44 lines
1.3 KiB
LLVM
44 lines
1.3 KiB
LLVM
|
; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution -S < %s | FileCheck %s
|
||
|
|
; RUN: opt -disable-output "-passes=print<scalar-evolution>" -S < %s 2>&1 | FileCheck %s
|
||
|
|
|
||
|
|
define i64 @test1(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: @test1
|
||
|
|
%div = udiv i32 %a, %b
|
||
|
|
%zext = zext i32 %div to i64
|
||
|
|
; CHECK: %zext
|
||
|
|
; CHECK-NEXT: --> ((zext i32 %a to i64) /u (zext i32 %b to i64))
|
||
|
|
ret i64 %zext
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test2(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: @test2
|
||
|
|
%rem = urem i32 %a, %b
|
||
|
|
%zext = zext i32 %rem to i64
|
||
|
|
; CHECK: %zext
|
||
|
|
; CHECK-NEXT: --> ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
|
||
|
|
ret i64 %zext
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test3(i32 %a, i32 %b) {
|
||
|
|
; CHECK-LABEL: @test3
|
||
|
|
%div = udiv i32 %a, %b
|
||
|
|
%mul = mul i32 %div, %b
|
||
|
|
%sub = sub i32 %a, %mul
|
||
|
|
%zext = zext i32 %sub to i64
|
||
|
|
; CHECK: %zext
|
||
|
|
; CHECK-NEXT: --> ((zext i32 %a to i64) + (-1 * (zext i32 %b to i64) * ((zext i32 %a to i64) /u (zext i32 %b to i64))))
|
||
|
|
ret i64 %zext
|
||
|
|
}
|
||
|
|
|
||
|
|
define i64 @test4(i32 %t) {
|
||
|
|
; CHECK-LABEL: @test4
|
||
|
|
%a = udiv i32 %t, 2
|
||
|
|
%div = udiv i32 %t, 112
|
||
|
|
%mul = mul i32 %div, 56
|
||
|
|
%sub = sub i32 %a, %mul
|
||
|
|
%zext = zext i32 %sub to i64
|
||
|
|
; CHECK: %zext
|
||
|
|
; CHECK-NEXT: --> ((-56 * ((zext i32 %t to i64) /u 112))<nsw> + ((zext i32 %t to i64) /u 2))
|
||
|
|
ret i64 %zext
|
||
|
|
}
|