blob: a911960e0aab6bb0f7b4b1e9d190315f5bb4b070 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=licm < %s | FileCheck %s
@c = global i16 0, align 2
; FIXME: The store should not be hoisted.
define void @test() {
; CHECK-LABEL: @test(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[V:%.*]] = phi i32 [ 10, [[ENTRY:%.*]] ], [ 0, [[LOOP_LATCH:%.*]] ]
; CHECK-NEXT: [[C:%.*]] = icmp eq i32 [[V]], 0
; CHECK-NEXT: br i1 [[C]], label [[LOOP_EXIT:%.*]], label [[LOOP_CONT:%.*]]
; CHECK: loop.cont:
; CHECK-NEXT: br i1 false, label [[LOOP_IRREDUCIBLE:%.*]], label [[LOOP_LATCH]]
; CHECK: loop.irreducible:
; CHECK-NEXT: store i16 5, ptr @c, align 2
; CHECK-NEXT: br label [[LOOP_LATCH]]
; CHECK: loop.latch:
; CHECK-NEXT: br i1 false, label [[LOOP_IRREDUCIBLE]], label [[LOOP]]
; CHECK: loop.exit:
; CHECK-NEXT: ret void
;
entry:
br label %loop
loop: ; preds = %loop.latch, %entry
%v = phi i32 [ 10, %entry ], [ 0, %loop.latch ]
%c = icmp eq i32 %v, 0
br i1 %c, label %loop.exit, label %loop.cont
loop.cont: ; preds = %loop
br i1 false, label %loop.irreducible, label %loop.latch
loop.irreducible: ; preds = %loop.latch, %loop.cont
store i16 5, ptr @c, align 2
br label %loop.latch
loop.latch: ; preds = %loop.irreducible, %loop.cont
br i1 false, label %loop.irreducible, label %loop
loop.exit: ; preds = %loop
ret void
}