[PATCH] D152165: [InstCombine] Precommit tests for contractable fmuladd

[Jay Foad via Phabricator via llvm-commits]

foad created this revision.
foad added reviewers: nikic, spatel.
Herald added a subscriber: StephenFan.
Herald added a project: All.
foad requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152165

Files:
  llvm/test/Transforms/InstCombine/fma.ll


Index: llvm/test/Transforms/InstCombine/fma.ll
===================================================================
--- llvm/test/Transforms/InstCombine/fma.ll
+++ llvm/test/Transforms/InstCombine/fma.ll
@@ -192,6 +192,17 @@
   ret float %fmuladd
 }
 
+define float @fmuladd_fneg_x_fneg_y_contract(float %x, float %y, float %z) {
+; CHECK-LABEL: @fmuladd_fneg_x_fneg_y_contract(
+; CHECK-NEXT:    [[FMULADD:%.*]] = call contract float @llvm.fmuladd.f32(float [[X:%.*]], float [[Y:%.*]], float [[Z:%.*]])
+; CHECK-NEXT:    ret float [[FMULADD]]
+;
+  %x.fneg = fsub float -0.0, %x
+  %y.fneg = fsub float -0.0, %y
+  %fmuladd = call contract float @llvm.fmuladd.f32(float %x.fneg, float %y.fneg, float %z)
+  ret float %fmuladd
+}
+
 define float @fmuladd_fneg_x_fneg_y_fast(float %x, float %y, float %z) {
 ; CHECK-LABEL: @fmuladd_fneg_x_fneg_y_fast(
 ; CHECK-NEXT:    [[TMP1:%.*]] = fmul fast float [[X:%.*]], [[Y:%.*]]
@@ -204,6 +215,17 @@
   ret float %fmuladd
 }
 
+define float @fmuladd_unary_fneg_x_unary_fneg_y_contract(float %x, float %y, float %z) {
+; CHECK-LABEL: @fmuladd_unary_fneg_x_unary_fneg_y_contract(
+; CHECK-NEXT:    [[FMULADD:%.*]] = call contract float @llvm.fmuladd.f32(float [[X:%.*]], float [[Y:%.*]], float [[Z:%.*]])
+; CHECK-NEXT:    ret float [[FMULADD]]
+;
+  %x.fneg = fneg float %x
+  %y.fneg = fneg float %y
+  %fmuladd = call contract float @llvm.fmuladd.f32(float %x.fneg, float %y.fneg, float %z)
+  ret float %fmuladd
+}
+
 define float @fmuladd_unary_fneg_x_unary_fneg_y_fast(float %x, float %y, float %z) {
 ; CHECK-LABEL: @fmuladd_unary_fneg_x_unary_fneg_y_fast(
 ; CHECK-NEXT:    [[TMP1:%.*]] = fmul fast float [[X:%.*]], [[Y:%.*]]
@@ -283,6 +305,16 @@
   ret float %fmuladd
 }
 
+define float @fmuladd_fabs_x_fabs_x_contract(float %x, float %z) {
+; CHECK-LABEL: @fmuladd_fabs_x_fabs_x_contract(
+; CHECK-NEXT:    [[FMULADD:%.*]] = call contract float @llvm.fmuladd.f32(float [[X:%.*]], float [[X]], float [[Z:%.*]])
+; CHECK-NEXT:    ret float [[FMULADD]]
+;
+  %x.fabs = call float @llvm.fabs.f32(float %x)
+  %fmuladd = call contract float @llvm.fmuladd.f32(float %x.fabs, float %x.fabs, float %z)
+  ret float %fmuladd
+}
+
 define float @fmuladd_fabs_x_fabs_x_fast(float %x, float %z) {
 ; CHECK-LABEL: @fmuladd_fabs_x_fabs_x_fast(
 ; CHECK-NEXT:    [[TMP1:%.*]] = fmul fast float [[X:%.*]], [[X]]
@@ -312,6 +344,15 @@
   ret float %fma
 }
 
+define float @fmuladd_k_y_z_contract(float %y, float %z) {
+; CHECK-LABEL: @fmuladd_k_y_z_contract(
+; CHECK-NEXT:    [[FMULADD:%.*]] = call contract float @llvm.fmuladd.f32(float [[Y:%.*]], float 4.000000e+00, float [[Z:%.*]])
+; CHECK-NEXT:    ret float [[FMULADD]]
+;
+  %fmuladd = call contract float @llvm.fmuladd.f32(float 4.0, float %y, float %z)
+  ret float %fmuladd
+}
+
 define float @fmuladd_k_y_z_fast(float %y, float %z) {
 ; CHECK-LABEL: @fmuladd_k_y_z_fast(
 ; CHECK-NEXT:    [[TMP1:%.*]] = fmul fast float [[Y:%.*]], 4.000000e+00
@@ -457,6 +498,15 @@
   ret float %fma
 }
 
+define float @fmuladd_x_1_z_contract(float %x, float %z) {
+; CHECK-LABEL: @fmuladd_x_1_z_contract(
+; CHECK-NEXT:    [[FMULADD:%.*]] = fadd contract float [[X:%.*]], [[Z:%.*]]
+; CHECK-NEXT:    ret float [[FMULADD]]
+;
+  %fmuladd = call contract float @llvm.fmuladd.f32(float %x, float 1.0, float %z)
+  ret float %fmuladd
+}
+
 define float @fmuladd_x_1_z_fast(float %x, float %z) {
 ; CHECK-LABEL: @fmuladd_x_1_z_fast(
 ; CHECK-NEXT:    [[FMULADD:%.*]] = fadd fast float [[X:%.*]], [[Z:%.*]]


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D152165.528438.patch
Type: text/x-patch
Size: 3478 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230605/43e15a24/attachment.bin>