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1; Test variable-sized allocas and addresses based on them in cases where2; stack arguments are needed.3;4; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s5; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-A6; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-B7; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-C8; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-D9; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-FP10 11declare i64 @bar(ptr %a, ptr %b, ptr %c, ptr %d, ptr %e, i64 %f, i64 %g)12 13; Allocate %length bytes and take addresses based on the result.14; There are two stack arguments, so an offset of 160 + 2 * 8 == 17615; is added to the copy of %r15.16;17; NOTE: 'la %r0, 177(%r1)' is actually an expected fail as it would18; be better (and possible) to load into %r3 directly.19;20define i64 @f1(i64 %length, i64 %index) {21; FIXME: a better sequence would be:22;23; lgr %r1, %r1524; sgr %r1, %r225; nill %r1, 0xfff826; lgr %r15, %r127;28; CHECK-LABEL: f1:29; CHECK-DAG: la [[REG1:%r[0-5]]], 7(%r2)30; CHECK-DAG: nill [[REG1]], 6552831; CHECK-DAG: lgr [[REG2:%r[0-5]]], %r1532; CHECK: sgr [[REG2]], [[REG1]]33; CHECK: lgr %r15, [[REG2]]34;35; CHECK-A-LABEL: f1:36; CHECK-A-DAG: lgr %r15, %r137; CHECK-A-DAG: la %r2, 176(%r1)38;39; CHECK-B-LABEL: f1:40; CHECK-B: lgr %r15, %r141; CHECK-B: la %r0, 177(%r1)42;43; CHECK-C-LABEL: f1:44; CHECK-C: lgr %r15, %r145; CHECK-C: la %r4, 4095({{%r3,%r1|%r1,%r3}})46;47; CHECK-D-LABEL: f1:48; CHECK-D: lgr %r15, %r149; CHECK-D: lay %r5, 4096({{%r3,%r1|%r1,%r3}})50;51; CHECK-E-LABEL: f1:52; CHECK-E: lgr %r15, %r153; CHECK-E: lay %r6, 4271({{%r3,%r1|%r1,%r3}})54;55; CHECK-FP-LABEL: f1:56; CHECK-FP: lgr %r11, %r1557; CHECK-FP: lmg %r6, %r15, 224(%r11)58 %a = alloca i8, i64 %length59 %b = getelementptr i8, ptr %a, i64 160 %cindex = add i64 %index, 391961 %c = getelementptr i8, ptr %a, i64 %cindex62 %dindex = add i64 %index, 392063 %d = getelementptr i8, ptr %a, i64 %dindex64 %eindex = add i64 %index, 409565 %e = getelementptr i8, ptr %a, i64 %eindex66 %count = call i64 @bar(ptr %a, ptr %b, ptr %c, ptr %d, ptr %e, i64 0, i64 0)67 %res = add i64 %count, 168 ret i64 %res69}70