1*9880d681SAndroid Build Coastguard Worker; RUN: llc -march=x86 -stop-after expand-isel-pseudos <%s 2>&1 | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" 4*9880d681SAndroid Build Coastguard Workertarget triple = "i386-unknown-linux-gnu" 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; This test checks to make sure the lshr in %then1 block gets expanded using 7*9880d681SAndroid Build Coastguard Worker; GR16_ABCD pattern rather than GR32_ABCD pattern. By using the 16-bit pattern 8*9880d681SAndroid Build Coastguard Worker; this doesn't make the register liveness information look like the whole 9*9880d681SAndroid Build Coastguard Worker; 32-bit register is a live value, and allows generally better live register 10*9880d681SAndroid Build Coastguard Worker; analysis. 11*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: bb.1.then1: 12*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: IMPLICIT_DEF 13*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: INSERT_SUBREG 14*9880d681SAndroid Build Coastguard Worker; CHECK: sub_8bit_hi 15*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: bb.2.endif1: 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerdefine i16 @foo4(i32 %prec, i8 *%dst, i16 *%src) { 18*9880d681SAndroid Build Coastguard Workerentry: 19*9880d681SAndroid Build Coastguard Worker %cnd = icmp ne i32 %prec, 0 20*9880d681SAndroid Build Coastguard Worker %t0 = load i16, i16 *%src, align 2 21*9880d681SAndroid Build Coastguard Worker br i1 %cnd, label %then1, label %endif1 22*9880d681SAndroid Build Coastguard Worker 23*9880d681SAndroid Build Coastguard Workerthen1: 24*9880d681SAndroid Build Coastguard Worker %shr = lshr i16 %t0, 8 25*9880d681SAndroid Build Coastguard Worker %conv = trunc i16 %shr to i8 26*9880d681SAndroid Build Coastguard Worker store i8 %conv, i8 *%dst, align 1 27*9880d681SAndroid Build Coastguard Worker br label %endif1 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Workerendif1: 30*9880d681SAndroid Build Coastguard Worker %t2 = phi i16 [0, %then1], [%t0, %entry] 31*9880d681SAndroid Build Coastguard Worker ret i16 %t2 32*9880d681SAndroid Build Coastguard Worker} 33