+; 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) nounwind {
+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:
-; CHECK: t1
-; CHECK-NOT: sdiv
-; CHECK: lshr i32 %conv
%conv = zext i16 %x to i32
%s = shl i32 2, %y
%d = sdiv i32 %conv, %s
}
; rdar://11721329
-define i64 @t2(i64 %x, i32 %y) nounwind {
-; CHECK: t2
-; CHECK-NOT: udiv
-; CHECK: lshr i64 %x
+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
}
; PR13250
-define i64 @t3(i64 %x, i32 %y) nounwind {
-; CHECK: t3
-; CHECK-NOT: udiv
-; CHECK-NEXT: %1 = add i32 %y, 2
-; CHECK-NEXT: %2 = zext i32 %1 to i64
-; CHECK-NEXT: %3 = lshr i64 %x, %2
-; CHECK-NEXT: ret i64 %3
+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) nounwind {
-; CHECK: t4
-; CHECK-NOT: udiv
-; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 %y, 5
-; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 5, i32 %y
-; CHECK-NEXT: [[SHR:%.*]] = lshr i32 %x, [[SEL]]
-; CHECK-NEXT: ret i32 [[SHR]]
+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
ret i32 %4
}
-define i32 @t5(i1 %x, i1 %y, i32 %V) nounwind {
-; CHECK: t5
-; CHECK-NOT: udiv
-; CHECK-NEXT: [[SEL1:%.*]] = select i1 %x, i32 5, i32 6
-; CHECK-NEXT: [[LSHR:%.*]] = lshr i32 %V, [[SEL1]]
-; CHECK-NEXT: [[SEL2:%.*]] = select i1 %y, i32 [[LSHR]], i32 0
-; CHECK-NEXT: ret i32 [[SEL2]]
+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
ret i32 %4
}
-define i32 @t6(i32 %x, i32 %z) nounwind{
-; CHECK: t6
-; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %x, 0
-; CHECK-NOT: udiv i32 %z, %x
+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