; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=indvars -verify-scev < %s | FileCheck %s
define void @test_pr54434() {
; CHECK-LABEL: @test_pr54434(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: br i1 false, label [[FOR_COND92_PREHEADER:%.*]], label [[FOR_END106:%.*]]
; CHECK: for.cond92.preheader:
; CHECK-NEXT: br label [[FOR_COND92:%.*]]
; CHECK: for.cond92:
; CHECK-NEXT: br i1 false, label [[FOR_BODY94:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body94:
; CHECK-NEXT: br label [[FOR_COND92]]
; CHECK: for.end:
; CHECK-NEXT: br label [[FOR_COND]]
; CHECK: for.end106:
; CHECK-NEXT: ret void
;
entry:
br label %for.cond
for.cond: ; preds = %for.end, %entry
%0 = phi i32 [ %inc105, %for.end ], [ 0, %entry ]
%cmp = icmp sge i32 %0, 1
br i1 %cmp, label %for.cond92, label %for.end106
for.cond92: ; preds = %for.body94, %for.cond
%1 = phi i16 [ %inc, %for.body94 ], [ 0, %for.cond ]
%cmp93 = icmp slt i16 %1, 1
br i1 %cmp93, label %for.body94, label %for.end
for.body94: ; preds = %for.cond92
%inc = add nsw i16 %1, 1
br label %for.cond92
for.end: ; preds = %for.cond92
%inc105 = add nsw i32 %0, 1
br label %for.cond
for.end106: ; preds = %for.cond
ret void
}
define i32 @test_pr58439(i32 %a) {
; CHECK-LABEL: @test_pr58439(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: br i1 false, label [[LOOP]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: [[C_EXT_LCSSA:%.*]] = phi i32 [ 0, [[LOOP]] ]
; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], 1
; CHECK-NEXT: [[RES:%.*]] = add i32 [[C_EXT_LCSSA]], [[OR]]
; CHECK-NEXT: ret i32 [[RES]]
;
entry:
%or = or i32 %a, 1
br label %loop
loop:
%iv = phi i32 [ 1, %entry ], [ %iv.next, %loop ]
%iv.next = add i32 %iv, 1
%c.1 = icmp eq i32 %iv.next, %or
%c.ext = zext i1 %c.1 to i32
br i1 false, label %loop, label %exit
exit:
%res = add i32 %c.ext, %or
ret i32 %res
}
define i8 @l(i32 %inc, i1 %tobool.not.i) {
; CHECK-LABEL: @l(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[OUTER_HEADER:%.*]]
; CHECK: outer.header:
; CHECK-NEXT: br label [[INNER:%.*]]
; CHECK: inner:
; CHECK-NEXT: [[C_05_I:%.*]] = phi i32 [ [[INC_I:%.*]], [[INNER]] ], [ 0, [[OUTER_HEADER]] ]
; CHECK-NEXT: [[INC_I]] = add nuw nsw i32 [[C_05_I]], 1
; CHECK-NEXT: [[CMP_I:%.*]] = icmp ugt i32 [[C_05_I]], 0
; CHECK-NEXT: [[OR_COND_I:%.*]] = select i1 [[CMP_I]], i1 true, i1 [[TOBOOL_NOT_I:%.*]]
; CHECK-NEXT: br i1 [[OR_COND_I]], label [[OUTER_LATCH:%.*]], label [[INNER]]
; CHECK: outer.latch:
; CHECK-NEXT: [[C_05_I_LCSSA:%.*]] = phi i32 [ [[C_05_I]], [[INNER]] ]
; CHECK-NEXT: [[LCSSA:%.*]] = phi i32 [ 0, [[INNER]] ]
; CHECK-NEXT: [[AND:%.*]] = and i32 1, [[INC:%.*]]
; CHECK-NEXT: [[TMP0:%.*]] = trunc i32 [[AND]] to i8
; CHECK-NEXT: [[TMP1:%.*]] = trunc i32 [[C_05_I_LCSSA]] to i8
; CHECK-NEXT: [[TMP2:%.*]] = sub i8 [[TMP0]], [[TMP1]]
; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i8 [[TMP2]], 0
; CHECK-NEXT: br i1 [[TOBOOL_NOT]], label [[OUTER_HEADER]], label [[IF_THEN:%.*]]
; CHECK: if.then:
; CHECK-NEXT: ret i8 0
;
entry:
br label %outer.header
outer.header: ; preds = %h.exit, %entry
%outer.iv = phi i16 [ 0, %entry ], [ %outer.iv.next, %outer.latch ]
%and = and i32 1, %inc
%conv = sext i16 %outer.iv to i32
br label %inner
inner: ; preds = %while.body.i, %for.cond
%c.05.i = phi i32 [ %inc.i, %inner ], [ 0, %outer.header ]
%i.addr.04.i = phi i32 [ 0, %inner ], [ %conv, %outer.header ]
%inc.i = add nsw i32 %c.05.i, 1
%cmp.i = icmp sgt i32 %c.05.i, 0
%or.cond.i = select i1 %cmp.i, i1 true, i1 %tobool.not.i
br i1 %or.cond.i, label %outer.latch, label %inner
outer.latch: ; preds = %while.body.i
%lcssa = phi i32 [ 0, %inner ]
%0 = trunc i32 %and to i8
%1 = trunc i32 %c.05.i to i8
%2 = sub i8 %0, %1
%tobool.not = icmp eq i8 %2, 0
%outer.iv.next = add i16 %outer.iv, 1
br i1 %tobool.not, label %outer.header, label %if.then
if.then: ; preds = %h.exit
ret i8 0
}
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