[llvm] [NFC] Remove dead code (PR #106056)

[via llvm-commits]

https://github.com/ldrumm created https://github.com/llvm/llvm-project/pull/106056

There's an early exit branch a couple of lines earlier for `MVT == f64`. Convert to an assert rather than using the duplicate ternary here. This silences an opinionated static analyser that's been bugging me.

>From 08a44957d0b932e67b9bb41544017faaee917ded Mon Sep 17 00:00:00 2001
From: Luke Drummond <luke.drummond at codeplay.com>
Date: Mon, 26 Aug 2024 11:52:17 +0100
Subject: [PATCH] [NFC] Remove dead code

There's an early exit branch a couple of lines earlier for `MVT ==
f64`. Convert to an assert rather than using the duplicate ternary here.
This silences an opinionated static analyser that's been bugging me.
---
 llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
index cb3fbdb850c1ac..4cf7733a260ff0 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
@@ -745,8 +745,8 @@ GCNTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA,
   case Intrinsic::copysign:
     return NElts * getFullRateInstrCost();
   case Intrinsic::canonicalize: {
-    InstRate =
-        SLT == MVT::f64 ? get64BitInstrCost(CostKind) : getFullRateInstrCost();
+    assert(SLT != MVT::f64);
+    InstRate = getFullRateInstrCost();
     break;
   }
   case Intrinsic::uadd_sat: