blob: c7939345f14288be44b44525af961110eef354cf [file] [log] [blame]
; RUN: llc -mtriple=armv7a-none-eabi %s -o - -verify-machineinstrs | FileCheck %s
; RUN: llc -mtriple=thumbv7a-none-eabi %s -o - -verify-machineinstrs | FileCheck %s
; RUN: llc -mtriple=thumbv7m-none-eabi %s -o - -verify-machineinstrs | FileCheck %s
; Check we do not hit verifier errors from ifcvting volatile ldrd's
; CHECK: ldrdne
; CHECK: ldrdne
; CHECK: ldrdne
; CHECK: ldrdne
define void @c(ptr %b) noreturn nounwind {
entry:
br label %for.cond
for.cond: ; preds = %land.end.3, %entry
%a.0 = phi i32 [ 0, %entry ], [ %conv2.3, %land.end.3 ]
%tobool.not = icmp eq i32 %a.0, 0
br i1 %tobool.not, label %land.end, label %land.rhs
land.rhs: ; preds = %for.cond
%0 = load volatile i64, ptr %b, align 8
br label %land.end
land.end: ; preds = %land.rhs, %for.cond
%sub.i = add nuw nsw i32 %a.0, 65533
%conv2 = and i32 %sub.i, 65535
%tobool.not.1 = icmp eq i32 %conv2, 0
br i1 %tobool.not.1, label %land.end.1, label %land.rhs.1
land.rhs.1: ; preds = %land.end
%1 = load volatile i64, ptr %b, align 8
br label %land.end.1
land.end.1: ; preds = %land.rhs.1, %land.end
%sub.i.1 = add nuw nsw i32 %a.0, 65530
%conv2.1 = and i32 %sub.i.1, 65535
%tobool.not.2 = icmp eq i32 %conv2.1, 0
br i1 %tobool.not.2, label %land.end.2, label %land.rhs.2
land.rhs.2: ; preds = %land.end.1
%2 = load volatile i64, ptr %b, align 8
br label %land.end.2
land.end.2: ; preds = %land.rhs.2, %land.end.1
%sub.i.2 = add nuw nsw i32 %a.0, 65527
%conv2.2 = and i32 %sub.i.2, 65535
%tobool.not.3 = icmp eq i32 %conv2.2, 0
br i1 %tobool.not.3, label %land.end.3, label %land.rhs.3
land.rhs.3: ; preds = %land.end.2
%3 = load volatile i64, ptr %b, align 8
br label %land.end.3
land.end.3: ; preds = %land.rhs.3, %land.end.2
%sub.i.3 = add nuw nsw i32 %a.0, 65524
%conv2.3 = and i32 %sub.i.3, 65535
br label %for.cond
}