[llvm-branch-commits] [llvm] InstCombine: Add baseline fma tests for SimplifyDemandedFPClass (PR #175615)
Matt Arsenault via llvm-branch-commits
llvm-branch-commits at lists.llvm.org
Wed Jan 14 11:24:18 PST 2026
https://github.com/arsenm updated https://github.com/llvm/llvm-project/pull/175615
>From 657e09c998cdffe17748cc2b0121a33825243136 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault at amd.com>
Date: Mon, 12 Jan 2026 15:00:04 +0100
Subject: [PATCH] InstCombine: Add baseline fma tests for
SimplifyDemandedFPClass
---
.../simplify-demanded-fpclass-fma.ll | 316 ++++++++++++++++++
1 file changed, 316 insertions(+)
create mode 100644 llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-fma.ll
diff --git a/llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-fma.ll b/llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-fma.ll
new file mode 100644
index 0000000000000..3309a475bbf80
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/simplify-demanded-fpclass-fma.ll
@@ -0,0 +1,316 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
+; RUN: opt -S -passes=instcombine < %s | FileCheck %s
+
+declare nofpclass(inf norm sub zero) half @returns_nan()
+
+define nofpclass(inf norm sub zero) half @ret_only_nan(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(inf zero sub norm) half @ret_only_nan(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(inf norm sub zero) <2 x half> @ret_only_nan_vec(<2 x half> %x, <2 x half> %y, <2 x half> %z) {
+; CHECK-LABEL: define nofpclass(inf zero sub norm) <2 x half> @ret_only_nan_vec(
+; CHECK-SAME: <2 x half> [[X:%.*]], <2 x half> [[Y:%.*]], <2 x half> [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call <2 x half> @llvm.fma.v2f16(<2 x half> [[X]], <2 x half> [[Y]], <2 x half> [[Z]])
+; CHECK-NEXT: ret <2 x half> [[RESULT]]
+;
+ %result = call <2 x half> @llvm.fma.v2f16(<2 x half> %x, <2 x half> %y, <2 x half> %z)
+ ret <2 x half> %result
+}
+
+define nofpclass(inf norm sub zero qnan) half @ret_only_snan(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(qnan inf zero sub norm) half @ret_only_snan(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(inf norm sub zero snan) half @ret_only_qnan(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(snan inf zero sub norm) half @ret_only_qnan(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(nan norm sub zero) half @ret_only_inf(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan zero sub norm) half @ret_only_inf(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(nan pinf norm sub zero) half @ret_only_ninf(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan pinf zero sub norm) half @ret_only_ninf(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: ret half 0xHFC00
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(nan ninf norm sub zero) half @ret_only_pinf(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan ninf zero sub norm) half @ret_only_pinf(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: ret half 0xH7C00
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(inf nan norm sub) half @ret_only_zero(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan inf sub norm) half @ret_only_zero(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(inf nan norm sub nzero) half @ret_only_pzero(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan inf nzero sub norm) half @ret_only_pzero(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: ret half 0xH0000
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(inf nan norm sub pzero) half @ret_only_nzero(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan inf pzero sub norm) half @ret_only_nzero(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: ret half 0xH8000
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_no_nans(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_no_nans(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(inf) half @ret_no_infs(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(inf) half @ret_no_infs(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(nan inf) half @ret_no_nans_no_infs(half %x, half %y, half %z) {
