1 ; RUN: llc --mtriple=powerpc64le-linux-gnu < %s | FileCheck %s 2 3 ; It tests in function DAGCombiner::visitSIGN_EXTEND_INREG 4 ; signext will not be combined with extload, and causes extra zext. 5 6 declare void @g(i32 signext) 7 8 define void @foo(i8* %p) { 9 entry: 10 br label %while.body 11 12 while.body: 13 %0 = load i8, i8* %p, align 1 14 %conv = zext i8 %0 to i32 15 %cmp = icmp sgt i8 %0, 0 16 br i1 %cmp, label %if.then, label %while.body 17 ; CHECK: lbz 18 ; CHECK: extsb. 19 ; CHECK-NOT: rlwinm 20 ; CHECK: ble 21 22 if.then: 23 tail call void @g(i32 signext %conv) 24 br label %while.body 25 } 26 27
