Files
clang-p2996/llvm/test/Transforms/IndVarSimplify/exit-count-select.ll

123 lines
4.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -indvars -S | FileCheck %s
define i32 @logical_and_2ops(i32 %n, i32 %m) {
; CHECK-LABEL: @logical_and_2ops(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I_NEXT:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1
; CHECK-NEXT: [[COND_P0:%.*]] = icmp ult i32 [[I]], [[N:%.*]]
; CHECK-NEXT: [[COND_P1:%.*]] = icmp ult i32 [[I]], [[M:%.*]]
; CHECK-NEXT: [[COND:%.*]] = select i1 [[COND_P0]], i1 [[COND_P1]], i1 false
; CHECK-NEXT: br i1 [[COND]], label [[LOOP]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: [[I_LCSSA:%.*]] = phi i32 [ [[I]], [[LOOP]] ]
; CHECK-NEXT: ret i32 [[I_LCSSA]]
;
entry:
br label %loop
loop:
%i = phi i32 [0, %entry], [%i.next, %loop]
%i.next = add i32 %i, 1
%cond_p0 = icmp ult i32 %i, %n
%cond_p1 = icmp ult i32 %i, %m
%cond = select i1 %cond_p0, i1 %cond_p1, i1 false
br i1 %cond, label %loop, label %exit
exit:
ret i32 %i
}
define i32 @logical_or_2ops(i32 %n, i32 %m) {
; CHECK-LABEL: @logical_or_2ops(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I_NEXT:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1
; CHECK-NEXT: [[COND_P0:%.*]] = icmp uge i32 [[I]], [[N:%.*]]
; CHECK-NEXT: [[COND_P1:%.*]] = icmp uge i32 [[I]], [[M:%.*]]
; CHECK-NEXT: [[COND:%.*]] = select i1 [[COND_P0]], i1 true, i1 [[COND_P1]]
; CHECK-NEXT: br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
; CHECK: exit:
; CHECK-NEXT: [[I_LCSSA:%.*]] = phi i32 [ [[I]], [[LOOP]] ]
; CHECK-NEXT: ret i32 [[I_LCSSA]]
;
entry:
br label %loop
loop:
%i = phi i32 [0, %entry], [%i.next, %loop]
%i.next = add i32 %i, 1
%cond_p0 = icmp uge i32 %i, %n
%cond_p1 = icmp uge i32 %i, %m
%cond = select i1 %cond_p0, i1 true, i1 %cond_p1
br i1 %cond, label %exit, label %loop
exit:
ret i32 %i
}
define i32 @logical_and_3ops(i32 %n, i32 %m, i32 %k) {
; CHECK-LABEL: @logical_and_3ops(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I_NEXT:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1
; CHECK-NEXT: [[COND_P0:%.*]] = icmp ult i32 [[I]], [[N:%.*]]
; CHECK-NEXT: [[COND_P1:%.*]] = icmp ult i32 [[I]], [[M:%.*]]
; CHECK-NEXT: [[COND_P2:%.*]] = icmp ult i32 [[I]], [[K:%.*]]
; CHECK-NEXT: [[COND_P3:%.*]] = select i1 [[COND_P0]], i1 [[COND_P1]], i1 false
; CHECK-NEXT: [[COND:%.*]] = select i1 [[COND_P3]], i1 [[COND_P2]], i1 false
; CHECK-NEXT: br i1 [[COND]], label [[LOOP]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: [[I_LCSSA:%.*]] = phi i32 [ [[I]], [[LOOP]] ]
; CHECK-NEXT: ret i32 [[I_LCSSA]]
;
entry:
br label %loop
loop:
%i = phi i32 [0, %entry], [%i.next, %loop]
%i.next = add i32 %i, 1
%cond_p0 = icmp ult i32 %i, %n
%cond_p1 = icmp ult i32 %i, %m
%cond_p2 = icmp ult i32 %i, %k
%cond_p3 = select i1 %cond_p0, i1 %cond_p1, i1 false
%cond = select i1 %cond_p3, i1 %cond_p2, i1 false
br i1 %cond, label %loop, label %exit
exit:
ret i32 %i
}
define i32 @logical_or_3ops(i32 %n, i32 %m, i32 %k) {
; CHECK-LABEL: @logical_or_3ops(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[I:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[I_NEXT:%.*]], [[LOOP]] ]
; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1
; CHECK-NEXT: [[COND_P0:%.*]] = icmp uge i32 [[I]], [[N:%.*]]
; CHECK-NEXT: [[COND_P1:%.*]] = icmp uge i32 [[I]], [[M:%.*]]
; CHECK-NEXT: [[COND_P2:%.*]] = icmp uge i32 [[I]], [[K:%.*]]
; CHECK-NEXT: [[COND_P3:%.*]] = select i1 [[COND_P0]], i1 true, i1 [[COND_P1]]
; CHECK-NEXT: [[COND:%.*]] = select i1 [[COND_P3]], i1 true, i1 [[COND_P2]]
; CHECK-NEXT: br i1 [[COND]], label [[EXIT:%.*]], label [[LOOP]]
; CHECK: exit:
; CHECK-NEXT: [[I_LCSSA:%.*]] = phi i32 [ [[I]], [[LOOP]] ]
; CHECK-NEXT: ret i32 [[I_LCSSA]]
;
entry:
br label %loop
loop:
%i = phi i32 [0, %entry], [%i.next, %loop]
%i.next = add i32 %i, 1
%cond_p0 = icmp uge i32 %i, %n
%cond_p1 = icmp uge i32 %i, %m
%cond_p2 = icmp uge i32 %i, %k
%cond_p3 = select i1 %cond_p0, i1 true, i1 %cond_p1
%cond = select i1 %cond_p3, i1 true, i1 %cond_p2
br i1 %cond, label %exit, label %loop
exit:
ret i32 %i
}