| ; This checks the correctness of the lowering code for the small |
| ; integer variants of sdiv and srem. |
| |
| ; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2 | FileCheck %s |
| ; RUN: %p2i -i %s --filetype=obj --disassemble --args -Om1 | FileCheck %s |
| |
| define i32 @sdiv_i8(i32 %a.i32, i32 %b.i32) { |
| entry: |
| %a = trunc i32 %a.i32 to i8 |
| %b = trunc i32 %b.i32 to i8 |
| %res = sdiv i8 %a, %b |
| %res.i32 = zext i8 %res to i32 |
| ret i32 %res.i32 |
| ; CHECK-LABEL: sdiv_i8 |
| ; CHECK: cbw |
| ; CHECK: idiv |
| } |
| |
| define i32 @sdiv_i16(i32 %a.i32, i32 %b.i32) { |
| entry: |
| %a = trunc i32 %a.i32 to i16 |
| %b = trunc i32 %b.i32 to i16 |
| %res = sdiv i16 %a, %b |
| %res.i32 = zext i16 %res to i32 |
| ret i32 %res.i32 |
| ; CHECK-LABEL: sdiv_i16 |
| ; CHECK: cwd |
| ; CHECK: idiv |
| } |
| |
| define i32 @sdiv_i32(i32 %a, i32 %b) { |
| entry: |
| %res = sdiv i32 %a, %b |
| ret i32 %res |
| ; CHECK-LABEL: sdiv_i32 |
| ; CHECK: cdq |
| ; CHECK: idiv |
| } |
| |
| define i32 @srem_i8(i32 %a.i32, i32 %b.i32) { |
| entry: |
| %a = trunc i32 %a.i32 to i8 |
| %b = trunc i32 %b.i32 to i8 |
| %res = srem i8 %a, %b |
| %res.i32 = zext i8 %res to i32 |
| ret i32 %res.i32 |
| ; CHECK-LABEL: srem_i8 |
| ; CHECK: cbw |
| ; CHECK: idiv |
| } |
| |
| define i32 @srem_i16(i32 %a.i32, i32 %b.i32) { |
| entry: |
| %a = trunc i32 %a.i32 to i16 |
| %b = trunc i32 %b.i32 to i16 |
| %res = srem i16 %a, %b |
| %res.i32 = zext i16 %res to i32 |
| ret i32 %res.i32 |
| ; CHECK-LABEL: srem_i16 |
| ; CHECK: cwd |
| ; CHECK: idiv |
| } |
| |
| define i32 @srem_i32(i32 %a, i32 %b) { |
| entry: |
| %res = srem i32 %a, %b |
| ret i32 %res |
| ; CHECK-LABEL: srem_i32 |
| ; CHECK: cdq |
| ; CHECK: idiv |
| } |