From 1ce5f93d03c24ad780f099eccc2dc768e9e9e30f Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Sun, 16 Oct 2022 22:26:13 -0700
Subject: [PATCH] InstSimplify: Add new baseline tests for fdiv

---
 llvm/test/Transforms/InstSimplify/fdiv.ll | 99 +++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)

diff --git a/llvm/test/Transforms/InstSimplify/fdiv.ll b/llvm/test/Transforms/InstSimplify/fdiv.ll
index 2b998b3..2b583a0 100644
--- a/llvm/test/Transforms/InstSimplify/fdiv.ll
+++ b/llvm/test/Transforms/InstSimplify/fdiv.ll
@@ -59,3 +59,102 @@ define <2 x i1> @pr6096() {
   %fcmp = fcmp ole <2 x float> %fdiv, zeroinitializer
   ret <2 x i1> %fcmp
 }
+
+
+; https://alive2.llvm.org/ce/z/JxX5in
+define float @fdiv_nnan_ninf_by_zero_f32(float %x) {
+; CHECK-LABEL: @fdiv_nnan_ninf_by_zero_f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan ninf float [[X:%.*]], 0.000000e+00
+; CHECK-NEXT:    ret float [[FDIV]]
+;
+  %fdiv = fdiv nnan ninf float %x, 0.0
+  ret float %fdiv
+}
+
+define float @fdiv_nnan_ninf_by_negzero_f32(float %x) {
+; CHECK-LABEL: @fdiv_nnan_ninf_by_negzero_f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan ninf float [[X:%.*]], -0.000000e+00
+; CHECK-NEXT:    ret float [[FDIV]]
+;
+  %fdiv = fdiv nnan ninf float %x, -0.0
+  ret float %fdiv
+}
+
+define float @fdiv_nnan_ninf_by_undef_f32(float %x) {
+; CHECK-LABEL: @fdiv_nnan_ninf_by_undef_f32(
+; CHECK-NEXT:    ret float poison
+;
+  %fdiv = fdiv nnan ninf float %x, undef
+  ret float %fdiv
+}
+
+define float @fdiv_nnan_ninf_by_poison_f32(float %x) {
+; CHECK-LABEL: @fdiv_nnan_ninf_by_poison_f32(
+; CHECK-NEXT:    ret float poison
+;
+  %fdiv = fdiv nnan ninf float %x, poison
+  ret float %fdiv
+}
+
+define <2 x float> @fdiv_nnan_ninf_by_zero_v2f32(<2 x float> %x) {
+; CHECK-LABEL: @fdiv_nnan_ninf_by_zero_v2f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan ninf <2 x float> [[X:%.*]], zeroinitializer
+; CHECK-NEXT:    ret <2 x float> [[FDIV]]
+;
+  %fdiv = fdiv nnan ninf <2 x float> %x, zeroinitializer
+  ret <2 x float> %fdiv
+}
+
+define <2 x float> @fdiv_nnan_ninf_by_undef_v2f32(<2 x float> %x) {
+; CHECK-LABEL: @fdiv_nnan_ninf_by_undef_v2f32(
+; CHECK-NEXT:    ret <2 x float> poison
+;
+  %fdiv = fdiv nnan ninf <2 x float> %x, undef
+  ret <2 x float> %fdiv
+}
+
+define <2 x float> @fdiv_nnan_ninf_by_zero_undef_v2f32(<2 x float> %x) {
+; CHECK-LABEL: @fdiv_nnan_ninf_by_zero_undef_v2f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan ninf <2 x float> [[X:%.*]], <float 0.000000e+00, float undef>
+; CHECK-NEXT:    ret <2 x float> [[FDIV]]
+;
+  %fdiv = fdiv nnan ninf <2 x float> %x, <float 0.0, float undef>
+  ret <2 x float> %fdiv
+}
+
+; https://alive2.llvm.org/ce/z/wRV28p
+define float @fdiv_nnan_nsz_ninf_by_zero_f32(float %x) {
+; CHECK-LABEL: @fdiv_nnan_nsz_ninf_by_zero_f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan nsz float [[X:%.*]], 0.000000e+00
+; CHECK-NEXT:    ret float [[FDIV]]
+;
+  %fdiv = fdiv nnan nsz float %x, 0.0
+  ret float %fdiv
+}
+
+define float @fdiv_nnan_nsz_ninf_by_negzero_f32(float %x) {
+; CHECK-LABEL: @fdiv_nnan_nsz_ninf_by_negzero_f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan nsz float [[X:%.*]], -0.000000e+00
+; CHECK-NEXT:    ret float [[FDIV]]
+;
+  %fdiv = fdiv nnan nsz float %x, -0.0
+  ret float %fdiv
+}
+
+define <2 x float> @fdiv_nnan_nsz_ninf_by_zero_v2f32(<2 x float> %x) {
+; CHECK-LABEL: @fdiv_nnan_nsz_ninf_by_zero_v2f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan nsz <2 x float> [[X:%.*]], zeroinitializer
+; CHECK-NEXT:    ret <2 x float> [[FDIV]]
+;
+  %fdiv = fdiv nnan nsz <2 x float> %x, zeroinitializer
+  ret <2 x float> %fdiv
+}
+
+define <2 x float> @fdiv_nnan_nsz_ninf_by_negzero_v2f32(<2 x float> %x) {
+; CHECK-LABEL: @fdiv_nnan_nsz_ninf_by_negzero_v2f32(
+; CHECK-NEXT:    [[FDIV:%.*]] = fdiv nnan nsz <2 x float> [[X:%.*]], <float -0.000000e+00, float -0.000000e+00>
+; CHECK-NEXT:    ret <2 x float> [[FDIV]]
+;
+  %fdiv = fdiv nnan nsz <2 x float> %x, <float -0.0, float -0.0>
+  ret <2 x float> %fdiv
+}
-- 
2.7.4