LLVM_DEBUG(dbgs() << "Promote integer operand: "; N->dump(&DAG);
dbgs() << "\n");
SDValue Res = SDValue();
-
if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) {
LLVM_DEBUG(dbgs() << "Node has been custom lowered, done\n");
return false;
if (Res.getNode() == N)
return true;
- assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 &&
+ const bool IsStrictFp = N->isStrictFPOpcode();
+ assert(Res.getValueType() == N->getValueType(0) &&
+ N->getNumValues() == (IsStrictFp ? 2 : 1) &&
"Invalid operand expansion");
+ LLVM_DEBUG(dbgs() << "Replacing: "; N->dump(&DAG); dbgs() << " with: ";
+ Res.dump());
ReplaceValueWith(SDValue(N, 0), Res);
+ if (IsStrictFp)
+ ReplaceValueWith(SDValue(N, 1), SDValue(Res.getNode(), 1));
+
return false;
}
--- /dev/null
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -O0 -o - %s | FileCheck %s
+; RUN: llc -O3 -o - %s | FileCheck %s --check-prefix=SUBOPTIMAL
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64-arm-none-eabi"
+
+declare float @llvm.experimental.constrained.sitofp.f32.i32(i32, metadata, metadata)
+declare float @llvm.experimental.constrained.sitofp.f32.i16(i16, metadata, metadata)
+declare i1 @llvm.experimental.constrained.fcmp.f32(float, float, metadata, metadata)
+declare float @llvm.experimental.constrained.uitofp.f32.i16(i16, metadata, metadata)
+
+define i32 @test() #0 {
+; CHECK-LABEL: test:
+; CHECK: // %bb.0: // %entry
+; CHECK-NEXT: mov w8, #1
+; CHECK-NEXT: scvtf s0, w8
+; CHECK-NEXT: fcmp s0, s0
+; CHECK-NEXT: cset w0, eq
+; CHECK-NEXT: ret
+;
+; SUBOPTIMAL-LABEL: test:
+; SUBOPTIMAL: // %bb.0: // %entry
+; SUBOPTIMAL-NEXT: mov w8, #1
+; SUBOPTIMAL-NEXT: scvtf s0, w8
+; SUBOPTIMAL-NEXT: mov w8, #1
+; SUBOPTIMAL-NEXT: scvtf s1, w8
+; SUBOPTIMAL-NEXT: fcmp s0, s1
+; SUBOPTIMAL-NEXT: cset w8, eq
+; SUBOPTIMAL-NEXT: and w0, w8, #0x1
+; SUBOPTIMAL-NEXT: ret
+entry:
+ %conv = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 1, metadata !"round.tonearest", metadata !"fpexcept.strict")
+ %conv1 = call float @llvm.experimental.constrained.sitofp.f32.i16(i16 1, metadata !"round.tonearest", metadata !"fpexcept.strict")
+ %cmp = call i1 @llvm.experimental.constrained.fcmp.f32(float %conv, float %conv1, metadata !"oeq", metadata !"fpexcept.strict")
+ %conv2 = zext i1 %cmp to i32
+ ret i32 %conv2
+}
+
+define i32 @test2() #0 {
+; CHECK-LABEL: test2:
+; CHECK: // %bb.0: // %entry
+; CHECK-NEXT: mov w8, #1
+; CHECK-NEXT: scvtf s0, w8
+; CHECK-NEXT: ucvtf s1, w8
+; CHECK-NEXT: fcmp s0, s1
+; CHECK-NEXT: cset w0, eq
+; CHECK-NEXT: ret
+;
+; SUBOPTIMAL-LABEL: test2:
+; SUBOPTIMAL: // %bb.0: // %entry
+; SUBOPTIMAL-NEXT: mov w8, #1
+; SUBOPTIMAL-NEXT: scvtf s0, w8
+; SUBOPTIMAL-NEXT: mov w8, #1
+; SUBOPTIMAL-NEXT: ucvtf s1, w8
+; SUBOPTIMAL-NEXT: fcmp s0, s1
+; SUBOPTIMAL-NEXT: cset w8, eq
+; SUBOPTIMAL-NEXT: and w0, w8, #0x1
+; SUBOPTIMAL-NEXT: ret
+entry:
+ %conv = call float @llvm.experimental.constrained.sitofp.f32.i32(i32 1, metadata !"round.tonearest", metadata !"fpexcept.strict")
+ %conv1 = call float @llvm.experimental.constrained.uitofp.f32.i16(i16 1, metadata !"round.tonearest", metadata !"fpexcept.strict")
+ %cmp = call i1 @llvm.experimental.constrained.fcmp.f32(float %conv, float %conv1, metadata !"oeq", metadata !"fpexcept.strict")
+ %conv2 = zext i1 %cmp to i32
+ ret i32 %conv2
+}
+
+attributes #0 = { noinline optnone }