xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/2009-02-08-CoalescerBug.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86
2*9880d681SAndroid Build Coastguard Worker; PR3486
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdefine i32 @foo(i8 signext %p_26) nounwind {
5*9880d681SAndroid Build Coastguard Workerentry:
6*9880d681SAndroid Build Coastguard Worker	%0 = icmp eq i8 %p_26, 0		; <i1> [#uses=2]
7*9880d681SAndroid Build Coastguard Worker	%or.cond = or i1 false, %0		; <i1> [#uses=2]
8*9880d681SAndroid Build Coastguard Worker	%iftmp.1.0 = zext i1 %or.cond to i16		; <i16> [#uses=1]
9*9880d681SAndroid Build Coastguard Worker	br i1 %0, label %bb.i, label %bar.exit
10*9880d681SAndroid Build Coastguard Worker
11*9880d681SAndroid Build Coastguard Workerbb.i:		; preds = %entry
12*9880d681SAndroid Build Coastguard Worker	%1 = zext i1 %or.cond to i32		; <i32> [#uses=1]
13*9880d681SAndroid Build Coastguard Worker	%2 = sdiv i32 %1, 0		; <i32> [#uses=1]
14*9880d681SAndroid Build Coastguard Worker	%3 = trunc i32 %2 to i16		; <i16> [#uses=1]
15*9880d681SAndroid Build Coastguard Worker	br label %bar.exit
16*9880d681SAndroid Build Coastguard Worker
17*9880d681SAndroid Build Coastguard Workerbar.exit:		; preds = %bb.i, %entry
18*9880d681SAndroid Build Coastguard Worker	%4 = phi i16 [ %3, %bb.i ], [ %iftmp.1.0, %entry ]		; <i16> [#uses=1]
19*9880d681SAndroid Build Coastguard Worker	%5 = trunc i16 %4 to i8		; <i8> [#uses=1]
20*9880d681SAndroid Build Coastguard Worker	%6 = sext i8 %5 to i32		; <i32> [#uses=1]
21*9880d681SAndroid Build Coastguard Worker	ret i32 %6
22*9880d681SAndroid Build Coastguard Worker}
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