[llvm] [LoongArch][NFC] Pre-commit scalarize fp tests for #157824 (PR #160480)
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Sun Sep 28 23:52:14 PDT 2025
https://github.com/zhaoqi5 updated https://github.com/llvm/llvm-project/pull/160480
>From 6b0057d5251a7cae3465ddc25f21468710bc1529 Mon Sep 17 00:00:00 2001
From: Qi Zhao <zhaoqi01 at loongson.cn>
Date: Wed, 24 Sep 2025 17:34:56 +0800
Subject: [PATCH] [LoongArch][NFC] Pre-commit scalarize fp tests and fix for
la32
---
.../CodeGen/LoongArch/lasx/scalarize-fp.ll | 64 +++++++++++++++++++
.../CodeGen/LoongArch/lsx/scalarize-fp.ll | 63 ++++++++++++++++++
2 files changed, 127 insertions(+)
create mode 100644 llvm/test/CodeGen/LoongArch/lasx/scalarize-fp.ll
create mode 100644 llvm/test/CodeGen/LoongArch/lsx/scalarize-fp.ll
diff --git a/llvm/test/CodeGen/LoongArch/lasx/scalarize-fp.ll b/llvm/test/CodeGen/LoongArch/lasx/scalarize-fp.ll
new file mode 100644
index 0000000000000..c93a6582b9c69
--- /dev/null
+++ b/llvm/test/CodeGen/LoongArch/lasx/scalarize-fp.ll
@@ -0,0 +1,64 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
+; RUN: llc --mtriple=loongarch32 -mattr=+32s,+lasx < %s | FileCheck %s
+; RUN: llc --mtriple=loongarch64 -mattr=+lasx < %s | FileCheck %s
+
+define <8 x float> @fadd_elt0_v8f32(float %a) nounwind {
+; CHECK-LABEL: fadd_elt0_v8f32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f0 killed $f0 def $xr0
+; CHECK-NEXT: xvldi $xr1, -1424
+; CHECK-NEXT: xvfadd.s $xr0, $xr0, $xr1
+; CHECK-NEXT: ret
+entry:
+ %b = insertelement <8 x float> poison, float %a, i32 0
+ %c = fadd <8 x float> %b, <float 1.0, float poison, float poison, float poison, float poison, float poison, float poison, float poison>
+ ret <8 x float> %c
+}
+
+define <4 x double> @fadd_elt0_v4f64(double %a) nounwind {
+; CHECK-LABEL: fadd_elt0_v4f64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f0_64 killed $f0_64 def $xr0
+; CHECK-NEXT: xvldi $xr1, -912
+; CHECK-NEXT: xvfadd.d $xr0, $xr0, $xr1
+; CHECK-NEXT: ret
+entry:
+ %b = insertelement <4 x double> poison, double %a, i32 0
+ %c = fadd <4 x double> %b, <double 1.0, double poison, double poison, double poison>
+ ret <4 x double> %c
+}
+
+define <8 x float> @fsub_splat_v8f32(float %a, float %b) nounwind {
+; CHECK-LABEL: fsub_splat_v8f32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f1 killed $f1 def $vr1
+; CHECK-NEXT: # kill: def $f0 killed $f0 def $vr0
+; CHECK-NEXT: vfsub.s $vr0, $vr0, $vr1
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 68
+; CHECK-NEXT: xvrepl128vei.w $xr0, $xr0, 0
+; CHECK-NEXT: ret
+entry:
+ %insa = insertelement <8 x float> poison, float %a, i32 0
+ %insb = insertelement <8 x float> poison, float %b, i32 0
+ %va = shufflevector <8 x float> %insa, <8 x float> poison, <8 x i32> zeroinitializer
+ %vb = shufflevector <8 x float> %insb, <8 x float> poison, <8 x i32> zeroinitializer
+ %c = fsub <8 x float> %va, %vb
+ ret <8 x float> %c
+}
+
+define <4 x double> @fsub_splat_v4f64(double %a) nounwind {
+; CHECK-LABEL: fsub_splat_v4f64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f0_64 killed $f0_64 def $xr0
+; CHECK-NEXT: xvldi $xr1, -784
+; CHECK-NEXT: xvfadd.d $xr0, $xr0, $xr1