+; CHECK-LABEL: define nofpclass(nan inf) half @ret_no_nans_no_infs(
+; CHECK-SAME: half [[X:%.*]], half [[Y:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[Y]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %y, half %z)
+ ret half %result
+}
+
+define nofpclass(inf norm sub zero) half @ret_only_nan__square(half noundef %x, half %z) {
+; CHECK-LABEL: define nofpclass(inf zero sub norm) half @ret_only_nan__square(
+; CHECK-SAME: half noundef [[X:%.*]], half [[Z:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[X]], half [[X]], half [[Z]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call half @llvm.fma.f16(half %x, half %x, half %z)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__select_nan_or_unknown_src0(i1 %cond, half %unknown0, half %unknown1, half %unknown2) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__select_nan_or_unknown_src0(
+; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN0:%.*]], half [[UNKNOWN1:%.*]], half [[UNKNOWN2:%.*]]) {
+; CHECK-NEXT: [[NAN:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN:%.*]] = select i1 [[COND]], half [[NAN]], half [[UNKNOWN0]]
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[NAN_OR_UNKNOWN]], half [[UNKNOWN1]], half [[UNKNOWN2]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %nan = call half @returns_nan()
+ %nan.or.unknown = select i1 %cond, half %nan, half %unknown0
+ %result = call half @llvm.fma.f16(half %nan.or.unknown, half %unknown1, half %unknown2)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__select_nan_or_unknown_src1(i1 %cond, half %unknown0, half %unknown1, half %unknown2) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__select_nan_or_unknown_src1(
+; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN0:%.*]], half [[UNKNOWN1:%.*]], half [[UNKNOWN2:%.*]]) {
+; CHECK-NEXT: [[NAN:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN:%.*]] = select i1 [[COND]], half [[NAN]], half [[UNKNOWN1]]
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[UNKNOWN0]], half [[NAN_OR_UNKNOWN]], half [[UNKNOWN2]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %nan = call half @returns_nan()
+ %nan.or.unknown = select i1 %cond, half %nan, half %unknown1
+ %result = call half @llvm.fma.f16(half %unknown0, half %nan.or.unknown, half %unknown2)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__select_nan_or_unknown_src2(i1 %cond, half %unknown0, half %unknown1, half %unknown2) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__select_nan_or_unknown_src2(
+; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN0:%.*]], half [[UNKNOWN1:%.*]], half [[UNKNOWN2:%.*]]) {
+; CHECK-NEXT: [[NAN:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN:%.*]] = select i1 [[COND]], half [[NAN]], half [[UNKNOWN2]]
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[UNKNOWN0]], half [[UNKNOWN1]], half [[NAN_OR_UNKNOWN]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %nan = call half @returns_nan()
+ %nan.or.unknown = select i1 %cond, half %nan, half %unknown2
+ %result = call half @llvm.fma.f16(half %unknown0, half %unknown1, half %nan.or.unknown)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__fma__select_nan_or_unknown_all_src(i1 %cond, half %unknown0, half %unknown1, half %unknown2) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__fma__select_nan_or_unknown_all_src(
+; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN0:%.*]], half [[UNKNOWN1:%.*]], half [[UNKNOWN2:%.*]]) {
+; CHECK-NEXT: [[NAN0:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN0:%.*]] = select i1 [[COND]], half [[NAN0]], half [[UNKNOWN0]]
+; CHECK-NEXT: [[NAN1:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN1:%.*]] = select i1 [[COND]], half [[NAN1]], half [[UNKNOWN1]]
+; CHECK-NEXT: [[NAN2:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN2:%.*]] = select i1 [[COND]], half [[NAN2]], half [[UNKNOWN2]]
