The x86 "sitofp i64 to double" dag combine, in 32-bit mode, lowers sitofp
directly to X86ISD::FILD (or FILD_FLAG). This should not be done in soft-float mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252042
91177308-0d34-0410-b5e6-
96231b3b80d8
}
// Transform (SINT_TO_FP (i64 ...)) into an x87 operation if we have
- // a 32-bit target where SSE doesn't support i64->FP operations.
- if (Op0.getOpcode() == ISD::LOAD) {
+ // a 32-bit target where SSE doesn't support i64->FP operations.
+ if (!Subtarget->useSoftFloat() && Op0.getOpcode() == ISD::LOAD) {
LoadSDNode *Ld = cast<LoadSDNode>(Op0.getNode());
EVT LdVT = Ld->getValueType(0);
--- /dev/null
+; RUN: llc < %s | FileCheck %s
+
+target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
+target triple = "i386-pc-linux"
+
+; Function Attrs: nounwind
+; CHECK-LABEL: ll_to_d:
+; CHECK: calll __floatdidf
+define double @ll_to_d(i64 %n) #0 {
+entry:
+ %conv = sitofp i64 %n to double
+ ret double %conv
+}
+
+attributes #0 = { nounwind "use-soft-float"="true" }