blob: dde8bef70a6dbbdd50f9c5f860d3323a0fb02cd7 [file] [log] [blame]
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -instcombine -S < %s | FileCheck %s
; Test that presence of range does not cause unprofitable transforms with bit
; arithmetics.
define i1 @without_range(i32* %A) {
; CHECK-LABEL: @without_range(
; CHECK-NEXT: [[A_VAL:%.*]] = load i32, i32* [[A:%.*]], align 8
; CHECK-NEXT: [[C:%.*]] = icmp slt i32 [[A_VAL]], 2
; CHECK-NEXT: ret i1 [[C]]
;
%A.val = load i32, i32* %A, align 8
%B = sdiv i32 %A.val, 2
%C = icmp sge i32 0, %B
ret i1 %C
}
define i1 @with_range(i32* %A) {
; CHECK-LABEL: @with_range(
; CHECK-NEXT: [[A_VAL:%.*]] = load i32, i32* [[A:%.*]], align 8, !range [[RNG0:![0-9]+]]
; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[A_VAL]], 2
; CHECK-NEXT: ret i1 [[C]]
;
%A.val = load i32, i32* %A, align 8, !range !0
%B = sdiv i32 %A.val, 2
%C = icmp sge i32 0, %B
ret i1 %C
}
!0 = !{i32 0, i32 2147483647}