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1; Test proper extension of 8-bit/16-bit cmpxchg.2;3; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s4 5; CHECK-LABEL: f16; CHECK: crjlh7; CHECK-NOT: llcr8; CHECK-NOT: cr9; CHECK: llgfr %r2, [[RES:%r[0-9]+]]10; CHECK-NOT: llcr11; CHECK-NOT: cr12define zeroext i8 @f1(ptr nocapture, i8 zeroext, i8 zeroext) {13 %cx = cmpxchg ptr %0, i8 %1, i8 %2 seq_cst seq_cst14 %res = extractvalue { i8, i1 } %cx, 015 ret i8 %res16}17 18; CHECK-LABEL: f219; CHECK: crjlh20; CHECK-NOT: llhr21; CHECK-NOT: cr22; CHECK: llgfr %r2, [[RES:%r[0-9]+]]23; CHECK-NOT: llhr24; CHECK-NOT: cr25define zeroext i16 @f2(ptr nocapture, i16 zeroext, i16 zeroext) {26 %cx = cmpxchg ptr %0, i16 %1, i16 %2 seq_cst seq_cst27 %res = extractvalue { i16, i1 } %cx, 028 ret i16 %res29}30 31; CHECK-LABEL: f332; CHECK: crjlh33; CHECK-NOT: llcr34; CHECK-NOT: cr35; CHECK: lgbr %r2, [[RES:%r[0-9]+]]36; CHECK-NOT: llcr37; CHECK-NOT: cr38define signext i8 @f3(ptr nocapture, i8 signext, i8 signext) {39 %cx = cmpxchg ptr %0, i8 %1, i8 %2 seq_cst seq_cst40 %res = extractvalue { i8, i1 } %cx, 041 ret i8 %res42}43 44; CHECK-LABEL: f445; CHECK: crjlh46; CHECK-NOT: llhr47; CHECK-NOT: cr48; CHECK: lghr %r2, [[RES:%r[0-9]+]]49; CHECK-NOT: llhr50; CHECK-NOT: cr51define signext i16 @f4(ptr nocapture, i16 signext, i16 signext) {52 %cx = cmpxchg ptr %0, i16 %1, i16 %2 seq_cst seq_cst53 %res = extractvalue { i16, i1 } %cx, 054 ret i16 %res55}56