[llvm] [SDAG] Remove most non-canonical libcall handing (PR #171288)

[Ulrich Weigand via llvm-commits]

================
@@ -2,33 +2,21 @@
 ;
 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
 
-declare double @fmax(double, double)
 declare double @llvm.maxnum.f64(double, double)
 declare <2 x double> @llvm.maxnum.v2f64(<2 x double>, <2 x double>)
 declare double @llvm.maximum.f64(double, double)
 declare <2 x double> @llvm.maximum.v2f64(<2 x double>, <2 x double>)
 
-declare float @fmaxf(float, float)
 declare float @llvm.maxnum.f32(float, float)
 declare <4 x float> @llvm.maxnum.v4f32(<4 x float>, <4 x float>)
 declare float @llvm.maximum.f32(float, float)
 declare <4 x float> @llvm.maximum.v4f32(<4 x float>, <4 x float>)
 
 declare half @llvm.maxnum.f16(half, half)
 
-declare fp128 @fmaxl(fp128, fp128)
 declare fp128 @llvm.maxnum.f128(fp128, fp128)
 declare fp128 @llvm.maximum.f128(fp128, fp128)
 
-; Test the fmax library function.
-define double @f1(double %dummy, double %val1, double %val2) {
----------------
uweigand wrote:

Ok, got it now, thanks!  That seem fine to me.

https://github.com/llvm/llvm-project/pull/171288