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1; NOTE: This test verifies that a redundant load immediate of zero is folded2; NOTE: from its use in an isel and deleted as it is no longer in use.3; RUN: llc -mcpu=pwr9 -mtriple=powerpc64le-unknown-linux-gnu \4; RUN: -ppc-asm-full-reg-names -verify-machineinstrs < %s | FileCheck %s5; RUN: llc -mcpu=pwr9 -mtriple=powerpc64-unknown-linux-gnu \6; RUN: -ppc-asm-full-reg-names -verify-machineinstrs < %s | FileCheck %s7 8%0 = type { i32, i16 }9 10@val = common dso_local local_unnamed_addr global ptr null, align 811 12define dso_local signext i32 @redunLoadImm(ptr %arg) {13; CHECK-LABEL: redunLoadImm:14; verify that the load immediate has been folded into the isel and deleted15; CHECK-NOT: li r[[REG1:[0-9]+]], 016; CHECK: iseleq r[[REG2:[0-9]+]], 0, r[[REG3:[0-9]+]]17 18bb:19 %tmp = icmp eq ptr %arg, null20 br i1 %tmp, label %bb9, label %bb121 22bb1: ; preds = %bb23 %tmp2 = getelementptr inbounds %0, ptr %arg, i64 0, i32 124 br label %bb325 26bb3: ; preds = %bb3, %bb127 %tmp4 = load i16, ptr %tmp2, align 428 %tmp5 = sext i16 %tmp4 to i6429 %tmp6 = getelementptr inbounds %0, ptr %arg, i64 %tmp530 %tmp7 = icmp eq i16 %tmp4, 031 %tmp8 = select i1 %tmp7, ptr null, ptr %tmp632 store ptr %tmp8, ptr @val, align 833 br label %bb334 35bb9: ; preds = %bb36 %tmp10 = load ptr, ptr @val, align 837 %tmp12 = load i32, ptr %tmp10, align 438 ret i32 %tmp1239}40