1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86-64 -mattr=+sse2 | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Worker; This test makes sure that the compiler does not crash with an 4*9880d681SAndroid Build Coastguard Worker; assertion failure when trying to fold a vector shift left 5*9880d681SAndroid Build Coastguard Worker; by immediate count if the type of the input vector is different 6*9880d681SAndroid Build Coastguard Worker; to the result type. 7*9880d681SAndroid Build Coastguard Worker; 8*9880d681SAndroid Build Coastguard Worker; This happens for example when lowering a shift left of a MVT::v16i8 vector. 9*9880d681SAndroid Build Coastguard Worker; This is custom lowered into the following sequence: 10*9880d681SAndroid Build Coastguard Worker; count << 5 11*9880d681SAndroid Build Coastguard Worker; A = VSHLI(MVT::v8i16, r & (char16)15, 4) 12*9880d681SAndroid Build Coastguard Worker; B = BITCAST MVT::v16i8, A 13*9880d681SAndroid Build Coastguard Worker; VSELECT(r, B, count); 14*9880d681SAndroid Build Coastguard Worker; count += count 15*9880d681SAndroid Build Coastguard Worker; C = VSHLI(MVT::v8i16, r & (char16)63, 2) 16*9880d681SAndroid Build Coastguard Worker; D = BITCAST MVT::v16i8, C 17*9880d681SAndroid Build Coastguard Worker; r = VSELECT(r, C, count); 18*9880d681SAndroid Build Coastguard Worker; count += count 19*9880d681SAndroid Build Coastguard Worker; VSELECT(r, r+r, count); 20*9880d681SAndroid Build Coastguard Worker; count = count << 5; 21*9880d681SAndroid Build Coastguard Worker; 22*9880d681SAndroid Build Coastguard Worker; Where 'r' is a vector of type MVT::v16i8, and 23*9880d681SAndroid Build Coastguard Worker; 'count' is the vector shift count. 24*9880d681SAndroid Build Coastguard Worker 25*9880d681SAndroid Build Coastguard Workerdefine <16 x i8> @do_not_crash(i8*, i32*, i64*, i32, i64, i8) { 26*9880d681SAndroid Build Coastguard Workerentry: 27*9880d681SAndroid Build Coastguard Worker store i8 %5, i8* %0 28*9880d681SAndroid Build Coastguard Worker %L5 = load i8, i8* %0 29*9880d681SAndroid Build Coastguard Worker %I8 = insertelement <16 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, i8 %L5, i32 7 30*9880d681SAndroid Build Coastguard Worker %B51 = shl <16 x i8> <i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1, i8 -1>, %I8 31*9880d681SAndroid Build Coastguard Worker ret <16 x i8> %B51 32*9880d681SAndroid Build Coastguard Worker} 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: do_not_crash 35*9880d681SAndroid Build Coastguard Worker; CHECK: ret 36*9880d681SAndroid Build Coastguard Worker 37