; RUN: llc -march=hexagon -ifcvt-limit=0 < %s | FileCheck %s ; Check if the branch probabilities are reflected in the instructions: ; The basic block placement pass should place the more probable successor ; block as the fall-through block. The unconditional jump in the predecessor ; should then get the right hint (not_taken or ":nt") @j = external global i32 define i32 @foo(i32 %a) nounwind { ; CHECK: if (!p{{[0-3]}}.new) jump:nt entry: %tobool = icmp eq i32 %a, 0 br i1 %tobool, label %if.else, label %if.then, !prof !0 if.then: ; preds = %entry %add = add nsw i32 %a, 10 %call = tail call i32 bitcast (i32 (...)* @foobar to i32 (i32)*)(i32 %add) nounwind br label %return if.else: ; preds = %entry %call2 = tail call i32 bitcast (i32 (...)* @foobar to i32 (i32)*)(i32 4) nounwind br label %return return: ; preds = %if.else, %if.then %retval.0 = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %retval.0 } declare i32 @foobar(...) define i32 @bar(i32 %a) nounwind { ; CHECK: if (p{{[0-3]}}.new) jump:nt entry: %tobool = icmp eq i32 %a, 0 br i1 %tobool, label %if.else, label %if.then, !prof !1 if.then: ; preds = %entry %add = add nsw i32 %a, 10 %call = tail call i32 bitcast (i32 (...)* @foobar to i32 (i32)*)(i32 %add) nounwind br label %return if.else: ; preds = %entry %call2 = tail call i32 bitcast (i32 (...)* @foobar to i32 (i32)*)(i32 4) nounwind br label %return return: ; preds = %if.else, %if.then %retval.0 = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %retval.0 } define i32 @foo_bar(i32 %a, i16 signext %b) nounwind { ; CHECK: if (!cmp.eq(r{{[0-9]*}}.new,#0)) jump:nt entry: %0 = load i32, i32* @j, align 4 %tobool = icmp eq i32 %0, 0 br i1 %tobool, label %if.else, label %if.then, !prof !0 if.then: ; preds = %entry %add = add nsw i32 %a, 10 %call = tail call i32 bitcast (i32 (...)* @foobar to i32 (i32)*)(i32 %add) nounwind br label %return if.else: ; preds = %entry %add1 = add nsw i32 %a, 4 %call2 = tail call i32 bitcast (i32 (...)* @foobar to i32 (i32)*)(i32 %add1) nounwind br label %return return: ; preds = %if.else, %if.then %retval.0 = phi i32 [ %call, %if.then ], [ %call2, %if.else ] ret i32 %retval.0 } !0 = !{!"branch_weights", i32 64, i32 4} !1 = !{!"branch_weights", i32 4, i32 64}