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Revert "[RISCV] Refine cost on Min/Max reduction" #80340

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merged 1 commit into from
Feb 1, 2024

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@preames preames commented Feb 1, 2024

Reverts #79402. Crash reported. On closer inspection, this patch does not handle Intrinsic::maximum and Intrinsic::minimum.

@preames preames merged commit 59e5590 into main Feb 1, 2024
@preames preames deleted the revert-79402-cost-minmax-reduction branch February 1, 2024 21:09
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llvmbot commented Feb 1, 2024

@llvm/pr-subscribers-backend-risc-v

@llvm/pr-subscribers-llvm-analysis

Author: Philip Reames (preames)

Changes

Reverts llvm/llvm-project#79402. Crash reported. On closer inspection, this patch does not handle Intrinsic::maximum and Intrinsic::minimum.


Patch is 107.28 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/80340.diff

5 Files Affected:

  • (modified) llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp (+7-36)
  • (modified) llvm/test/Analysis/CostModel/RISCV/reduce-max.ll (+70-70)
  • (modified) llvm/test/Analysis/CostModel/RISCV/reduce-min.ll (+70-70)
  • (modified) llvm/test/Analysis/CostModel/RISCV/reduce-scalable-fp.ll (+42-42)
  • (modified) llvm/test/Analysis/CostModel/RISCV/reduce-scalable-int.ll (+48-48)
diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
index cb48720cc1902..d1db47a6061e4 100644
--- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
+++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp
@@ -970,42 +970,13 @@ RISCVTTIImpl::getMinMaxReductionCost(Intrinsic::ID IID, VectorType *Ty,
   }
 
   // IR Reduction is composed by two vmv and one rvv reduction instruction.
-  unsigned SplitOp;
-  SmallVector<unsigned, 3> Opcodes;
-  switch (IID) {
-  default:
-    llvm_unreachable("Unsupported intrinsic");
-  case Intrinsic::smax:
-    SplitOp = RISCV::VMAX_VV;
-    Opcodes = {RISCV::VMV_S_X, RISCV::VREDMAX_VS, RISCV::VMV_X_S};
-    break;
-  case Intrinsic::smin:
-    SplitOp = RISCV::VMIN_VV;
-    Opcodes = {RISCV::VMV_S_X, RISCV::VREDMIN_VS, RISCV::VMV_X_S};
-    break;
-  case Intrinsic::umax:
-    SplitOp = RISCV::VMAXU_VV;
-    Opcodes = {RISCV::VMV_S_X, RISCV::VREDMAXU_VS, RISCV::VMV_X_S};
-    break;
-  case Intrinsic::umin:
-    SplitOp = RISCV::VMINU_VV;
-    Opcodes = {RISCV::VMV_S_X, RISCV::VREDMINU_VS, RISCV::VMV_X_S};
-    break;
-  case Intrinsic::maxnum:
-    SplitOp = RISCV::VFMAX_VV;
-    Opcodes = {RISCV::VFMV_S_F, RISCV::VFREDMAX_VS, RISCV::VFMV_F_S};
-    break;
-  case Intrinsic::minnum:
-    SplitOp = RISCV::VFMIN_VV;
-    Opcodes = {RISCV::VFMV_S_F, RISCV::VFREDMIN_VS, RISCV::VFMV_F_S};
-    break;
-  }
-  // Add a cost for data larger than LMUL8
-  InstructionCost SplitCost =
-      (LT.first > 1) ? (LT.first - 1) *
-                           getRISCVInstructionCost(SplitOp, LT.second, CostKind)
-                     : 0;
-  return SplitCost + getRISCVInstructionCost(Opcodes, LT.second, CostKind);
+  InstructionCost BaseCost = 2;
+
+  if (CostKind == TTI::TCK_CodeSize)
+    return (LT.first - 1) + BaseCost;
+
+  unsigned VL = getEstimatedVLFor(Ty);
+  return (LT.first - 1) + BaseCost + Log2_32_Ceil(VL);
 }
 
