[clang] [llvm] [clang][llvm][SPIR-V] Explicitly encode native integer widths for SPIR-V (PR #110695)

[Vyacheslav Levytskyy via cfe-commits]

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@@ -1,12 +1,14 @@
 ; This test aims to check ability to support "Arithmetic with Overflow" intrinsics
 ; in the special case when those intrinsics are being generated by the CodeGenPrepare;
-; pass during translations with optimization (note -O3 in llc arguments).
+; pass during translations with optimization (note -disable-lsr, to inhibit
+; strength reduction pre-empting with a more preferable match for this pattern
+; in llc arguments).
 
-; RUN: llc -O3 -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s
-; RUN: %if spirv-tools %{ llc -O3 -mtriple=spirv32-unknown-unknown %s -o - -filetype=obj | spirv-val %}
+; RUN: llc -O3 -disable-lsr -mtriple=spirv32-unknown-unknown %s -o - | FileCheck %s
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VyacheslavLevytskyy wrote:

Happy to help with motivation. The original intent is to have a minimized reproducer of an issue as a part of the test suite. The point of the test case is to feed SPIR-V Backend with LLVM IR without saturation arithmetic intrinsics and ensure that SPIR-V Backend is able to deal with those intrinsics appearing along the way in translation. There is a separate test case in the test suite for the same intrinsics explicitly represented in the input LLVM IR, and it's another case, different from this one.

https://github.com/llvm/llvm-project/pull/110695