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Diffstat (limited to 'test/CodeGen/SystemZ/int-div-04.ll')
-rw-r--r-- | test/CodeGen/SystemZ/int-div-04.ll | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/int-div-04.ll b/test/CodeGen/SystemZ/int-div-04.ll index 3f72be9..b2710a1 100644 --- a/test/CodeGen/SystemZ/int-div-04.ll +++ b/test/CodeGen/SystemZ/int-div-04.ll @@ -2,6 +2,8 @@ ; ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s +declare i64 @foo() + ; Testg register division. The result is in the second of the two registers. define void @f1(i64 %dummy, i64 %a, i64 %b, i64 *%dest) { ; CHECK: f1: @@ -152,3 +154,49 @@ define i64 @f12(i64 %dummy, i64 %a, i64 %src, i64 %index) { %rem = srem i64 %a, %b ret i64 %rem } + +; Check that divisions of spilled values can use DSG rather than DSGR. +define i64 @f13(i64 *%ptr0) { +; CHECK: f13: +; CHECK: brasl %r14, foo@PLT +; CHECK: dsg {{%r[0-9]+}}, 160(%r15) +; CHECK: br %r14 + %ptr1 = getelementptr i64 *%ptr0, i64 2 + %ptr2 = getelementptr i64 *%ptr0, i64 4 + %ptr3 = getelementptr i64 *%ptr0, i64 6 + %ptr4 = getelementptr i64 *%ptr0, i64 8 + %ptr5 = getelementptr i64 *%ptr0, i64 10 + %ptr6 = getelementptr i64 *%ptr0, i64 12 + %ptr7 = getelementptr i64 *%ptr0, i64 14 + %ptr8 = getelementptr i64 *%ptr0, i64 16 + %ptr9 = getelementptr i64 *%ptr0, i64 18 + %ptr10 = getelementptr i64 *%ptr0, i64 20 + + %val0 = load i64 *%ptr0 + %val1 = load i64 *%ptr1 + %val2 = load i64 *%ptr2 + %val3 = load i64 *%ptr3 + %val4 = load i64 *%ptr4 + %val5 = load i64 *%ptr5 + %val6 = load i64 *%ptr6 + %val7 = load i64 *%ptr7 + %val8 = load i64 *%ptr8 + %val9 = load i64 *%ptr9 + %val10 = load i64 *%ptr10 + + %ret = call i64 @foo() + + %div0 = sdiv i64 %ret, %val0 + %div1 = sdiv i64 %div0, %val1 + %div2 = sdiv i64 %div1, %val2 + %div3 = sdiv i64 %div2, %val3 + %div4 = sdiv i64 %div3, %val4 + %div5 = sdiv i64 %div4, %val5 + %div6 = sdiv i64 %div5, %val6 + %div7 = sdiv i64 %div6, %val7 + %div8 = sdiv i64 %div7, %val8 + %div9 = sdiv i64 %div8, %val9 + %div10 = sdiv i64 %div9, %val10 + + ret i64 %div10 +} |