 InstructionCost
diff --git a/llvm/test/Analysis/CostModel/RISCV/reduce-max.ll b/llvm/test/Analysis/CostModel/RISCV/reduce-max.ll
index 533a77dbd9f71..f3436b54df90a 100644
--- a/llvm/test/Analysis/CostModel/RISCV/reduce-max.ll
+++ b/llvm/test/Analysis/CostModel/RISCV/reduce-max.ll
@@ -51,14 +51,14 @@ define i32 @reduce_umax_i8(i32 %arg) {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SIZE-LABEL: 'reduce_umax_i8'
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V1 = call i8 @llvm.vector.reduce.umax.v1i8(<1 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.vector.reduce.umax.v2i8(<2 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.vector.reduce.umax.v4i8(<4 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V8 = call i8 @llvm.vector.reduce.umax.v8i8(<8 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16 = call i8 @llvm.vector.reduce.umax.v16i8(<16 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i8 @llvm.vector.reduce.umax.v32i8(<32 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V64 = call i8 @llvm.vector.reduce.umax.v64i8(<64 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V128 = call i8 @llvm.vector.reduce.umax.v128i8(<128 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V1 = call i8 @llvm.vector.reduce.umax.v1i8(<1 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i8 @llvm.vector.reduce.umax.v2i8(<2 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i8 @llvm.vector.reduce.umax.v4i8(<4 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i8 @llvm.vector.reduce.umax.v8i8(<8 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i8 @llvm.vector.reduce.umax.v16i8(<16 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32 = call i8 @llvm.vector.reduce.umax.v32i8(<32 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V64 = call i8 @llvm.vector.reduce.umax.v64i8(<64 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V128 = call i8 @llvm.vector.reduce.umax.v128i8(<128 x i8> undef)
 ; SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
 ;
   %V1   = call i8 @llvm.vector.reduce.umax.v1i8(<1 x i8> undef)
@@ -85,14 +85,14 @@ define i32 @reduce_umax_i16(i32 %arg) {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SIZE-LABEL: 'reduce_umax_i16'
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V1 = call i16 @llvm.vector.reduce.umax.v1i16(<1 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.vector.reduce.umax.v2i16(<2 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.vector.reduce.umax.v4i16(<4 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V8 = call i16 @llvm.vector.reduce.umax.v8i16(<8 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16 = call i16 @llvm.vector.reduce.umax.v16i16(<16 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i16 @llvm.vector.reduce.umax.v32i16(<32 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V64 = call i16 @llvm.vector.reduce.umax.v64i16(<64 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V128 = call i16 @llvm.vector.reduce.umax.v128i16(<128 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V1 = call i16 @llvm.vector.reduce.umax.v1i16(<1 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i16 @llvm.vector.reduce.umax.v2i16(<2 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i16 @llvm.vector.reduce.umax.v4i16(<4 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i16 @llvm.vector.reduce.umax.v8i16(<8 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i16 @llvm.vector.reduce.umax.v16i16(<16 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32 = call i16 @llvm.vector.reduce.umax.v32i16(<32 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V64 = call i16 @llvm.vector.reduce.umax.v64i16(<64 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V128 = call i16 @llvm.vector.reduce.umax.v128i16(<128 x i16> undef)
 ; SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
 ;
   %V1   = call i16 @llvm.vector.reduce.umax.v1i16(<1 x i16> undef)
@@ -115,18 +115,18 @@ define i32 @reduce_umax_i32(i32 %arg) {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V16 = call i32 @llvm.vector.reduce.umax.v16i32(<16 x i32> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V32 = call i32 @llvm.vector.reduce.umax.v32i32(<32 x i32> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V64 = call i32 @llvm.vector.reduce.umax.v64i32(<64 x i32> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V128 = call i32 @llvm.vector.reduce.umax.v128i32(<128 x i32> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V128 = call i32 @llvm.vector.reduce.umax.v128i32(<128 x i32> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SIZE-LABEL: 'reduce_umax_i32'
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V1 = call i32 @llvm.vector.reduce.umax.v1i32(<1 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i32 @llvm.vector.reduce.umax.v2i32(<2 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i32 @llvm.vector.reduce.umax.v4i32(<4 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V8 = call i32 @llvm.vector.reduce.umax.v8i32(<8 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16 = call i32 @llvm.vector.reduce.umax.v16i32(<16 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i32 @llvm.vector.reduce.umax.v32i32(<32 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V64 = call i32 @llvm.vector.reduce.umax.v64i32(<64 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V128 = call i32 @llvm.vector.reduce.umax.v128i32(<128 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V1 = call i32 @llvm.vector.reduce.umax.v1i32(<1 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i32 @llvm.vector.reduce.umax.v2i32(<2 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i32 @llvm.vector.reduce.umax.v4i32(<4 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i32 @llvm.vector.reduce.umax.v8i32(<8 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i32 @llvm.vector.reduce.umax.v16i32(<16 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32 = call i32 @llvm.vector.reduce.umax.v32i32(<32 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V64 = call i32 @llvm.vector.reduce.umax.v64i32(<64 x i32> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V128 = call i32 @llvm.vector.reduce.umax.v128i32(<128 x i32> undef)
 ; SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
 ;
   %V1   = call i32 @llvm.vector.reduce.umax.v1i32(<1 x i32> undef)
@@ -148,19 +148,19 @@ define i32 @reduce_umax_i64(i32 %arg) {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V8 = call i64 @llvm.vector.reduce.umax.v8i64(<8 x i64> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V16 = call i64 @llvm.vector.reduce.umax.v16i64(<16 x i64> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V32 = call i64 @llvm.vector.reduce.umax.v32i64(<32 x i64> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 15 for instruction: %V64 = call i64 @llvm.vector.reduce.umax.v64i64(<64 x i64> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 31 for instruction: %V128 = call i64 @llvm.vector.reduce.umax.v128i64(<128 x i64> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 9 for instruction: %V64 = call i64 @llvm.vector.reduce.umax.v64i64(<64 x i64> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 12 for instruction: %V128 = call i64 @llvm.vector.reduce.umax.v128i64(<128 x i64> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SIZE-LABEL: 'reduce_umax_i64'
