1 ; RUN: llc < %s -mtriple=i686-pc-linux-gnu -asm-verbose=0 | FileCheck %s 2 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32" 3 target triple = "i686-pc-linux-gnu" 4 5 define zeroext i16 @test1(i16 zeroext %x) nounwind { 6 entry: 7 %div = udiv i16 %x, 33 8 ret i16 %div 9 ; CHECK: test1: 10 ; CHECK: imull $63551, %eax, %eax 11 ; CHECK-NEXT: shrl $21, %eax 12 ; CHECK-NEXT: ret 13 } 14 15 define zeroext i16 @test2(i8 signext %x, i16 zeroext %c) nounwind readnone ssp noredzone { 16 entry: 17 %div = udiv i16 %c, 3 18 ret i16 %div 19 20 ; CHECK: test2: 21 ; CHECK: imull $43691, %eax, %eax 22 ; CHECK-NEXT: shrl $17, %eax 23 ; CHECK-NEXT: ret 24 } 25 26 define zeroext i8 @test3(i8 zeroext %x, i8 zeroext %c) nounwind readnone ssp noredzone { 27 entry: 28 %div = udiv i8 %c, 3 29 ret i8 %div 30 31 ; CHECK: test3: 32 ; CHECK: movzbl 8(%esp), %eax 33 ; CHECK-NEXT: imull $171, %eax, %eax 34 ; CHECK-NEXT: shrl $9, %eax 35 ; CHECK-NEXT: ret 36 } 37 38 define signext i16 @test4(i16 signext %x) nounwind { 39 entry: 40 %div = sdiv i16 %x, 33 ; <i32> [#uses=1] 41 ret i16 %div 42 ; CHECK: test4: 43 ; CHECK: imull $1986, %eax, % 44 } 45 46 define i32 @test5(i32 %A) nounwind { 47 %tmp1 = udiv i32 %A, 1577682821 ; <i32> [#uses=1] 48 ret i32 %tmp1 49 ; CHECK: test5: 50 ; CHECK: movl $365384439, %eax 51 ; CHECK: mull 4(%esp) 52 } 53 54 define signext i16 @test6(i16 signext %x) nounwind { 55 entry: 56 %div = sdiv i16 %x, 10 57 ret i16 %div 58 ; CHECK: test6: 59 ; CHECK: imull $26215, %eax, %eax 60 ; CHECK: shrl $31, %ecx 61 ; CHECK: sarl $18, %eax 62 } 63 64 define i32 @test7(i32 %x) nounwind { 65 %div = udiv i32 %x, 28 66 ret i32 %div 67 ; CHECK: test7: 68 ; CHECK: shrl $2 69 ; CHECK: movl $613566757 70 ; CHECK: mull 71 ; CHECK-NOT: shrl 72 ; CHECK: ret 73 } 74
