llvm-project/llvm/test/Transforms/InstSimplify/rem.ll

52 lines
1.1 KiB
LLVM

; NOTE: Assertions have been autogenerated by update_test_checks.py
; RUN: opt < %s -instsimplify -S | FileCheck %s
define i32 @select1(i32 %x, i1 %b) {
; CHECK-LABEL: @select1(
; CHECK: ret i32 0
;
%rhs = select i1 %b, i32 %x, i32 1
%rem = srem i32 %x, %rhs
ret i32 %rem
}
define i32 @select2(i32 %x, i1 %b) {
; CHECK-LABEL: @select2(
; CHECK: ret i32 0
;
%rhs = select i1 %b, i32 %x, i32 1
%rem = urem i32 %x, %rhs
ret i32 %rem
}
define i32 @rem1(i32 %x, i32 %n) {
; CHECK-LABEL: @rem1(
; CHECK: [[MOD:%.*]] = srem i32 %x, %n
; CHECK-NEXT: ret i32 [[MOD]]
;
%mod = srem i32 %x, %n
%mod1 = srem i32 %mod, %n
ret i32 %mod1
}
define i32 @rem2(i32 %x, i32 %n) {
; CHECK-LABEL: @rem2(
; CHECK: [[MOD:%.*]] = urem i32 %x, %n
; CHECK-NEXT: ret i32 [[MOD]]
;
%mod = urem i32 %x, %n
%mod1 = urem i32 %mod, %n
ret i32 %mod1
}
define i32 @rem3(i32 %x, i32 %n) {
; CHECK-LABEL: @rem3(
; CHECK: [[MOD:%.*]] = srem i32 %x, %n
; CHECK-NEXT: [[MOD1:%.*]] = urem i32 [[MOD]], %n
; CHECK-NEXT: ret i32 [[MOD1]]
;
%mod = srem i32 %x, %n
%mod1 = urem i32 %mod, %n
ret i32 %mod1
}