You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.3 KiB
86 lines
2.3 KiB
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
define i32 @t1(i16 zeroext %x, i32 %y) {
|
|
; CHECK-LABEL: @t1(
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: [[CONV:%.*]] = zext i16 %x to i32
|
|
; CHECK-NEXT: [[TMP0:%.*]] = add i32 %y, 1
|
|
; CHECK-NEXT: [[D:%.*]] = lshr i32 [[CONV]], [[TMP0]]
|
|
; CHECK-NEXT: ret i32 [[D]]
|
|
;
|
|
entry:
|
|
%conv = zext i16 %x to i32
|
|
%s = shl i32 2, %y
|
|
%d = sdiv i32 %conv, %s
|
|
ret i32 %d
|
|
}
|
|
|
|
; rdar://11721329
|
|
define i64 @t2(i64 %x, i32 %y) {
|
|
; CHECK-LABEL: @t2(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = zext i32 %y to i64
|
|
; CHECK-NEXT: [[TMP2:%.*]] = lshr i64 %x, [[TMP1]]
|
|
; CHECK-NEXT: ret i64 [[TMP2]]
|
|
;
|
|
%1 = shl i32 1, %y
|
|
%2 = zext i32 %1 to i64
|
|
%3 = udiv i64 %x, %2
|
|
ret i64 %3
|
|
}
|
|
|
|
; PR13250
|
|
define i64 @t3(i64 %x, i32 %y) {
|
|
; CHECK-LABEL: @t3(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = add i32 %y, 2
|
|
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[TMP1]] to i64
|
|
; CHECK-NEXT: [[TMP3:%.*]] = lshr i64 %x, [[TMP2]]
|
|
; CHECK-NEXT: ret i64 [[TMP3]]
|
|
;
|
|
%1 = shl i32 4, %y
|
|
%2 = zext i32 %1 to i64
|
|
%3 = udiv i64 %x, %2
|
|
ret i64 %3
|
|
}
|
|
|
|
define i32 @t4(i32 %x, i32 %y) {
|
|
; CHECK-LABEL: @t4(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 %y, 5
|
|
; CHECK-NEXT: [[DOTV:%.*]] = select i1 [[TMP1]], i32 5, i32 %y
|
|
; CHECK-NEXT: [[TMP2:%.*]] = lshr i32 %x, [[DOTV]]
|
|
; CHECK-NEXT: ret i32 [[TMP2]]
|
|
;
|
|
%1 = shl i32 1, %y
|
|
%2 = icmp ult i32 %1, 32
|
|
%3 = select i1 %2, i32 32, i32 %1
|
|
%4 = udiv i32 %x, %3
|
|
ret i32 %4
|
|
}
|
|
|
|
define i32 @t5(i1 %x, i1 %y, i32 %V) {
|
|
; CHECK-LABEL: @t5(
|
|
; CHECK-NEXT: [[DOTV:%.*]] = select i1 %x, i32 5, i32 6
|
|
; CHECK-NEXT: [[TMP1:%.*]] = lshr i32 %V, [[DOTV]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = select i1 %y, i32 [[TMP1]], i32 0
|
|
; CHECK-NEXT: ret i32 [[TMP2]]
|
|
;
|
|
%1 = shl i32 1, %V
|
|
%2 = select i1 %x, i32 32, i32 64
|
|
%3 = select i1 %y, i32 %2, i32 %1
|
|
%4 = udiv i32 %V, %3
|
|
ret i32 %4
|
|
}
|
|
|
|
define i32 @t6(i32 %x, i32 %z) {
|
|
; CHECK-LABEL: @t6(
|
|
; CHECK-NEXT: [[X_IS_ZERO:%.*]] = icmp eq i32 %x, 0
|
|
; CHECK-NEXT: [[DIVISOR:%.*]] = select i1 [[X_IS_ZERO]], i32 1, i32 %x
|
|
; CHECK-NEXT: [[Y:%.*]] = udiv i32 %z, [[DIVISOR]]
|
|
; CHECK-NEXT: ret i32 [[Y]]
|
|
;
|
|
%x_is_zero = icmp eq i32 %x, 0
|
|
%divisor = select i1 %x_is_zero, i32 1, i32 %x
|
|
%y = udiv i32 %z, %divisor
|
|
ret i32 %y
|
|
}
|