Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 1 | ; This checks the correctness of the lowering code for the small |
| 2 | ; integer variants of sdiv and srem. |
| 3 | |
Jim Stichnoth | 729dbd0 | 2015-02-25 14:48:43 -0800 | [diff] [blame] | 4 | ; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2 | FileCheck %s |
| 5 | ; RUN: %p2i -i %s --filetype=obj --disassemble --args -Om1 | FileCheck %s |
Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 6 | |
| 7 | define i32 @sdiv_i8(i32 %a.i32, i32 %b.i32) { |
| 8 | entry: |
| 9 | %a = trunc i32 %a.i32 to i8 |
| 10 | %b = trunc i32 %b.i32 to i8 |
| 11 | %res = sdiv i8 %a, %b |
| 12 | %res.i32 = zext i8 %res to i32 |
| 13 | ret i32 %res.i32 |
Jan Voung | a2703ae | 2015-02-19 11:27:44 -0800 | [diff] [blame] | 14 | ; CHECK-LABEL: sdiv_i8 |
Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 15 | ; CHECK: cbw |
| 16 | ; CHECK: idiv |
| 17 | } |
| 18 | |
| 19 | define i32 @sdiv_i16(i32 %a.i32, i32 %b.i32) { |
| 20 | entry: |
| 21 | %a = trunc i32 %a.i32 to i16 |
| 22 | %b = trunc i32 %b.i32 to i16 |
| 23 | %res = sdiv i16 %a, %b |
| 24 | %res.i32 = zext i16 %res to i32 |
| 25 | ret i32 %res.i32 |
Jan Voung | a2703ae | 2015-02-19 11:27:44 -0800 | [diff] [blame] | 26 | ; CHECK-LABEL: sdiv_i16 |
Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 27 | ; CHECK: cwd |
| 28 | ; CHECK: idiv |
| 29 | } |
| 30 | |
| 31 | define i32 @sdiv_i32(i32 %a, i32 %b) { |
| 32 | entry: |
| 33 | %res = sdiv i32 %a, %b |
| 34 | ret i32 %res |
Jan Voung | a2703ae | 2015-02-19 11:27:44 -0800 | [diff] [blame] | 35 | ; CHECK-LABEL: sdiv_i32 |
Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 36 | ; CHECK: cdq |
| 37 | ; CHECK: idiv |
| 38 | } |
| 39 | |
| 40 | define i32 @srem_i8(i32 %a.i32, i32 %b.i32) { |
| 41 | entry: |
| 42 | %a = trunc i32 %a.i32 to i8 |
| 43 | %b = trunc i32 %b.i32 to i8 |
| 44 | %res = srem i8 %a, %b |
| 45 | %res.i32 = zext i8 %res to i32 |
| 46 | ret i32 %res.i32 |
Jan Voung | a2703ae | 2015-02-19 11:27:44 -0800 | [diff] [blame] | 47 | ; CHECK-LABEL: srem_i8 |
Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 48 | ; CHECK: cbw |
| 49 | ; CHECK: idiv |
| 50 | } |
| 51 | |
| 52 | define i32 @srem_i16(i32 %a.i32, i32 %b.i32) { |
| 53 | entry: |
| 54 | %a = trunc i32 %a.i32 to i16 |
| 55 | %b = trunc i32 %b.i32 to i16 |
| 56 | %res = srem i16 %a, %b |
| 57 | %res.i32 = zext i16 %res to i32 |
| 58 | ret i32 %res.i32 |
Jan Voung | a2703ae | 2015-02-19 11:27:44 -0800 | [diff] [blame] | 59 | ; CHECK-LABEL: srem_i16 |
Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 60 | ; CHECK: cwd |
| 61 | ; CHECK: idiv |
| 62 | } |
| 63 | |
| 64 | define i32 @srem_i32(i32 %a, i32 %b) { |
| 65 | entry: |
| 66 | %res = srem i32 %a, %b |
| 67 | ret i32 %res |
Jan Voung | a2703ae | 2015-02-19 11:27:44 -0800 | [diff] [blame] | 68 | ; CHECK-LABEL: srem_i32 |
Matt Wala | afeaee4 | 2014-08-07 13:47:30 -0700 | [diff] [blame] | 69 | ; CHECK: cdq |
| 70 | ; CHECK: idiv |
| 71 | } |