minix/external/bsd/llvm/dist/llvm/test/CodeGen/ARM/ifconv-kills.ll
Lionel Sambuc 0a6a1f1d05 NetBSD re-synchronization of the source tree
This brings our tree to NetBSD 7.0, as found on -current on the
10-10-2015.

This updates:
 - LLVM to 3.6.1
 - GCC to GCC 5.1
 - Replace minix/commands/zdump with usr.bin/zdump
 - external/bsd/libelf has moved to /external/bsd/elftoolchain/
 - Import ctwm
 - Drop sprintf from libminc

Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
2016-01-13 20:32:14 +01:00

31 lines
895 B
LLVM

; RUN: llc -mtriple arm-eabi -mcpu swift -verify-machineinstrs %s -o /dev/null
declare i32 @f(i32 %p0, i32 %p1)
define i32 @foo(i32* %ptr) {
entry:
%cmp = icmp ne i32* %ptr, null
br i1 %cmp, label %if.then, label %if.else
; present something which can be easily if-converted
if.then:
; %R0 should be killed here
%valt = load i32* %ptr, align 4
br label %return
if.else:
; %R0 should be killed here, however after if-conversion the %R0 kill
; has to be removed because if.then will follow after this and still
; read it.
%addr = getelementptr inbounds i32* %ptr, i32 4
%vale = load i32* %addr, align 4
br label %return
return:
%phival = phi i32 [ %valt, %if.then ], [ %vale, %if.else ]
; suggest to bring %phival/%valt/%vale into %R1 (because otherwise there
; will be no kills in if.then/if.else)
%retval = call i32 @f (i32 0, i32 %phival)
ret i32 %retval
}