mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 23:31:32 +00:00
94 lines
1.8 KiB
LLVM
94 lines
1.8 KiB
LLVM
|
; RUN: opt < %s -instcombine -S | FileCheck %s
|
||
|
|
|
||
|
|
target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
|
||
|
|
|
||
|
|
; CHECK-LABEL: define i32 @positive1
|
||
|
|
; CHECK: switch i32
|
||
|
|
; CHECK: i32 10, label
|
||
|
|
; CHECK: i32 100, label
|
||
|
|
; CHECK: i32 1001, label
|
||
|
|
|
||
|
|
define i32 @positive1(i64 %a) {
|
||
|
|
entry:
|
||
|
|
%and = and i64 %a, 4294967295
|
||
|
|
switch i64 %and, label %sw.default [
|
||
|
|
i64 10, label %return
|
||
|
|
i64 100, label %sw.bb1
|
||
|
|
i64 1001, label %sw.bb2
|
||
|
|
]
|
||
|
|
|
||
|
|
sw.bb1:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
sw.bb2:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
sw.default:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
return:
|
||
|
|
%retval.0 = phi i32 [ 24, %sw.default ], [ 123, %sw.bb2 ], [ 213, %sw.bb1 ], [ 231, %entry ]
|
||
|
|
ret i32 %retval.0
|
||
|
|
}
|
||
|
|
|
||
|
|
; CHECK-LABEL: define i32 @negative1
|
||
|
|
; CHECK: switch i32
|
||
|
|
; CHECK: i32 -10, label
|
||
|
|
; CHECK: i32 -100, label
|
||
|
|
; CHECK: i32 -1001, label
|
||
|
|
|
||
|
|
define i32 @negative1(i64 %a) {
|
||
|
|
entry:
|
||
|
|
%or = or i64 %a, -4294967296
|
||
|
|
switch i64 %or, label %sw.default [
|
||
|
|
i64 -10, label %return
|
||
|
|
i64 -100, label %sw.bb1
|
||
|
|
i64 -1001, label %sw.bb2
|
||
|
|
]
|
||
|
|
|
||
|
|
sw.bb1:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
sw.bb2:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
sw.default:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
return:
|
||
|
|
%retval.0 = phi i32 [ 24, %sw.default ], [ 123, %sw.bb2 ], [ 213, %sw.bb1 ], [ 231, %entry ]
|
||
|
|
ret i32 %retval.0
|
||
|
|
}
|
||
|
|
|
||
|
|
; Make sure truncating a constant int larger than 64-bit doesn't trigger an
|
||
|
|
; assertion.
|
||
|
|
|
||
|
|
; CHECK-LABEL: define i32 @trunc72to68
|
||
|
|
; CHECK: switch i68
|
||
|
|
; CHECK: i68 10, label
|
||
|
|
; CHECK: i68 100, label
|
||
|
|
; CHECK: i68 1001, label
|
||
|
|
|
||
|
|
define i32 @trunc72to68(i72 %a) {
|
||
|
|
entry:
|
||
|
|
%and = and i72 %a, 295147905179352825855
|
||
|
|
switch i72 %and, label %sw.default [
|
||
|
|
i72 10, label %return
|
||
|
|
i72 100, label %sw.bb1
|
||
|
|
i72 1001, label %sw.bb2
|
||
|
|
]
|
||
|
|
|
||
|
|
sw.bb1:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
sw.bb2:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
sw.default:
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
return:
|
||
|
|
%retval.0 = phi i32 [ 24, %sw.default ], [ 123, %sw.bb2 ], [ 213, %sw.bb1 ], [ 231, %entry ]
|
||
|
|
ret i32 %retval.0
|
||
|
|
}
|