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V1 = call i64 @llvm.vector.reduce.umax.v1i64(<1 x i64> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i64 @llvm.vector.reduce.umax.v2i64(<2 x i64> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i64 @llvm.vector.reduce.umax.v4i64(<4 x i64> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V8 = call i64 @llvm.vector.reduce.umax.v8i64(<8 x i64> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16 = call i64 @llvm.vector.reduce.umax.v16i64(<16 x i64> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i64 @llvm.vector.reduce.umax.v32i64(<32 x i64> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 4 for instruction: %V64 = call i64 @llvm.vector.reduce.umax.v64i64(<64 x i64> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V128 = call i64 @llvm.vector.reduce.umax.v128i64(<128 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V1 = call i64 @llvm.vector.reduce.umax.v1i64(<1 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i64 @llvm.vector.reduce.umax.v2i64(<2 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i64 @llvm.vector.reduce.umax.v4i64(<4 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i64 @llvm.vector.reduce.umax.v8i64(<8 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i64 @llvm.vector.reduce.umax.v16i64(<16 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32 = call i64 @llvm.vector.reduce.umax.v32i64(<32 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V64 = call i64 @llvm.vector.reduce.umax.v64i64(<64 x i64> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 5 for instruction: %V128 = call i64 @llvm.vector.reduce.umax.v128i64(<128 x i64> undef)
 ; SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
 ;
   %V1   = call i64 @llvm.vector.reduce.umax.v1i64(<1 x i64> undef)
@@ -221,14 +221,14 @@ define i32 @reduce_smax_i8(i32 %arg) {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SIZE-LABEL: 'reduce_smax_i8'
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V1 = call i8 @llvm.vector.reduce.smax.v1i8(<1 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i8 @llvm.vector.reduce.smax.v2i8(<2 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i8 @llvm.vector.reduce.smax.v4i8(<4 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V8 = call i8 @llvm.vector.reduce.smax.v8i8(<8 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16 = call i8 @llvm.vector.reduce.smax.v16i8(<16 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i8 @llvm.vector.reduce.smax.v32i8(<32 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V64 = call i8 @llvm.vector.reduce.smax.v64i8(<64 x i8> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V128 = call i8 @llvm.vector.reduce.smax.v128i8(<128 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V1 = call i8 @llvm.vector.reduce.smax.v1i8(<1 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i8 @llvm.vector.reduce.smax.v2i8(<2 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i8 @llvm.vector.reduce.smax.v4i8(<4 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i8 @llvm.vector.reduce.smax.v8i8(<8 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i8 @llvm.vector.reduce.smax.v16i8(<16 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32 = call i8 @llvm.vector.reduce.smax.v32i8(<32 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V64 = call i8 @llvm.vector.reduce.smax.v64i8(<64 x i8> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V128 = call i8 @llvm.vector.reduce.smax.v128i8(<128 x i8> undef)
 ; SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
 ;
   %V1   = call i8 @llvm.vector.reduce.smax.v1i8(<1 x i8> undef)
@@ -255,14 +255,14 @@ define i32 @reduce_smax_i16(i32 %arg) {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SIZE-LABEL: 'reduce_smax_i16'
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V1 = call i16 @llvm.vector.reduce.smax.v1i16(<1 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i16 @llvm.vector.reduce.smax.v2i16(<2 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i16 @llvm.vector.reduce.smax.v4i16(<4 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V8 = call i16 @llvm.vector.reduce.smax.v8i16(<8 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V16 = call i16 @llvm.vector.reduce.smax.v16i16(<16 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V32 = call i16 @llvm.vector.reduce.smax.v32i16(<32 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V64 = call i16 @llvm.vector.reduce.smax.v64i16(<64 x i16> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V128 = call i16 @llvm.vector.reduce.smax.v128i16(<128 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V1 = call i16 @llvm.vector.reduce.smax.v1i16(<1 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V2 = call i16 @llvm.vector.reduce.smax.v2i16(<2 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V4 = call i16 @llvm.vector.reduce.smax.v4i16(<4 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V8 = call i16 @llvm.vector.reduce.smax.v8i16(<8 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V16 = call i16 @llvm.vector.reduce.smax.v16i16(<16 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V32 = call i16 @llvm.vector.reduce.smax.v32i16(<32 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V64 = call i16 @llvm.vector.reduce.smax.v64i16(<64 x i16> undef)
+; SIZE-NEXT:  Cost Model: Found an estimated cost of 2 for instruction: %V128 = call i16 @llvm.vector.reduce.smax.v128i16(<128 x i16> undef)
 ; SIZE-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret i32 undef
 ;
   %V1   = call i16 @llvm.vector.reduce.smax.v1i16(<1 x i16> undef)
@@ -285,18 +285,18 @@ define i32 @reduce_smax_i32(i32 %arg) {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 6 for instruction: %V16 = call i32 @llvm.vector.reduce.smax.v16i32(<16 x i32> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %V32 = call i32 @llvm.vector.reduce.smax.v32i32(<32 x i32> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %V64 = call i32 @llvm.vector.reduce.smax.v64i32(<64 x i32> undef)
-; CHECK-NEXT:  Cost Model: Found an estimated cost of 16 for instruction: %V128 = call i32 @llvm.vector.reduce.smax.v128i32(<128 x i32> undef)
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 10 for instruction: %V128 = call i32 @llvm.vector.reduce.smax.v128i32(<128 x i32> undef)
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
 ; SIZE-LABEL: 'reduce_smax_i32'
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V1 = call i32 @llvm.vector.reduce.smax.v1i32(<1 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V2 = call i32 @llvm.vector.reduce.smax.v2i32(<2 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %V4 = call i32 @llvm.vector.reduce.smax.v4i32(<4 x i32> undef)
-; SIZE-NEXT:  Cost Model: Found an estimated cost of 3 for instruction...
[truncated]

