mirror of
https://github.com/RPCSX/llvm.git
synced 2024-11-24 20:29:53 +00:00
4e54f41d6c
The jump doesn't really kill the registers, the following call does but we never get back anyway. This avoids some verify-machineinstrs problems when TAILJUMPs are if-converted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191962 91177308-0d34-0410-b5e6-96231b3b80d8
36 lines
997 B
LLVM
36 lines
997 B
LLVM
; RUN: llc < %s -mtriple=thumbv7s-apple-ios6.0.0 -verify-machineinstrs
|
|
|
|
%union.opcode = type { i32 }
|
|
|
|
@opcode = external global %union.opcode, align 4
|
|
|
|
; Function Attrs: nounwind ssp
|
|
define i32 @sfu() {
|
|
entry:
|
|
%bf.load = load i32* getelementptr inbounds (%union.opcode* @opcode, i32 0, i32 0), align 4
|
|
%bf.lshr = lshr i32 %bf.load, 26
|
|
%bf.clear = and i32 %bf.lshr, 7
|
|
switch i32 %bf.clear, label %return [
|
|
i32 0, label %sw.bb
|
|
i32 1, label %sw.bb1
|
|
]
|
|
|
|
sw.bb: ; preds = %entry
|
|
%call = tail call i32 @func0()
|
|
br label %return
|
|
|
|
sw.bb1: ; preds = %entry
|
|
%call2 = tail call i32 @func1()
|
|
br label %return
|
|
|
|
return: ; preds = %sw.bb1, %sw.bb, %entry
|
|
%retval.0 = phi i32 [ %call2, %sw.bb1 ], [ %call, %sw.bb ], [ -1, %entry ]
|
|
ret i32 %retval.0
|
|
}
|
|
|
|
; Function Attrs: nounwind ssp
|
|
declare i32 @func0()
|
|
|
|
; Function Attrs: nounwind ssp
|
|
declare i32 @func1()
|