OSchip
/
llvm-project
mirror of https://github.com/THU-DSP-LAB/llvm-project.git
13
0
Fork 6
Code Issues Packages Projects Releases Wiki Activity

Regression test for live range bug for call arguments. 

llvm-svn: 3962
This commit is contained in:
Vikram S. Adve 2002-09-28 16:51:47 +00:00
parent 34d16d64b0
commit d92bd6f951
2 changed files with 60 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
llvm/test/Regression/LLC/badCallArgLR.llvm.ll Normal file
View File

@ -0,0 +1,30 @@
; This caused a problem because the argument of a call was defined by
; the return value of another call that appears later in the code.
; When processing the first call, the second call has not yet been processed
; so no LiveRange has been created for its return value.
;
; llc dies in UltraSparcRegInfo::suggestRegs4CallArgs() with:
; ERROR: In call instr, no LR for arg: 0x1009e0740
;
implementation ; Functions:
declare int %getInt(int);
int %main(int %argc, sbyte** %argv) {
bb0: ;[#uses=0]
br label %bb2
bb1:
%reg222 = call int (int)* %getInt(int %reg218) ;; ARG #1 HAS NO LR
%reg110 = add int %reg222, 1
%b = setle int %reg110, 0
br bool %b, label %bb2, label %bb3
bb2:
%reg218 = call int (int)* %getInt(int %argc) ;; THIS CALL NOT YET SEEN
br label %bb1
bb3:
ret int %reg110
}

30
llvm/test/Regression/LLC/badCallArgLRLLVM.ll Normal file
View File

@ -0,0 +1,30 @@
; This caused a problem because the argument of a call was defined by
; the return value of another call that appears later in the code.
; When processing the first call, the second call has not yet been processed
; so no LiveRange has been created for its return value.
;
; llc dies in UltraSparcRegInfo::suggestRegs4CallArgs() with:
; ERROR: In call instr, no LR for arg: 0x1009e0740
;
implementation ; Functions:
declare int %getInt(int);
int %main(int %argc, sbyte** %argv) {
bb0: ;[#uses=0]
br label %bb2
bb1:
%reg222 = call int (int)* %getInt(int %reg218) ;; ARG #1 HAS NO LR
%reg110 = add int %reg222, 1
%b = setle int %reg110, 0
br bool %b, label %bb2, label %bb3
bb2:
%reg218 = call int (int)* %getInt(int %argc) ;; THIS CALL NOT YET SEEN
br label %bb1
bb3:
ret int %reg110
}