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fma.f16(half [[NAN_OR_UNKNOWN0]], half [[NAN_OR_UNKNOWN1]], half [[NAN_OR_UNKNOWN2]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %nan0 = call half @returns_nan()
+ %nan.or.unknown0 = select i1 %cond, half %nan0, half %unknown0
+ %nan1 = call half @returns_nan()
+ %nan.or.unknown1 = select i1 %cond, half %nan1, half %unknown1
+ %nan2 = call half @returns_nan()
+ %nan.or.unknown2 = select i1 %cond, half %nan2, half %unknown2
+ %result = call half @llvm.fma.f16(half %nan.or.unknown0, half %nan.or.unknown1, half %nan.or.unknown2)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__fmuladd__select_nan_or_unknown_all_src(i1 %cond, half %unknown0, half %unknown1, half %unknown2) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__fmuladd__select_nan_or_unknown_all_src(
+; CHECK-SAME: i1 [[COND:%.*]], half [[UNKNOWN0:%.*]], half [[UNKNOWN1:%.*]], half [[UNKNOWN2:%.*]]) {
+; CHECK-NEXT: [[NAN0:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN0:%.*]] = select i1 [[COND]], half [[NAN0]], half [[UNKNOWN0]]
+; CHECK-NEXT: [[NAN1:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN1:%.*]] = select i1 [[COND]], half [[NAN1]], half [[UNKNOWN1]]
+; CHECK-NEXT: [[NAN2:%.*]] = call half @returns_nan()
+; CHECK-NEXT: [[NAN_OR_UNKNOWN2:%.*]] = select i1 [[COND]], half [[NAN2]], half [[UNKNOWN2]]
+; CHECK-NEXT: [[RESULT:%.*]] = call half @llvm.fmuladd.f16(half [[NAN_OR_UNKNOWN0]], half [[NAN_OR_UNKNOWN1]], half [[NAN_OR_UNKNOWN2]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %nan0 = call half @returns_nan()
+ %nan.or.unknown0 = select i1 %cond, half %nan0, half %unknown0
+ %nan1 = call half @returns_nan()
+ %nan.or.unknown1 = select i1 %cond, half %nan1, half %unknown1
+ %nan2 = call half @returns_nan()
+ %nan.or.unknown2 = select i1 %cond, half %nan2, half %unknown2
+ %result = call half @llvm.fmuladd.f16(half %nan.or.unknown0, half %nan.or.unknown1, half %nan.or.unknown2)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__fmuladd__no_nan_all_src(i1 %cond, half nofpclass(nan) %not.nan0, half nofpclass(nan) %not.nan1, half nofpclass(nan) %not.nan2) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__fmuladd__no_nan_all_src(
+; CHECK-SAME: i1 [[COND:%.*]], half nofpclass(nan) [[NOT_NAN0:%.*]], half nofpclass(nan) [[NOT_NAN1:%.*]], half nofpclass(nan) [[NOT_NAN2:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call nsz half @llvm.fmuladd.f16(half [[NOT_NAN0]], half [[NOT_NAN1]], half [[NOT_NAN2]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call nsz half @llvm.fmuladd.f16(half %not.nan0, half %not.nan1, half %not.nan2)
+ ret half %result
+}
+
+define nofpclass(inf) half @ret_noinf__fmuladd__no_inf_all_src(i1 %cond, half nofpclass(inf) %not.inf0, half nofpclass(inf) %not.inf1, half nofpclass(inf) %not.inf2) {
+; CHECK-LABEL: define nofpclass(inf) half @ret_noinf__fmuladd__no_inf_all_src(
+; CHECK-SAME: i1 [[COND:%.*]], half nofpclass(inf) [[NOT_INF0:%.*]], half nofpclass(inf) [[NOT_INF1:%.*]], half nofpclass(inf) [[NOT_INF2:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call nsz half @llvm.fmuladd.f16(half [[NOT_INF0]], half [[NOT_INF1]], half [[NOT_INF2]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call nsz half @llvm.fmuladd.f16(half %not.inf0, half %not.inf1, half %not.inf2)
+ ret half %result
+}
+
+define nofpclass(nan inf) half @ret_noinf_nonan__fmuladd__no_inf_all_src(i1 %cond, half nofpclass(nan inf) %not.nan.or.inf0, half nofpclass(nan inf) %not.nan.or.inf1, half nofpclass(nan inf) %not.nan.or.inf2) {
+; CHECK-LABEL: define nofpclass(nan inf) half @ret_noinf_nonan__fmuladd__no_inf_all_src(
+; CHECK-SAME: i1 [[COND:%.*]], half nofpclass(nan inf) [[NOT_NAN_OR_INF0:%.*]], half nofpclass(nan inf) [[NOT_NAN_OR_INF1:%.*]], half nofpclass(nan inf) [[NOT_NAN_OR_INF2:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call nsz half @llvm.fmuladd.f16(half [[NOT_NAN_OR_INF0]], half [[NOT_NAN_OR_INF1]], half [[NOT_NAN_OR_INF2]])
