[llvm] [AMDGPU][CodeGenPrepare] Narrow 64 bit math to 32 bit if profitable (PR #130577)

[Nikita Popov via llvm-commits]

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@@ -0,0 +1,231 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 < %s | FileCheck %s
+
+; REQUIRES: amdgpu-registered-target
+
+define i64 @narrow_add(i64 noundef %a, i64 noundef %b) {
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nikic wrote:

noundefs not needed?

https://github.com/llvm/llvm-project/pull/130577