mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 16:31:16 +00:00
c22d4d1500
of a computation. This fixes some infinite loops when dealing with TD that has no native types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86670 91177308-0d34-0410-b5e6-96231b3b80d8
42 lines
1.1 KiB
LLVM
42 lines
1.1 KiB
LLVM
; RUN: opt < %s -instcombine -S | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32"
|
|
|
|
define i32 @mul(i32 %x, i32 %y) {
|
|
%A = trunc i32 %x to i8
|
|
%B = trunc i32 %y to i8
|
|
%C = mul i8 %A, %B
|
|
%D = zext i8 %C to i32
|
|
ret i32 %D
|
|
; CHECK: %C = mul i32 %x, %y
|
|
; CHECK: %D = and i32 %C, 255
|
|
; CHECK: ret i32 %D
|
|
}
|
|
|
|
define i32 @select1(i1 %cond, i32 %x, i32 %y, i32 %z) {
|
|
%A = trunc i32 %x to i8
|
|
%B = trunc i32 %y to i8
|
|
%C = trunc i32 %z to i8
|
|
%D = add i8 %A, %B
|
|
%E = select i1 %cond, i8 %C, i8 %D
|
|
%F = zext i8 %E to i32
|
|
ret i32 %F
|
|
; CHECK: %D = add i32 %x, %y
|
|
; CHECK: %E = select i1 %cond, i32 %z, i32 %D
|
|
; CHECK: %F = and i32 %E, 255
|
|
; CHECK: ret i32 %F
|
|
}
|
|
|
|
define i8 @select2(i1 %cond, i8 %x, i8 %y, i8 %z) {
|
|
%A = zext i8 %x to i32
|
|
%B = zext i8 %y to i32
|
|
%C = zext i8 %z to i32
|
|
%D = add i32 %A, %B
|
|
%E = select i1 %cond, i32 %C, i32 %D
|
|
%F = trunc i32 %E to i8
|
|
ret i8 %F
|
|
; CHECK: %D = add i8 %x, %y
|
|
; CHECK: %E = select i1 %cond, i8 %z, i8 %D
|
|
; CHECK: ret i8 %E
|
|
}
|