101 lines
3.0 KiB
LLVM
101 lines
3.0 KiB
LLVM
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z15 | FileCheck %s
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;
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; Test that a reload of a LOCGR/SELGR operand can be folded into a LOC
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; instruction.
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declare i64 @foo()
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declare i32 @foo32()
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; Check that conditional loads of spilled values can use LOCG rather than LOCGR.
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define void @f0(i64 *%ptr0, i64 *%dstPtr) {
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; CHECK-LABEL: f0:
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; CHECK: brasl %r14, foo@PLT
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; CHECK: locglh {{.*}} # 8-byte Folded Reload
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; CHECK: br %r14
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%ptr1 = getelementptr i64, i64 *%ptr0, i64 2
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%ptr2 = getelementptr i64, i64 *%ptr0, i64 4
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%ptr3 = getelementptr i64, i64 *%ptr0, i64 6
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%ptr4 = getelementptr i64, i64 *%ptr0, i64 8
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%ptr5 = getelementptr i64, i64 *%ptr0, i64 10
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%ptr6 = getelementptr i64, i64 *%ptr0, i64 12
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%ptr7 = getelementptr i64, i64 *%ptr0, i64 14
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%ptr8 = getelementptr i64, i64 *%ptr0, i64 16
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%ptr9 = getelementptr i64, i64 *%ptr0, i64 18
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%val0 = load i64, i64 *%ptr0
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%val1 = load i64, i64 *%ptr1
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%val2 = load i64, i64 *%ptr2
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%val3 = load i64, i64 *%ptr3
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%val4 = load i64, i64 *%ptr4
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%val5 = load i64, i64 *%ptr5
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%val6 = load i64, i64 *%ptr6
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%val7 = load i64, i64 *%ptr7
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%val8 = load i64, i64 *%ptr8
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%val9 = load i64, i64 *%ptr9
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%ret = call i64 @foo()
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%add0 = add i64 %ret, %val0
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%add1 = add i64 %add0, %val1
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%add2 = add i64 %add1, %val2
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%add3 = add i64 %add2, %val3
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%add4 = add i64 %add3, %val4
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%add5 = add i64 %add4, %val5
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%add6 = add i64 %add5, %val6
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%add7 = add i64 %add6, %val7
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%add8 = add i64 %add7, %val8
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%cond = icmp eq i64 %add7, %add8
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%res = select i1 %cond, i64 %add8, i64 %val9
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store i64 %res, i64* %dstPtr
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ret void
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}
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; Check that conditional loads of spilled values can use LOC rather than LOCR.
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define void @f1(i32 *%ptr0, i32 *%dstPtr) {
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; CHECK-LABEL: f1:
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; CHECK: brasl %r14, foo32@PLT
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; CHECK: loclh {{.*}} # 4-byte Folded Reload
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; CHECK: br %r14
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%ptr1 = getelementptr i32, i32 *%ptr0, i32 2
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%ptr2 = getelementptr i32, i32 *%ptr0, i32 4
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%ptr3 = getelementptr i32, i32 *%ptr0, i32 6
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%ptr4 = getelementptr i32, i32 *%ptr0, i32 8
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%ptr5 = getelementptr i32, i32 *%ptr0, i32 10
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%ptr6 = getelementptr i32, i32 *%ptr0, i32 12
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%ptr7 = getelementptr i32, i32 *%ptr0, i32 14
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%ptr8 = getelementptr i32, i32 *%ptr0, i32 16
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%ptr9 = getelementptr i32, i32 *%ptr0, i32 18
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%val0 = load i32, i32 *%ptr0
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%val1 = load i32, i32 *%ptr1
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%val2 = load i32, i32 *%ptr2
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%val3 = load i32, i32 *%ptr3
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%val4 = load i32, i32 *%ptr4
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%val5 = load i32, i32 *%ptr5
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%val6 = load i32, i32 *%ptr6
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%val7 = load i32, i32 *%ptr7
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%val8 = load i32, i32 *%ptr8
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%val9 = load i32, i32 *%ptr9
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%ret = call i32 @foo32()
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%add0 = add i32 %ret, %val0
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%add1 = add i32 %add0, %val1
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%add2 = add i32 %add1, %val2
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%add3 = add i32 %add2, %val3
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%add4 = add i32 %add3, %val4
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%add5 = add i32 %add4, %val5
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%add6 = add i32 %add5, %val6
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%add7 = add i32 %add6, %val7
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%add8 = add i32 %add7, %val8
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%cond = icmp eq i32 %add7, %add8
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%res = select i1 %cond, i32 %add8, i32 %val9
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store i32 %res, i32* %dstPtr
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ret void
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}
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