 +113,14 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_bitcmp1_b64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: S_BITCMP1_B64 undef %1:sreg_64, [[COPY]], implicit undef $scc, 
implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: $scc = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: S_BITCMP1_B64 [[DEF]], [[COPY]], implicit $scc, implicit-def 
$scc
+    %1:sreg_64 = IMPLICIT_DEF
+    $scc = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    S_BITCMP1_B64 undef %1:sreg_64, %0, implicit undef $scc, implicit-def $scc
+    S_BITCMP1_B64 %1:sreg_64, %0, implicit $scc, implicit-def $scc
 ...
 
 ---
@@ -125,10 +143,12 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_bitset0_b64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: [[S_BITSET0_B64_:%[0-9]+]]:sreg_64 = S_BITSET0_B64 [[COPY]], 
undef [[S_BITSET0_B64_]], implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: [[DEF:%[0-9]+]]:sreg_64 = S_BITSET0_B64 [[COPY]], [[DEF]], 
implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    %1:sreg_64 = S_BITSET0_B64 %0, undef %1:sreg_64, implicit-def $scc
+    %1:sreg_64 = S_BITSET0_B64 %0, %1:sreg_64, implicit-def $scc
 ...
 
 ---
@@ -138,10 +158,12 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_bitset1_b64
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: [[S_BITSET1_B64_:%[0-9]+]]:sreg_64 = S_BITSET1_B64 [[COPY]], 
undef [[S_BITSET1_B64_]], implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: [[DEF:%[0-9]+]]:sreg_64 = S_BITSET1_B64 [[COPY]], [[DEF]], 
implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    %1:sreg_64 = S_BITSET1_B64 %0, undef %1:sreg_64, implicit-def $scc
+    %1:sreg_64 = S_BITSET1_B64 %0, %1:sreg_64, implicit-def $scc
 ...
 
 ---
@@ -151,8 +173,10 @@ body:             |
   bb.0:
 
     ; GCN-LABEL: name: s_ashr_i64_phys_dst
-    ; GCN: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
-    ; GCN-NEXT: $sgpr0_sgpr1 = S_ASHR_I64 undef %1:sreg_64, [[COPY]], 
implicit-def $scc
+    ; GCN: [[DEF:%[0-9]+]]:sreg_64 = IMPLICIT_DEF
+    ; GCN-NEXT: [[COPY:%[0-9]+]]:sreg_32 = COPY $src_flat_scratch_base_hi
+    ; GCN-NEXT: $sgpr0_sgpr1 = S_ASHR_I64 [[DEF]], [[COPY]], implicit-def $scc
+    %1:sreg_64 = IMPLICIT_DEF
     %0:sreg_32 = COPY $src_flat_scratch_base_hi
-    $sgpr0_sgpr1 = S_ASHR_I64 undef %1:sreg_64, %0, implicit-def $scc
+    $sgpr0_sgpr1 = S_ASHR_I64 %1:sreg_64, %0, implicit-def $scc
 ...

``````````

</details>


https://github.com/llvm/llvm-project/pull/170396
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