[llvm] [X86] Don't rely on global -fp-contract=fast on X86 CodeGen tests (PR #158026)

[Evgenii Kudriashov via llvm-commits]

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@@ -1876,14 +1876,14 @@ define float @fadd_fma_fmul_2(float %a, float %b, float %c, float %d, float %n0)
 ; AVX512-NEXT:    vfmadd231ss {{.*#+}} xmm2 = (xmm1 * xmm0) + xmm2
 ; AVX512-NEXT:    vaddss %xmm2, %xmm4, %xmm0
 ; AVX512-NEXT:    retq
-  %m1 = fmul float %a, %b
-  %m2 = fmul float %c, %d
-  %a1 = fadd contract float %m1, %m2
-  %a2 = fadd contract float %n0, %a1
+  %m1 = fmul contract float %a, %b
+  %m2 = fmul contract float %c, %d
+  %a1 = fadd contract contract float %m1, %m2
+  %a2 = fadd contract contract float %n0, %a1
   ret float %a2
 }
 
-; The final fadd can be folded with either 1 of the leading fmuls.
+; The final fadd contract can be folded with either 1 of the leading fmul contracts.
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e-kud wrote:

Looks like an unnecessary change.

https://github.com/llvm/llvm-project/pull/158026