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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=sccp -S | FileCheck %s
; PR1938
define i32 @main(i1 %arg) {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[INDVAR:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[K:%.*]], [[BB_BACKEDGE:%.*]] ]
; CHECK-NEXT: [[K]] = add i32 [[INDVAR]], 1
; CHECK-NEXT: br i1 [[ARG:%.*]], label [[COND_TRUE:%.*]], label [[COND_FALSE:%.*]]
; CHECK: cond_true:
; CHECK-NEXT: [[TMP97:%.*]] = icmp slt i32 [[K]], 10
; CHECK-NEXT: br i1 [[TMP97]], label [[BB_BACKEDGE]], label [[BB12:%.*]]
; CHECK: bb.backedge:
; CHECK-NEXT: br label [[BB]]
; CHECK: cond_false:
; CHECK-NEXT: [[TMP9:%.*]] = icmp slt i32 [[K]], 10
; CHECK-NEXT: br i1 [[TMP9]], label [[BB_BACKEDGE]], label [[BB12]]
; CHECK: bb12:
; CHECK-NEXT: [[TMP14:%.*]] = icmp eq i32 [[K]], 10
; CHECK-NEXT: br i1 [[TMP14]], label [[COND_NEXT18:%.*]], label [[COND_TRUE17:%.*]]
; CHECK: cond_true17:
; CHECK-NEXT: tail call void @abort()
; CHECK-NEXT: unreachable
; CHECK: cond_next18:
; CHECK-NEXT: ret i32 0
;
entry:
br label %bb
bb:
%indvar = phi i32 [ 0, %entry ], [ %k, %bb.backedge ]
%k = add i32 %indvar, 1
br i1 %arg, label %cond_true, label %cond_false
cond_true:
%tmp97 = icmp slt i32 %k, 10
br i1 %tmp97, label %bb.backedge, label %bb12
bb.backedge:
br label %bb
cond_false:
%tmp9 = icmp slt i32 %k, 10
br i1 %tmp9, label %bb.backedge, label %bb12
bb12:
%tmp14 = icmp eq i32 %k, 10
br i1 %tmp14, label %cond_next18, label %cond_true17
cond_true17:
tail call void @abort( )
unreachable
cond_next18:
ret i32 0
}
declare void @abort()
|
