[llvm] 8d2a199 - [AArch64] Add some fp16 cast cost-model tests.

[Florian Hahn via llvm-commits]

Author: Florian Hahn
Date: 2021-11-11T18:21:44Z
New Revision: 8d2a1994c89864e8757a192db34c8c91ab54eeda

URL: https://github.com/llvm/llvm-project/commit/8d2a1994c89864e8757a192db34c8c91ab54eeda
DIFF: https://github.com/llvm/llvm-project/commit/8d2a1994c89864e8757a192db34c8c91ab54eeda.diff

LOG: [AArch64] Add some fp16 cast cost-model tests.

This adds initial tests for cost-modeling {u,s}itofp for fp16 vectors.
At the moment, they are under-estimated in a couple of cases.

Added: 
    

Modified: 
    llvm/test/Analysis/CostModel/AArch64/cast.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/Analysis/CostModel/AArch64/cast.ll b/llvm/test/Analysis/CostModel/AArch64/cast.ll
index de70264ecbfcc..4f82add71d5bc 100644
--- a/llvm/test/Analysis/CostModel/AArch64/cast.ll
+++ b/llvm/test/Analysis/CostModel/AArch64/cast.ll
@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
-; RUN: opt -cost-model -analyze -mtriple=aarch64-none-linux-gnueabi %s -o - | FileCheck %s
+; RUN: opt -cost-model -analyze -mtriple=aarch64-none-linux-gnueabi %s -o - | FileCheck --check-prefixes=CHECK,NOFP16 %s
+; RUN: opt -cost-model -analyze -mtriple=aarch64-none-linux-gnueabi -mattr=+fullfp16 %s -o - | FileCheck --check-prefixes=CHECK,FULLFP16 %s
 
 define i32 @casts_no_users() {
 ; CHECK-LABEL: 'casts_no_users'
@@ -267,6 +268,30 @@ define i32 @casts_no_users() {
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 38 for instruction: %r247 = sitofp <16 x i16> undef to <16 x double>
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %r248 = uitofp <16 x i64> undef to <16 x double>
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 8 for instruction: %r249 = sitofp <16 x i64> undef to <16 x double>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r250 = uitofp <8 x i1> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r251 = sitofp <8 x i1> undef to <8 x half>
+; NOFP16-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r252 = uitofp <8 x i8> undef to <8 x half>
+; NOFP16-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r253 = sitofp <8 x i8> undef to <8 x half>
+; FULLFP16-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r252 = uitofp <8 x i8> undef to <8 x half>
+; FULLFP16-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r253 = sitofp <8 x i8> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r254 = uitofp <8 x i16> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: %r255 = sitofp <8 x i16> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %r256 = uitofp <8 x i32> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 3 for instruction: %r257 = sitofp <8 x i32> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %r258 = uitofp <8 x i64> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 7 for instruction: %r259 = sitofp <8 x i64> undef to <8 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 3 for instruction:   %r260 = uitofp <16 x i1> undef to <16 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 3 for instruction:   %r261 = sitofp <16 x i1> undef to <16 x half>
+; NOFP16-NEXT:  Cost Model: Found an estimated cost of 3 for instruction:   %r262 = uitofp <16 x i8> undef to <16 x half>
+; NOFP16-NEXT:  Cost Model: Found an estimated cost of 3 for instruction:   %r263 = sitofp <16 x i8> undef to <16 x half>
+; FULLFP16-NEXT:  Cost Model: Found an estimated cost of 3 for instruction:   %r262 = uitofp <16 x i8> undef to <16 x half>
+; FULLFP16-NEXT:  Cost Model: Found an estimated cost of 3 for instruction:   %r263 = sitofp <16 x i8> undef to <16 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction:   %r264 = uitofp <16 x i16> undef to <16 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 2 for instruction:   %r265 = sitofp <16 x i16> undef to <16 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 6 for instruction:   %r266 = uitofp <16 x i32> undef to <16 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 6 for instruction:   %r267 = sitofp <16 x i32> undef to <16 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 14 for instruction:   %r268 = uitofp <16 x i64> undef to <16 x half>
+; CHECK-NEXT:  Cost Model: Found an estimated cost of 14 for instruction:   %r269 = sitofp <16 x i64> undef to <16 x half>
 ; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: ret i32 undef
 ;
   %r0 = sext i1 undef to i8
@@ -549,6 +574,28 @@ define i32 @casts_no_users() {
   %r248 = uitofp <16 x i64> undef to <16 x double>
   %r249 = sitofp <16 x i64> undef to <16 x double>
 
+  %r250 = uitofp <8 x i1> undef to <8 x half>
+  %r251 = sitofp <8 x i1> undef to <8 x half>
+  %r252 = uitofp <8 x i8> undef to <8 x half>
+  %r253 = sitofp <8 x i8> undef to <8 x half>
+  %r254 = uitofp <8 x i16> undef to <8 x half>
+  %r255 = sitofp <8 x i16> undef to <8 x half>
+  %r256 = uitofp <8 x i32> undef to <8 x half>
+  %r257 = sitofp <8 x i32> undef to <8 x half>
+  %r258 = uitofp <8 x i64> undef to <8 x half>
+  %r259 = sitofp <8 x i64> undef to <8 x half>
+
+  %r260 = uitofp <16 x i1> undef to <16 x half>
+  %r261 = sitofp <16 x i1> undef to <16 x half>
+  %r262 = uitofp <16 x i8> undef to <16 x half>
+  %r263 = sitofp <16 x i8> undef to <16 x half>
+  %r264 = uitofp <16 x i16> undef to <16 x half>
+  %r265 = sitofp <16 x i16> undef to <16 x half>
+  %r266 = uitofp <16 x i32> undef to <16 x half>
+  %r267 = sitofp <16 x i32> undef to <16 x half>
+  %r268 = uitofp <16 x i64> undef to <16 x half>
+  %r269 = sitofp <16 x i64> undef to <16 x half>
+
   ret i32 undef
 }