[Mlir-commits] [clang] [llvm] [mlir] [clang][NVPTX] Add support for pzo in f32 to f16/bf16 conversions (PR #214667)

Srinivasa Ravi llvmlistbot at llvm.org
Tue Aug 25 08:06:16 PDT 2026


================
@@ -2280,68 +2280,81 @@ def : Pat<(int_nvvm_ui2f_rz i32:$a), (CVT_f32_u32 $a, CvtRZ)>;
 def : Pat<(int_nvvm_ui2f_rm i32:$a), (CVT_f32_u32 $a, CvtRM)>;
 def : Pat<(int_nvvm_ui2f_rp i32:$a), (CVT_f32_u32 $a, CvtRP)>;
 
-def : Pat<(int_nvvm_ff2bf16x2_rn f32:$a, f32:$b),      (CVT_bf16x2_f32 $a, $b, CvtRN)>;
-def : Pat<(int_nvvm_ff2bf16x2_rn_relu f32:$a, f32:$b), (CVT_bf16x2_f32 $a, $b, CvtRN_RELU)>;
-def : Pat<(int_nvvm_ff2bf16x2_rz f32:$a, f32:$b),      (CVT_bf16x2_f32 $a, $b, CvtRZ)>;
-def : Pat<(int_nvvm_ff2bf16x2_rz_relu f32:$a, f32:$b), (CVT_bf16x2_f32 $a, $b, CvtRZ_RELU)>;
-let Predicates = [PTX81, SM80] in {
-  def : Pat<(int_nvvm_ff2bf16x2_rn_satfinite f32:$a, f32:$b), (CVT_bf16x2_f32_sf $a, $b, CvtRN)>;
-  def : Pat<(int_nvvm_ff2bf16x2_rn_relu_satfinite f32:$a, f32:$b), (CVT_bf16x2_f32_sf $a, $b, CvtRN_RELU)>;
-  def : Pat<(int_nvvm_ff2bf16x2_rz_satfinite f32:$a, f32:$b), (CVT_bf16x2_f32_sf $a, $b, CvtRZ)>;
-  def : Pat<(int_nvvm_ff2bf16x2_rz_relu_satfinite f32:$a, f32:$b), (CVT_bf16x2_f32_sf $a, $b, CvtRZ_RELU)>;
-}
-let Predicates = [hasConvertWithStochasticRounding] in {
-def : Pat<(int_nvvm_ff2bf16x2_rs f32:$a, f32:$b, i32:$c),
-          (CVT_bf16x2_f32_rs $a, $b, $c, CvtRS)>;
-def : Pat<(int_nvvm_ff2bf16x2_rs_relu f32:$a, f32:$b, i32:$c),
-          (CVT_bf16x2_f32_rs $a, $b, $c, CvtRS_RELU)>;
-def : Pat<(int_nvvm_ff2bf16x2_rs_satfinite f32:$a, f32:$b, i32:$c), 
-          (CVT_bf16x2_f32_rs_sf $a, $b, $c, CvtRS)>;
-def : Pat<(int_nvvm_ff2bf16x2_rs_relu_satfinite f32:$a, f32:$b, i32:$c),  
-          (CVT_bf16x2_f32_rs_sf $a, $b, $c, CvtRS_RELU)>;
-}
-
-def : Pat<(int_nvvm_ff2f16x2_rn f32:$a, f32:$b),      (CVT_f16x2_f32 $a, $b, CvtRN)>;
-def : Pat<(int_nvvm_ff2f16x2_rn_relu f32:$a, f32:$b), (CVT_f16x2_f32 $a, $b, CvtRN_RELU)>;
-def : Pat<(int_nvvm_ff2f16x2_rz f32:$a, f32:$b),      (CVT_f16x2_f32 $a, $b, CvtRZ)>;
-def : Pat<(int_nvvm_ff2f16x2_rz_relu f32:$a, f32:$b), (CVT_f16x2_f32 $a, $b, CvtRZ_RELU)>;
-let Predicates = [PTX81, SM80] in {
-  def : Pat<(int_nvvm_ff2f16x2_rn_satfinite f32:$a, f32:$b), (CVT_f16x2_f32_sf $a, $b, CvtRN)>;
-  def : Pat<(int_nvvm_ff2f16x2_rn_relu_satfinite f32:$a, f32:$b), (CVT_f16x2_f32_sf $a, $b, CvtRN_RELU)>;
-  def : Pat<(int_nvvm_ff2f16x2_rz_satfinite f32:$a, f32:$b), (CVT_f16x2_f32_sf $a, $b, CvtRZ)>;
-  def : Pat<(int_nvvm_ff2f16x2_rz_relu_satfinite f32:$a, f32:$b), (CVT_f16x2_f32_sf $a, $b, CvtRZ_RELU)>;
+foreach rnd = ["rn", "rz"] in {
+  foreach relu = ["", "_relu"] in {
----------------
Wolfram70 wrote:

Changed so that both don't use "_" here, thanks!

https://github.com/llvm/llvm-project/pull/214667


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