+; CHECK-NEXT: xvpermi.d $xr0, $xr0, 0
+; CHECK-NEXT: ret
+entry:
+ %insa = insertelement <4 x double> poison, double %a, i32 0
+ %insb = insertelement <4 x double> poison, double 1.0, i32 0
+ %va = shufflevector <4 x double> %insa, <4 x double> poison, <4 x i32> zeroinitializer
+ %vb = shufflevector <4 x double> %insb, <4 x double> poison, <4 x i32> zeroinitializer
+ %c = fsub <4 x double> %va, %vb
+ ret <4 x double> %c
+}
diff --git a/llvm/test/CodeGen/LoongArch/lsx/scalarize-fp.ll b/llvm/test/CodeGen/LoongArch/lsx/scalarize-fp.ll
new file mode 100644
index 0000000000000..cc2d3d818b412
--- /dev/null
+++ b/llvm/test/CodeGen/LoongArch/lsx/scalarize-fp.ll
@@ -0,0 +1,63 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
+; RUN: llc --mtriple=loongarch32 -mattr=+32s,+lsx < %s | FileCheck %s
+; RUN: llc --mtriple=loongarch64 -mattr=+lsx < %s | FileCheck %s
+
+define <4 x float> @fadd_elt0_v4f32(float %a) nounwind {
+; CHECK-LABEL: fadd_elt0_v4f32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f0 killed $f0 def $vr0
+; CHECK-NEXT: vldi $vr1, -1424
+; CHECK-NEXT: vfadd.s $vr0, $vr0, $vr1
+; CHECK-NEXT: ret
+entry:
+ %b = insertelement <4 x float> poison, float %a, i32 0
+ %c = fadd <4 x float> %b, <float 1.0, float poison, float poison, float poison>
+ ret <4 x float> %c
+}
+
+define <2 x double> @fadd_elt0_v2f64(double %a) nounwind {
+; CHECK-LABEL: fadd_elt0_v2f64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f0_64 killed $f0_64 def $vr0
+; CHECK-NEXT: vldi $vr1, -912
+; CHECK-NEXT: vfadd.d $vr0, $vr0, $vr1
+; CHECK-NEXT: ret
+entry:
+ %b = insertelement <2 x double> poison, double %a, i32 0
+ %c = fadd <2 x double> %b, <double 1.0, double poison>
+ ret <2 x double> %c
+}
+
+define <4 x float> @fsub_splat_v4f32(float %b) nounwind {
+; CHECK-LABEL: fsub_splat_v4f32:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f0 killed $f0 def $vr0
+; CHECK-NEXT: vldi $vr1, -1424
+; CHECK-NEXT: vfsub.s $vr0, $vr1, $vr0
+; CHECK-NEXT: vreplvei.w $vr0, $vr0, 0
+; CHECK-NEXT: ret
+entry:
+ %insa = insertelement <4 x float> poison, float 1.0, i32 0
+ %insb = insertelement <4 x float> poison, float %b, i32 0
+ %va = shufflevector <4 x float> %insa, <4 x float> poison, <4 x i32> zeroinitializer
+ %vb = shufflevector <4 x float> %insb, <4 x float> poison, <4 x i32> zeroinitializer
+ %c = fsub <4 x float> %va, %vb
+ ret <4 x float> %c
+}
+
+define <2 x double> @fsub_splat_v2f64(double %a, double %b) nounwind {
+; CHECK-LABEL: fsub_splat_v2f64:
+; CHECK: # %bb.0: # %entry
+; CHECK-NEXT: # kill: def $f1_64 killed $f1_64 def $vr1
+; CHECK-NEXT: # kill: def $f0_64 killed $f0_64 def $vr0
+; CHECK-NEXT: vfsub.d $vr0, $vr0, $vr1
+; CHECK-NEXT: vreplvei.d $vr0, $vr0, 0
+; CHECK-NEXT: ret
+entry:
+ %insa = insertelement <2 x double> poison, double %a, i32 0
+ %insb = insertelement <2 x double> poison, double %b, i32 0
+ %va = shufflevector <2 x double> %insa, <2 x double> poison, <2 x i32> zeroinitializer
+ %vb = shufflevector <2 x double> %insb, <2 x double> poison, <2 x i32> zeroinitializer
+ %c = fsub <2 x double> %va, %vb
+ ret <2 x double> %c
+}
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