if (SExt->getType() != ConsideredSExtType)
return false;
- for (const Use &U : SExt->uses()) {
- if (isa<GetElementPtrInst>(*U))
+ for (const User *U : SExt->users()) {
+ if (isa<GetElementPtrInst>(U))
return true;
}
bool insert = false;
// #1.
- for (const Use &U : SExt->uses()) {
+ for (const User *U : SExt->users()) {
const Instruction *Inst = dyn_cast<GetElementPtrInst>(U);
if (Inst && Inst->getNumOperands() > 2) {
DEBUG(dbgs() << "Interesting use in GetElementPtrInst\n" << *Inst
--- /dev/null
+; RUN: llc < %s -o - | FileCheck %s
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32:64"
+target triple = "arm64-apple-macosx10.9"
+
+; Check that sexts get promoted above adds.
+define void @foo(i32* nocapture %a, i32 %i) {
+entry:
+; CHECK-LABEL: _foo:
+; CHECK: add
+; CHECK-NEXT: ldp
+; CHECK-NEXT: add
+; CHECK-NEXT: str
+; CHECK-NEXT: ret
+ %add = add nsw i32 %i, 1
+ %idxprom = sext i32 %add to i64
+ %arrayidx = getelementptr inbounds i32* %a, i64 %idxprom
+ %0 = load i32* %arrayidx, align 4
+ %add1 = add nsw i32 %i, 2
+ %idxprom2 = sext i32 %add1 to i64
+ %arrayidx3 = getelementptr inbounds i32* %a, i64 %idxprom2
+ %1 = load i32* %arrayidx3, align 4
+ %add4 = add nsw i32 %1, %0
+ %idxprom5 = sext i32 %i to i64
+ %arrayidx6 = getelementptr inbounds i32* %a, i64 %idxprom5
+ store i32 %add4, i32* %arrayidx6, align 4
+ ret void
+}