[llvm-bugs] [Bug 38819] New: [X86] Crash compiling sitofp with sse1, no-x87, and 32-bit mode

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=38819

            Bug ID: 38819
           Summary: [X86] Crash compiling sitofp with sse1, no-x87, and
                    32-bit mode
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: craig.topper at gmail.com
                CC: llvm-bugs at lists.llvm.org

This IR crashes with llc test.ll -mattr=+sse,-sse2,-x87 -mtriple=i686

define void @foo(i64 %x, float* nocapture %b) local_unnamed_addr #0 {
entry:
  %conv = sitofp i64 %x to float
  store float %conv, float* %b, align 4
  ret void
}


Error:

SoftenFloatResult #0: t16: f64,ch,glue = X86ISD::FILD_FLAG<(load 8 from
%fixed-stack.2, align 4)> t0, FrameIndex:i32<-1>, ValueType:ch:i64

Do not know how to soften the result of this operator!
UNREACHABLE executed at
/Users/craig/Development/clang/llvm/lib/CodeGen/SelectionDAG/LegalizeFloatTypes.cpp:60!

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