[clang] [llvm] [X86] Fix x87 excess precision escaping into f32/f64 values (PR #215104)

[Jacob Lifshay via cfe-commits]

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@@ -258,6 +270,8 @@ define <2 x i16> @uitofp_signbit_only_fail_bad_width2(i32 %i_in) nounwind {
 ; X86-NEXT:    movl %eax, {{[0-9]+}}(%esp)
 ; X86-NEXT:    movl $0, {{[0-9]+}}(%esp)
 ; X86-NEXT:    fildll {{[0-9]+}}(%esp)
+; X86-NEXT:    fstps (%esp)
+; X86-NEXT:    flds (%esp)
 ; X86-NEXT:    fstps {{[0-9]+}}(%esp)
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programmerjake wrote:

a store, load, store sequence is redundant, it can just be a single store

https://github.com/llvm/llvm-project/pull/215104