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call nsz half @llvm.fmuladd.f16(half %not.nan.or.inf0, half %not.nan.or.inf1, half %not.nan.or.inf2)
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__fmuladd__no_nan_all_src__drop_ub_attrs_md(i1 %cond, half nofpclass(nan) %not.nan0, half nofpclass(nan) %not.nan1, half nofpclass(nan) %not.nan2) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__fmuladd__no_nan_all_src__drop_ub_attrs_md(
+; CHECK-SAME: i1 [[COND:%.*]], half nofpclass(nan) [[NOT_NAN0:%.*]], half nofpclass(nan) [[NOT_NAN1:%.*]], half nofpclass(nan) [[NOT_NAN2:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call noundef half @llvm.fmuladd.f16(half [[NOT_NAN0]], half [[NOT_NAN1]], half noundef [[NOT_NAN2]]), !noundef [[META0:![0-9]+]], !unknown.md [[META0]]
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call noundef half @llvm.fmuladd.f16(half %not.nan0, half %not.nan1, half noundef %not.nan2), !unknown.md !0, !noundef !0
+ ret half %result
+}
+
+define nofpclass(nan inf) half @ret_noinf_nonan__fmuladd__no_inf_all_src__drop_ub_attrs_md(half nofpclass(nan inf) %not.nan.or.inf0, half nofpclass(nan inf) %not.nan.or.inf1, half nofpclass(nan inf) %not.nan.or.inf2) {
+; CHECK-LABEL: define nofpclass(nan inf) half @ret_noinf_nonan__fmuladd__no_inf_all_src__drop_ub_attrs_md(
+; CHECK-SAME: half nofpclass(nan inf) [[NOT_NAN_OR_INF0:%.*]], half nofpclass(nan inf) [[NOT_NAN_OR_INF1:%.*]], half nofpclass(nan inf) [[NOT_NAN_OR_INF2:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call noundef half @llvm.fmuladd.f16(half [[NOT_NAN_OR_INF0]], half [[NOT_NAN_OR_INF1]], half [[NOT_NAN_OR_INF2]]), !noundef [[META0]], !unknown.md [[META0]]
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call noundef half @llvm.fmuladd.f16(half %not.nan.or.inf0, half %not.nan.or.inf1, half %not.nan.or.inf2), !unknown.md !0, !noundef !0
+ ret half %result
+}
+
+define nofpclass(nan) half @ret_nonan__fma_square__no_nan_all_src(half nofpclass(nan) %not.nan0, half nofpclass(nan) %not.nan1) {
+; CHECK-LABEL: define nofpclass(nan) half @ret_nonan__fma_square__no_nan_all_src(
+; CHECK-SAME: half nofpclass(nan) [[NOT_NAN0:%.*]], half nofpclass(nan) [[NOT_NAN1:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call noundef half @llvm.fma.f16(half [[NOT_NAN0]], half [[NOT_NAN0]], half [[NOT_NAN1]]), !noundef [[META0]], !unknown.md [[META0]]
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call noundef half @llvm.fma.f16(half %not.nan0, half %not.nan0, half %not.nan1), !unknown.md !0, !noundef !0
+ ret half %result
+}
+
+define nofpclass(inf) half @ret_noinf__fma_square__no_inf_all_src(half nofpclass(inf) %not.nan0, half nofpclass(inf) %not.nan1) {
+; CHECK-LABEL: define nofpclass(inf) half @ret_noinf__fma_square__no_inf_all_src(
+; CHECK-SAME: half nofpclass(inf) [[NOT_NAN0:%.*]], half nofpclass(inf) [[NOT_NAN1:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call noundef half @llvm.fma.f16(half [[NOT_NAN0]], half [[NOT_NAN0]], half [[NOT_NAN1]]), !noundef [[META0]], !unknown.md [[META0]]
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call noundef half @llvm.fma.f16(half %not.nan0, half %not.nan0, half %not.nan1), !unknown.md !0, !noundef !0
+ ret half %result
+}
+
+define nofpclass(nan inf) half @ret_nonan_noinf__fma_square__no_nan_no_inf_all_src(half nofpclass(nan inf) %not.nan0, half nofpclass(nan inf) %not.nan1) {
+; CHECK-LABEL: define nofpclass(nan inf) half @ret_nonan_noinf__fma_square__no_nan_no_inf_all_src(
+; CHECK-SAME: half nofpclass(nan inf) [[NOT_NAN0:%.*]], half nofpclass(nan inf) [[NOT_NAN1:%.*]]) {
+; CHECK-NEXT: [[RESULT:%.*]] = call nsz noundef half @llvm.fma.f16(half [[NOT_NAN0]], half [[NOT_NAN0]], half [[NOT_NAN1]]), !noundef [[META0]], !unknown.md [[META0]]
+; CHECK-NEXT: ret half [[RESULT]]
+;
+ %result = call nsz noundef half @llvm.fma.f16(half %not.nan0, half %not.nan0, half %not.nan1), !unknown.md !0, !noundef !0
+ ret half %result
+}
+
+
+!0 = !{}
+
+
+
+
+;.
+; CHECK: [[META0]] = !{}
+;.
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