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1; RUN: llc -stop-after finalize-isel < %s 2>&1 | FileCheck %s2 3target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"4target triple = "i386-unknown-linux-gnu"5 6; This test checks to make sure the lshr in %then1 block gets expanded using7; GR16_ABCD pattern rather than GR32_ABCD pattern. By using the 16-bit pattern8; this doesn't make the register liveness information look like the whole9; 32-bit register is a live value, and allows generally better live register10; analysis.11; CHECK-LABEL: bb.1.then1:12; CHECK-NOT: IMPLICIT_DEF13; CHECK-NOT: INSERT_SUBREG14; CHECK: sub_8bit_hi15; CHECK-LABEL: bb.2.endif1:16 17define i16 @foo4(i32 %prec, ptr%dst, ptr%src) {18entry:19 %cnd = icmp ne i32 %prec, 020 %t0 = load i16, ptr%src, align 221 br i1 %cnd, label %then1, label %endif122 23then1:24 %shr = lshr i16 %t0, 825 %conv = trunc i16 %shr to i826 store i8 %conv, ptr%dst, align 127 br label %endif128 29endif1:30 %t2 = phi i16 [0, %then1], [%t0, %entry]31 ret i16 %t232}33