[llvm] be7cf63 - [AArch64] Add FPCR register usages to mop4 instructions (#135641)

[via llvm-commits]

Author: Virginia Cangelosi
Date: 2025-04-28T10:00:07+01:00
New Revision: be7cf63b4a402ebc5b1dacc6579a693c92e1328e

URL: https://github.com/llvm/llvm-project/commit/be7cf63b4a402ebc5b1dacc6579a693c92e1328e
DIFF: https://github.com/llvm/llvm-project/commit/be7cf63b4a402ebc5b1dacc6579a693c92e1328e.diff

LOG: [AArch64] Add FPCR register usages to mop4 instructions (#135641)

Ensure all floating mop4 instructions implicitly use FPCR

Added: 
    

Modified: 
    llvm/lib/Target/AArch64/SMEInstrFormats.td

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/AArch64/SMEInstrFormats.td b/llvm/lib/Target/AArch64/SMEInstrFormats.td
index 446aa45aaa38a..97e1da7df56b7 100644
--- a/llvm/lib/Target/AArch64/SMEInstrFormats.td
+++ b/llvm/lib/Target/AArch64/SMEInstrFormats.td
@@ -5601,6 +5601,7 @@ class sme2_bf16_fp32_quarter_tile_outer_product<bit M, bit N, bit S, string mnem
   let Inst{1-0} = ZAda;
 
   let Constraints = "$ZAda = $_ZAda";
+  let Uses = [FPCR];
 }
 
 multiclass sme2_bfmop4as_widening<bit S, string mnemonic, string op> {
@@ -5764,6 +5765,7 @@ class sme2_fp16_quarter_tile_outer_product<bit M, bit N, bit S, string mnemonic,
   let Inst{0} = ZAda;
 
   let Constraints = "$ZAda = $_ZAda";
+  let Uses = [FPCR];
 }
 
 multiclass sme2_fmop4as_fp16_non_widening<bit S, string mnemonic, string op> {
@@ -5869,6 +5871,7 @@ class sme2_bf16_fp16_quarter_tile_outer_product<bit M, bit N, bit S, string mnem
   let Inst{0} = ZAda;
 
   let Constraints = "$ZAda = $_ZAda";
+  let Uses = [FPCR];
 }
 
 multiclass sme2_bfmop4as_non_widening<bit S, string mnemonic, string op> {
@@ -5922,6 +5925,7 @@ class sme2_fp32_quarter_tile_outer_product<bit M, bit N, bit S, string mnemonic,
   let Inst{1-0} = ZAda;
 
   let Constraints = "$ZAda = $_ZAda";
+  let Uses = [FPCR];
 }
 
 multiclass sme2_fmop4as_fp32_non_widening<bit S, string mnemonic, string op> {
@@ -5975,6 +5979,7 @@ class sme2_fp64_quarter_tile_outer_product<bit M, bit N, bit S, string mnemonic,
   let Inst{2-0} = ZAda;
 
   let Constraints = "$ZAda = $_ZAda";
+  let Uses = [FPCR];
 }
 
 multiclass sme2_fmop4as_fp64_non_widening<bit S, string mnemonic, string op> {
@@ -6028,6 +6033,7 @@ class sme2_fp16_fp32_quarter_tile_outer_product<bit M, bit N, bit S, string mnem
   let Inst{1-0} = ZAda;
 
   let Constraints = "$ZAda = $_ZAda";
+  let Uses = [FPCR];
 }
 
 multiclass sme2_fmop4as_fp16_fp32_widening<bit S, string mnemonic, string op> {