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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt < %s -S -passes='instcombine<no-verify-fixpoint>' | FileCheck %s
; We do not reach a fixpoint, because we first have to infer nsw on the IV add,
; and could eliminate the icmp slt afterwards, but don't revisit it.
target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128"
define i32 @test() {
; CHECK-LABEL: define i32 @test() {
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 true, label [[BB_I:%.*]], label [[CALCULATECOLORSPECIFICBLACKLEVEL_EXIT:%.*]]
; CHECK: bb.i:
; CHECK-NEXT: br label [[BB51_I_I:%.*]]
; CHECK: bb27.i.i:
; CHECK-NEXT: [[TMP50_I_I:%.*]] = add nsw i32 [[X_0_I_I:%.*]], 2
; CHECK-NEXT: br label [[BB51_I_I]]
; CHECK: bb51.i.i:
; CHECK-NEXT: [[X_0_I_I]] = phi i32 [ [[TMP50_I_I]], [[BB27_I_I:%.*]] ], [ 0, [[BB_I]] ]
; CHECK-NEXT: [[TMP54_I_I:%.*]] = icmp slt i32 [[X_0_I_I]], 0
; CHECK-NEXT: br i1 [[TMP54_I_I]], label [[BB27_I_I]], label [[BB57_I_I:%.*]]
; CHECK: bb57.i.i:
; CHECK-NEXT: ret i32 0
; CHECK: calculateColorSpecificBlackLevel.exit:
; CHECK-NEXT: ret i32 undef
;
entry:
%tmp50.i17 = icmp slt i32 0, 4
br i1 %tmp50.i17, label %bb.i, label %calculateColorSpecificBlackLevel.exit
bb.i:
br label %bb51.i.i
bb27.i.i:
%tmp31.i.i = load i16, ptr null, align 2
%tmp35.i.i = icmp ult i16 %tmp31.i.i, 1
%tmp41.i.i = icmp ugt i16 %tmp31.i.i, -1
%bothcond.i.i = or i1 %tmp35.i.i, %tmp41.i.i
%bothcond1.i.i = zext i1 %bothcond.i.i to i32
%tmp46.i.i = xor i32 %bothcond1.i.i, 1
%count.0.i.i = add i32 %count.1.i.i, %tmp46.i.i
%tmp50.i.i = add i32 %x.0.i.i, 2
br label %bb51.i.i
bb51.i.i:
%count.1.i.i = phi i32 [ %count.0.i.i, %bb27.i.i ], [ 0, %bb.i ]
%x.0.i.i = phi i32 [ %tmp50.i.i, %bb27.i.i ], [ 0, %bb.i ]
%tmp54.i.i = icmp slt i32 %x.0.i.i, 0
br i1 %tmp54.i.i, label %bb27.i.i, label %bb57.i.i
bb57.i.i:
ret i32 0
calculateColorSpecificBlackLevel.exit:
ret i32 undef
}
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