[llvm] [PowerPC] Fix incorrect symbol name of frexp libcall (PR #71626)

[Qiu Chaofan via llvm-commits]

https://github.com/ecnelises created https://github.com/llvm/llvm-project/pull/71626

frexpl is for ppc_fp128. The correct symbol name for f128 is frexpf128.

>From d68fcfe92ed606661ae597dbeaef0b11f2a0e5d3 Mon Sep 17 00:00:00 2001
From: Qiu Chaofan <qiucofan at cn.ibm.com>
Date: Wed, 8 Nov 2023 11:28:55 +0800
Subject: [PATCH] [PowerPC] Fix incorrect symbol name of frexp libcall

frexpl is for ppc_fp128. The correct symbol name for f128 is frexpf128.
---
 llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 1 +
 llvm/test/CodeGen/PowerPC/f128-arith.ll     | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 07e6ee97b4ee047..1c6460f8149b4b3 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -1427,6 +1427,7 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM,
   setLibcallName(RTLIB::LLRINT_F128, "llrintf128");
   setLibcallName(RTLIB::NEARBYINT_F128, "nearbyintf128");
   setLibcallName(RTLIB::FMA_F128, "fmaf128");
+  setLibcallName(RTLIB::FREXP_F128, "frexpf128");
 
   if (Subtarget.isAIXABI()) {
     setLibcallName(RTLIB::MEMCPY, isPPC64 ? "___memmove64" : "___memmove");
diff --git a/llvm/test/CodeGen/PowerPC/f128-arith.ll b/llvm/test/CodeGen/PowerPC/f128-arith.ll
index 829db926b1704b0..18c0f25ed10e849 100644
--- a/llvm/test/CodeGen/PowerPC/f128-arith.ll
+++ b/llvm/test/CodeGen/PowerPC/f128-arith.ll
@@ -1320,7 +1320,7 @@ define dso_local fp128 @qpFREXP(ptr %a, ptr %b) {
 ; CHECK-NEXT:    addi r5, r1, 44
 ; CHECK-NEXT:    mr r30, r4
 ; CHECK-NEXT:    lxv v2, 0(r3)
-; CHECK-NEXT:    bl frexpl
+; CHECK-NEXT:    bl frexpf128
 ; CHECK-NEXT:    nop
 ; CHECK-NEXT:    lwz r3, 44(r1)
 ; CHECK-NEXT:    stw r3, 0(r30)
@@ -1343,7 +1343,7 @@ define dso_local fp128 @qpFREXP(ptr %a, ptr %b) {
 ; CHECK-P8-NEXT:    mr r30, r4
 ; CHECK-P8-NEXT:    lxvd2x vs0, 0, r3
 ; CHECK-P8-NEXT:    xxswapd v2, vs0
-; CHECK-P8-NEXT:    bl frexpl
+; CHECK-P8-NEXT:    bl frexpf128
 ; CHECK-P8-NEXT:    nop
 ; CHECK-P8-NEXT:    lwz r3, 44(r1)
 ; CHECK-P8-NEXT:    stw r3, 0(r30)