44 lines
1.4 KiB
LLVM
44 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -fix-irreducible -enable-new-pm=0 -S | FileCheck %s
|
|
|
|
define void @loop_1(i32 %Value, i1 %PredEntry, i1 %PredD) {
|
|
; CHECK-LABEL: @loop_1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: br label [[IRR_GUARD:%.*]]
|
|
; CHECK: A:
|
|
; CHECK-NEXT: br label [[IRR_GUARD]]
|
|
; CHECK: B:
|
|
; CHECK-NEXT: br label [[NODEBLOCK:%.*]]
|
|
; CHECK: NodeBlock:
|
|
; CHECK-NEXT: [[PIVOT:%.*]] = icmp slt i32 [[VALUE:%.*]], 1
|
|
; CHECK-NEXT: br i1 [[PIVOT]], label [[LEAFBLOCK:%.*]], label [[LEAFBLOCK1:%.*]]
|
|
; CHECK: LeafBlock1:
|
|
; CHECK-NEXT: [[SWITCHLEAF2:%.*]] = icmp eq i32 [[VALUE]], 1
|
|
; CHECK-NEXT: br i1 [[SWITCHLEAF2]], label [[IRR_GUARD]], label [[NEWDEFAULT:%.*]]
|
|
; CHECK: LeafBlock:
|
|
; CHECK-NEXT: [[SWITCHLEAF:%.*]] = icmp eq i32 [[VALUE]], 0
|
|
; CHECK-NEXT: br i1 [[SWITCHLEAF]], label [[IRR_GUARD]], label [[NEWDEFAULT]]
|
|
; CHECK: NewDefault:
|
|
; CHECK-NEXT: br label [[EXIT:%.*]]
|
|
; CHECK: exit:
|
|
; CHECK-NEXT: ret void
|
|
; CHECK: irr.guard:
|
|
; CHECK-NEXT: [[GUARD_A:%.*]] = phi i1 [ true, [[LEAFBLOCK]] ], [ [[PREDENTRY:%.*]], [[ENTRY:%.*]] ], [ false, [[LEAFBLOCK1]] ], [ false, [[A:%.*]] ]
|
|
; CHECK-NEXT: br i1 [[GUARD_A]], label [[A]], label [[B:%.*]]
|
|
;
|
|
entry:
|
|
br i1 %PredEntry, label %A, label %B
|
|
|
|
A:
|
|
br label %B
|
|
|
|
B:
|
|
switch i32 %Value, label %exit [
|
|
i32 0, label %A
|
|
i32 1, label %B
|
|
]
|
|
|
|
exit:
|
|
ret void
|
|
}
|