xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/2008-10-13-CoalescerBug.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86
2*9880d681SAndroid Build Coastguard Worker; PR2775
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine i32 @func_77(i8 zeroext %p_79) nounwind {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker	%0 = tail call i32 (...) @func_43(i32 1) nounwind		; <i32> [#uses=1]
7*9880d681SAndroid Build Coastguard Worker	%1 = icmp eq i32 %0, 0		; <i1> [#uses=1]
8*9880d681SAndroid Build Coastguard Worker	br i1 %1, label %bb3, label %bb
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerbb:		; preds = %entry
11*9880d681SAndroid Build Coastguard Worker	br label %bb3
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Workerbb3:		; preds = %bb, %entry
14*9880d681SAndroid Build Coastguard Worker	%p_79_addr.0 = phi i8 [ 0, %bb ], [ %p_79, %entry ]		; <i8> [#uses=1]
15*9880d681SAndroid Build Coastguard Worker	%2 = zext i8 %p_79_addr.0 to i32		; <i32> [#uses=2]
16*9880d681SAndroid Build Coastguard Worker	%3 = zext i1 false to i32		; <i32> [#uses=2]
17*9880d681SAndroid Build Coastguard Worker	%4 = tail call i32 (...) @rshift_u_s(i32 1) nounwind		; <i32> [#uses=0]
18*9880d681SAndroid Build Coastguard Worker	%5 = lshr i32 %2, %2		; <i32> [#uses=3]
19*9880d681SAndroid Build Coastguard Worker	%6 = icmp eq i32 0, 0		; <i1> [#uses=1]
20*9880d681SAndroid Build Coastguard Worker	br i1 %6, label %bb6, label %bb9
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerbb6:		; preds = %bb3
23*9880d681SAndroid Build Coastguard Worker	%7 = ashr i32 %5, %3		; <i32> [#uses=1]
24*9880d681SAndroid Build Coastguard Worker	%8 = icmp eq i32 %7, 0		; <i1> [#uses=1]
25*9880d681SAndroid Build Coastguard Worker	%9 = select i1 %8, i32 %3, i32 0		; <i32> [#uses=1]
26*9880d681SAndroid Build Coastguard Worker	%. = shl i32 %5, %9		; <i32> [#uses=1]
27*9880d681SAndroid Build Coastguard Worker	br label %bb9
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Workerbb9:		; preds = %bb6, %bb3
30*9880d681SAndroid Build Coastguard Worker	%.0 = phi i32 [ %., %bb6 ], [ %5, %bb3 ]		; <i32> [#uses=0]
31*9880d681SAndroid Build Coastguard Worker	br i1 false, label %return, label %bb10
32*9880d681SAndroid Build Coastguard Worker
33*9880d681SAndroid Build Coastguard Workerbb10:		; preds = %bb9
34*9880d681SAndroid Build Coastguard Worker	ret i32 undef
35*9880d681SAndroid Build Coastguard Worker
36*9880d681SAndroid Build Coastguard Workerreturn:		; preds = %bb9
37*9880d681SAndroid Build Coastguard Worker	ret i32 undef
38*9880d681SAndroid Build Coastguard Worker}
39*9880d681SAndroid Build Coastguard Worker
40*9880d681SAndroid Build Coastguard Workerdeclare i32 @func_43(...)
41*9880d681SAndroid Build Coastguard Worker
42*9880d681SAndroid Build Coastguard Workerdeclare i32 @rshift_u_s(...)
43