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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; Test shortening of NILL to NILF when the result is used as a shift amount.3;4; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s5 6; Test logical shift right.7define i32 @f1(i32 %a, i32 %sh) {8; CHECK-LABEL: f1:9; CHECK: # %bb.0:10; CHECK-NEXT: nill %r3, 3111; CHECK-NEXT: srl %r2, 0(%r3)12; CHECK-NEXT: br %r1413 %and = and i32 %sh, 3114 %shift = lshr i32 %a, %and15 ret i32 %shift16}17 18; Test arithmetic shift right.19define i32 @f2(i32 %a, i32 %sh) {20; CHECK-LABEL: f2:21; CHECK: # %bb.0:22; CHECK-NEXT: nill %r3, 3123; CHECK-NEXT: sra %r2, 0(%r3)24; CHECK-NEXT: br %r1425 %and = and i32 %sh, 3126 %shift = ashr i32 %a, %and27 ret i32 %shift28}29 30; Test shift left.31define i32 @f3(i32 %a, i32 %sh) {32; CHECK-LABEL: f3:33; CHECK: # %bb.0:34; CHECK-NEXT: nill %r3, 3135; CHECK-NEXT: sll %r2, 0(%r3)36; CHECK-NEXT: br %r1437 %and = and i32 %sh, 3138 %shift = shl i32 %a, %and39 ret i32 %shift40}41 42; Test 64-bit logical shift right.43define i64 @f4(i64 %a, i64 %sh) {44; CHECK-LABEL: f4:45; CHECK: # %bb.0:46; CHECK-NEXT: nill %r3, 3147; CHECK-NEXT: srlg %r2, %r2, 0(%r3)48; CHECK-NEXT: br %r1449 %and = and i64 %sh, 3150 %shift = lshr i64 %a, %and51 ret i64 %shift52}53 54; Test 64-bit arithmetic shift right.55define i64 @f5(i64 %a, i64 %sh) {56; CHECK-LABEL: f5:57; CHECK: # %bb.0:58; CHECK-NEXT: nill %r3, 3159; CHECK-NEXT: srag %r2, %r2, 0(%r3)60; CHECK-NEXT: br %r1461 %and = and i64 %sh, 3162 %shift = ashr i64 %a, %and63 ret i64 %shift64}65 66; Test 64-bit shift left.67define i64 @f6(i64 %a, i64 %sh) {68; CHECK-LABEL: f6:69; CHECK: # %bb.0:70; CHECK-NEXT: nill %r3, 3171; CHECK-NEXT: sllg %r2, %r2, 0(%r3)72; CHECK-NEXT: br %r1473 %and = and i64 %sh, 3174 %shift = shl i64 %a, %and75 ret i64 %shift76}77 78; Test shift with negative 32-bit value.79define i32 @f8(i32 %a, i32 %sh, i32 %test) {80; CHECK-LABEL: f8:81; CHECK: # %bb.0:82; CHECK-NEXT: nill %r3, 6552983; CHECK-NEXT: sll %r2, 0(%r3)84; CHECK-NEXT: br %r1485 %and = and i32 %sh, -786 %shift = shl i32 %a, %and87 88 ret i32 %shift89}90 91; Test shift with negative 64-bit value.92define i64 @f9(i64 %a, i64 %sh, i64 %test) {93; CHECK-LABEL: f9:94; CHECK: # %bb.0:95; CHECK-NEXT: nill %r3, 6552996; CHECK-NEXT: sllg %r2, %r2, 0(%r3)97; CHECK-NEXT: br %r1498 %and = and i64 %sh, -799 %shift = shl i64 %a, %and100 101 ret i64 %shift102}103