[clang] [llvm] [AMDGPU] Implement 'llvm.get.fpenv' and 'llvm.set.fpenv' (PR #83906)

[Joseph Huber via cfe-commits]

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@@ -1122,7 +1122,7 @@ class S_SETREG_B32_Pseudo <list<dag> pattern=[]> : SOPK_Pseudo <
   pattern>;
 
 def S_SETREG_B32 : S_SETREG_B32_Pseudo <
-  [(int_amdgcn_s_setreg (i32 SIMM16bit:$simm16), i32:$sdst)]> {
+  [(int_amdgcn_s_setreg (i32 timm:$simm16), i32:$sdst)]> {
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jhuber6 wrote:

Okay, I think I got it to work by casting it to `int16_t` only on the store instruction. My previous mistake seems to have been changing the constant for both `set` and `get. It passes all the AMDGPU codegen tests now.

https://github.com/llvm/llvm-project/pull/83906