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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=CHECK3 4define i32 @fold_urem_positive_odd(i32 %x) {5; CHECK-LABEL: fold_urem_positive_odd:6; CHECK: # %bb.0:7; CHECK-NEXT: movl %edi, %eax8; CHECK-NEXT: movl %edi, %ecx9; CHECK-NEXT: imulq $1491936009, %rcx, %rcx # imm = 0x58ED230910; CHECK-NEXT: shrq $32, %rcx11; CHECK-NEXT: movl %edi, %edx12; CHECK-NEXT: subl %ecx, %edx13; CHECK-NEXT: shrl %edx14; CHECK-NEXT: addl %ecx, %edx15; CHECK-NEXT: shrl $6, %edx16; CHECK-NEXT: imull $95, %edx, %ecx17; CHECK-NEXT: subl %ecx, %eax18; CHECK-NEXT: retq19 %1 = urem i32 %x, 9520 ret i32 %121}22 23 24define i32 @fold_urem_positive_even(i32 %x) {25; CHECK-LABEL: fold_urem_positive_even:26; CHECK: # %bb.0:27; CHECK-NEXT: movl %edi, %eax28; CHECK-NEXT: movl %edi, %ecx29; CHECK-NEXT: movl $4149100483, %edx # imm = 0xF74E3FC330; CHECK-NEXT: imulq %rcx, %rdx31; CHECK-NEXT: shrq $42, %rdx32; CHECK-NEXT: imull $1060, %edx, %ecx # imm = 0x42433; CHECK-NEXT: subl %ecx, %eax34; CHECK-NEXT: retq35 %1 = urem i32 %x, 106036 ret i32 %137}38 39 40; Don't fold if we can combine urem with udiv.41define i32 @combine_urem_udiv(i32 %x) {42; CHECK-LABEL: combine_urem_udiv:43; CHECK: # %bb.0:44; CHECK-NEXT: movl %edi, %eax45; CHECK-NEXT: imulq $1491936009, %rax, %rcx # imm = 0x58ED230946; CHECK-NEXT: shrq $32, %rcx47; CHECK-NEXT: movl %edi, %eax48; CHECK-NEXT: subl %ecx, %eax49; CHECK-NEXT: shrl %eax50; CHECK-NEXT: addl %ecx, %eax51; CHECK-NEXT: shrl $6, %eax52; CHECK-NEXT: imull $95, %eax, %ecx53; CHECK-NEXT: subl %ecx, %edi54; CHECK-NEXT: addl %edi, %eax55; CHECK-NEXT: retq56 %1 = urem i32 %x, 9557 %2 = udiv i32 %x, 9558 %3 = add i32 %1, %259 ret i32 %360}61 62; Don't fold for divisors that are a power of two.63define i32 @dont_fold_urem_power_of_two(i32 %x) {64; CHECK-LABEL: dont_fold_urem_power_of_two:65; CHECK: # %bb.0:66; CHECK-NEXT: movl %edi, %eax67; CHECK-NEXT: andl $63, %eax68; CHECK-NEXT: retq69 %1 = urem i32 %x, 6470 ret i32 %171}72 73; Don't fold if the divisor is one.74define i32 @dont_fold_urem_one(i32 %x) {75; CHECK-LABEL: dont_fold_urem_one:76; CHECK: # %bb.0:77; CHECK-NEXT: xorl %eax, %eax78; CHECK-NEXT: retq79 %1 = urem i32 %x, 180 ret i32 %181}82 83; Don't fold if the divisor is 2^32.84define i32 @dont_fold_urem_i32_umax(i32 %x) {85; CHECK-LABEL: dont_fold_urem_i32_umax:86; CHECK: # %bb.0:87; CHECK-NEXT: retq88 %1 = urem i32 %x, 429496729689 ret i32 %190}91 92; Don't fold i64 urem93define i64 @dont_fold_urem_i64(i64 %x) {94; CHECK-LABEL: dont_fold_urem_i64:95; CHECK: # %bb.0:96; CHECK-NEXT: movq %rdi, %rax97; CHECK-NEXT: shrq %rax98; CHECK-NEXT: movabsq $6023426636313322977, %rcx # imm = 0x5397829CBC14E5E199; CHECK-NEXT: mulq %rcx100; CHECK-NEXT: shrq $4, %rdx101; CHECK-NEXT: imulq $98, %rdx, %rax102; CHECK-NEXT: subq %rax, %rdi103; CHECK-NEXT: movq %rdi, %rax104; CHECK-NEXT: retq105 %1 = urem i64 %x, 98106 ret i64 %1107}108