[llvm] [SPIRV] Added Support for the constrained conversion intrinsics (PR #157437)

[Subash B via llvm-commits]

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@@ -0,0 +1,230 @@
+; RUN: llc -mtriple=spirv64-unknown-unknown %s -o - | FileCheck %s
+; RUN: %if spirv-tools %{ llc -mtriple=spirv64-unknown-unknown %s -o - -filetype=obj | spirv-val %}
+
+define float @sitofp_f32_i32(i32 %in) {
+; CHECK-DAG: OpName %[[#]] "conv"
+; CHECK-DAG: OpConvertSToF %[[#]] %[[#]]
+; CHECK-DAG: OpDecorate %[[#]] FPRoundingMode RTE
+; CHECK-DAG: OpReturnValue %[[#]]
+entry:
+    %conv = tail call float @llvm.experimental.constrained.sitofp.f32.i32(i32 %in, metadata !"round.tonearest", metadata !"fpexcept.strict")
+    ret float %conv
+}
+
+define float @sitofp_f32_i16(i16 %in) {
+; CHECK-DAG: OpName %[[#]] "conv1"
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SubashBoopathi wrote:

@arsenm I tried running utils/update_llc_test_checks.py on constrained-convert.ll. Instead of regenerating the CHECK: directives, it only inserted the autogenerated note at the top and the file end marker, while removing the existing checks in between. Could you clarify the correct way to use the script here? 

https://github.com/llvm/llvm-project/pull/157437