[clang] [AMDGPU] Update log lowering to remove contract for AMDGCN backend (PR #168770)

https://github.com/adelejjeh updated https://github.com/llvm/llvm-project/pull/168770 >From 925df13db78370da9785bcb0fa90b89c09ce2470 Mon Sep 17 00:00:00 2001 From: Adel Ejjeh Date: Wed, 19 Nov 2025 15:19:27 -0600 Subject: [PATCH] [AMDGPU] Update log lowering to remove contract for AMDGCN backe

[clang] [AMDGPU] Update log lowering to remove contract for AMDGCN backend (PR #168770)

https://github.com/adelejjeh created https://github.com/llvm/llvm-project/pull/168770 ## Problem Summary PyTorch's `test_warp_softmax_64bit_indexing` began failing after latest mainline promotion. The test failure manifested as a numerical precision error where `log(1.1422761679)` computed wi