23 lines
965 B
LLVM
23 lines
965 B
LLVM
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; RUN: llc -verify-machineinstrs -mtriple=s390x-linux-gnu < %s -debug -stop-after=machineverifier 2>&1 | FileCheck %s
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; REQUIRES: asserts
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define i128 @func1({ i128, i8* } %struct) {
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; Verify that we get a combine on the build_pair, creating a LD8 load somewhere
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; between "Initial selection DAG" and "Optimized lowered selection DAG".
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; The target is big-endian, and stack grows towards higher addresses,
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; so we expect the LD8 to load from the address used in the original HIBITS
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; load.
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; CHECK-LABEL: Initial selection DAG:
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; CHECK: [[LOBITS:t[0-9]+]]: i64,ch = load<(load 8)>
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; CHECK: [[HIBITS:t[0-9]+]]: i64,ch = load<(load 8)>
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; CHECK: Combining: t{{[0-9]+}}: i128 = build_pair [[LOBITS]], [[HIBITS]]
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; CHECK-NEXT: Creating new node
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; CHECK-SAME: load<(load 16, align 8)>
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; CHECK-NEXT: into
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; CHECK-SAME: load<(load 16, align 8)>
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; CHECK-LABEL: Optimized lowered selection DAG:
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%result = extractvalue {i128, i8* } %struct, 0
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ret i128 %result
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}
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