[llvm] [RISCV] Fix the float value to test constantpool lowering under differe… (PR #67297)

[Jim Lin via llvm-commits]

https://github.com/tclin914 created https://github.com/llvm/llvm-project/pull/67297

After https://reviews.llvm.org/D142953, the float value 1.0 can be optimized as lui+fmv.w.x. But this test aims to test the constantpool lowering under different code model. Fix the float value to cannot be optimized to lui+fmv.w.x .

>From df27117350fe1c99ca3e56701a2001aca525279f Mon Sep 17 00:00:00 2001
From: Jim Lin <jim at andestech.com>
Date: Mon, 25 Sep 2023 16:45:34 +0800
Subject: [PATCH] [RISCV] Fix the float value to test constantpool lowering
 under different code model.

After https://reviews.llvm.org/D142953, the float value 1.0 can be optimized as lui+fmv.w.x.
But this test aims to test the constantpool lowering under different code model. Fix the float
value to cannot be optimized to lui+fmv.w.x .
---
 llvm/test/CodeGen/RISCV/codemodel-lowering.ll | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/llvm/test/CodeGen/RISCV/codemodel-lowering.ll b/llvm/test/CodeGen/RISCV/codemodel-lowering.ll
index 1a88a253a8e596e..617155b31976187 100644
--- a/llvm/test/CodeGen/RISCV/codemodel-lowering.ll
+++ b/llvm/test/CodeGen/RISCV/codemodel-lowering.ll
@@ -124,18 +124,19 @@ indirectgoto:
 define float @lower_constantpool(float %a) nounwind {
 ; RV32I-SMALL-LABEL: lower_constantpool:
 ; RV32I-SMALL:       # %bb.0:
-; RV32I-SMALL-NEXT:    lui a0, 260096
-; RV32I-SMALL-NEXT:    fmv.w.x fa5, a0
+; RV32I-SMALL-NEXT:    lui a0, %hi(.LCPI3_0)
+; RV32I-SMALL-NEXT:    flw fa5, %lo(.LCPI3_0)(a0)
 ; RV32I-SMALL-NEXT:    fadd.s fa0, fa0, fa5
 ; RV32I-SMALL-NEXT:    ret
 ;
 ; RV32I-MEDIUM-LABEL: lower_constantpool:
 ; RV32I-MEDIUM:       # %bb.0:
-; RV32I-MEDIUM-NEXT:    lui a0, 260096
-; RV32I-MEDIUM-NEXT:    fmv.w.x fa5, a0
+; RV32I-MEDIUM-NEXT:  .Lpcrel_hi3:
+; RV32I-MEDIUM-NEXT:    auipc a0, %pcrel_hi(.LCPI3_0)
+; RV32I-MEDIUM-NEXT:    flw fa5, %pcrel_lo(.Lpcrel_hi3)(a0)
 ; RV32I-MEDIUM-NEXT:    fadd.s fa0, fa0, fa5
 ; RV32I-MEDIUM-NEXT:    ret
-  %1 = fadd float %a, 1.0
+  %1 = fadd float %a, 1.000244140625
   ret float %1
 }
 
@@ -151,9 +152,9 @@ define i32 @lower_extern_weak(i32 %a) nounwind {
 ;
 ; RV32I-MEDIUM-LABEL: lower_extern_weak:
 ; RV32I-MEDIUM:       # %bb.0:
-; RV32I-MEDIUM-NEXT:  .Lpcrel_hi3:
+; RV32I-MEDIUM-NEXT:  .Lpcrel_hi4:
 ; RV32I-MEDIUM-NEXT:    auipc a0, %got_pcrel_hi(W)
-; RV32I-MEDIUM-NEXT:    lw a0, %pcrel_lo(.Lpcrel_hi3)(a0)
+; RV32I-MEDIUM-NEXT:    lw a0, %pcrel_lo(.Lpcrel_hi4)(a0)
 ; RV32I-MEDIUM-NEXT:    lw a0, 0(a0)
 ; RV32I-MEDIUM-NEXT:    ret
   %1 = load volatile i32, ptr @W