ichaer added a commit to ichaer/llvm-project-onesided_lower_bound that referenced this pull request Feb 2, 2024
* llvm/main: (500 commits)
  [docs] Add beginner-focused office hours (llvm#80308)
  [mlir][sparse] external entry method wrapper for sparse tensors (llvm#80326)
  [StackSlotColoring] Ignore non-spill objects in RemoveDeadStores. (llvm#80242)
  [libc][stdbit] fix return types (llvm#80337)
  Revert "[RISCV] Refine cost on Min/Max reduction" (llvm#80340)
  [TTI]Add support for strided loads/stores.
  [analyzer][HTMLRewriter] Cache partial rewrite results. (llvm#80220)
  [flang][openacc][openmp] Use #0 from hlfir.declare value when generating bound ops (llvm#80317)
  [AArch64][PAC] Expand blend(reg, imm) operation in aarch64-pauth pass (llvm#74729)
  [SHT_LLVM_BB_ADDR_MAP][llvm-readobj] Implements llvm-readobj handling for PGOAnalysisMap. (llvm#79520)
  [libc] add bazel support for most of unistd (llvm#80078)
  [clang-tidy] Remove enforcement of rule C.48 from cppcoreguidelines-prefer-member-init (llvm#80330)
  [OpenMP] Fix typo (NFC) (llvm#80332)
  [BOLT] Enable re-writing of Linux kernel binary (llvm#80228)
  [BOLT] Adjust section sizes based on file offsets (llvm#80226)
  [libc] fix stdbit include test when not all entrypoints are available (llvm#80323)
  [RISCV][GISel] RegBank select and instruction select for vector G_ADD, G_SUB (llvm#74114)
  [RISCV] Add srmcfg CSR from Ssqosid extension. (llvm#79914)
  [mlir][sparse] add sparsification options to pretty print and debug s… (llvm#80205)
  [RISCV][MC] MC layer support for the experimental zalasr extension (llvm#79911)
  ...
arcbbb added a commit to arcbbb/llvm-project that referenced this pull request Feb 3, 2024
This is to add test coverage for crash report in llvm#80340
arcbbb added a commit that referenced this pull request Feb 5, 2024
This is to add test coverage for crash report in #80340
agozillon pushed a commit to agozillon/llvm-project that referenced this pull request Feb 5, 2024
Reverts llvm#79402. Crash reported. On closer inspection,
this patch does not handle Intrinsic::maximum and Intrinsic::minimum.
agozillon pushed a commit to agozillon/llvm-project that referenced this pull request Feb 5, 2024
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