mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-15 20:29:48 +00:00
49 lines
1.5 KiB
LLVM
49 lines
1.5 KiB
LLVM
|
; RUN: opt -simplifycfg -S %s | FileCheck %s
|
||
|
|
; rdar://15268442
|
||
|
|
|
||
|
|
target datalayout = "e-p:64:64:64-S128-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f16:16:16-f32:32:32-f64:64:64-f128:128:128-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
|
||
|
|
target triple = "x86_64-apple-darwin12.0.0"
|
||
|
|
|
||
|
|
; CHECK-LABEL: define i3 @coveredswitch_test(
|
||
|
|
; CHECK: entry:
|
||
|
|
; CHECK-NEXT: sub i3 %input, -4
|
||
|
|
; CHECK-NEXT: zext i3 %switch.tableidx to i24
|
||
|
|
; CHECK-NEXT: mul i24 %switch.cast, 3
|
||
|
|
; CHECK-NEXT: lshr i24 7507338, %switch.shiftamt
|
||
|
|
; CHECK-NEXT: trunc i24 %switch.downshift to i3
|
||
|
|
; CHECK-NEXT: ret i3 %switch.masked
|
||
|
|
|
||
|
|
define i3 @coveredswitch_test(i3 %input) {
|
||
|
|
entry:
|
||
|
|
switch i3 %input, label %bb8 [
|
||
|
|
i3 0, label %bb7
|
||
|
|
i3 1, label %bb
|
||
|
|
i3 2, label %bb3
|
||
|
|
i3 3, label %bb4
|
||
|
|
i3 4, label %bb5
|
||
|
|
i3 5, label %bb6
|
||
|
|
]
|
||
|
|
|
||
|
|
bb: ; preds = %entry
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb3: ; preds = %entry
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb4: ; preds = %entry
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb5: ; preds = %entry
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb6: ; preds = %entry
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb7: ; preds = %entry
|
||
|
|
br label %bb8
|
||
|
|
|
||
|
|
bb8: ; preds = %bb7, %bb6, %bb5, %bb4, %bb3, %bb, %entry
|
||
|
|
%result = phi i3 [ 0, %bb7 ], [ 1, %bb6 ], [ 2, %bb5 ], [ 3, %bb4 ], [ 4, %bb3 ], [ 5, %bb ], [ 6, %entry ]
|
||
|
|
ret i3 %result
|
||
|
|
}
|