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llvm/test/CodeGen/SystemZ/frame-19.ll
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Ulrich Weigand d3bcee4790 [SystemZ] Support vector load/store alignment hints 
Vector load/store instructions support an optional alignment field
that the compiler can use to provide known alignment info to the
hardware.  If the field is used (and the information is correct),
the hardware may be able (on some models) to perform faster memory
accesses than otherwise.

This patch adds support for alignment hints in the assembler and
disassembler, and fills in known alignment during codegen.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363806 91177308-0d34-0410-b5e6-96231b3b80d8
2019-06-19 14:20:00 +00:00

315 lines
13 KiB
LLVM
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; Test spilling of vector registers.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
; We need to allocate a 16-byte spill slot and save the 8 call-saved FPRs.
; The frame size should be exactly 160 + 16 + 8 * 8 = 240.
define void @f1(<16 x i8> *%ptr) {
; CHECK-LABEL: f1:
; CHECK: aghi %r15, -240
; CHECK-DAG: std %f8,
; CHECK-DAG: std %f9,
; CHECK-DAG: std %f10,
; CHECK-DAG: std %f11,
; CHECK-DAG: std %f12,
; CHECK-DAG: std %f13,
; CHECK-DAG: std %f14,
; CHECK-DAG: std %f15,
; CHECK: vst {{%v[0-9]+}}, 160(%r15), 3
; CHECK: vl {{%v[0-9]+}}, 160(%r15), 3
; CHECK-DAG: ld %f8,
; CHECK-DAG: ld %f9,
; CHECK-DAG: ld %f10,
; CHECK-DAG: ld %f11,
; CHECK-DAG: ld %f12,
; CHECK-DAG: ld %f13,
; CHECK-DAG: ld %f14,
; CHECK-DAG: ld %f15,
; CHECK: aghi %r15, 240
; CHECK: br %r14
%v0 = load volatile <16 x i8>, <16 x i8> *%ptr
%v1 = load volatile <16 x i8>, <16 x i8> *%ptr
%v2 = load volatile <16 x i8>, <16 x i8> *%ptr
%v3 = load volatile <16 x i8>, <16 x i8> *%ptr
%v4 = load volatile <16 x i8>, <16 x i8> *%ptr
%v5 = load volatile <16 x i8>, <16 x i8> *%ptr
%v6 = load volatile <16 x i8>, <16 x i8> *%ptr
%v7 = load volatile <16 x i8>, <16 x i8> *%ptr
%v8 = load volatile <16 x i8>, <16 x i8> *%ptr
%v9 = load volatile <16 x i8>, <16 x i8> *%ptr
%v10 = load volatile <16 x i8>, <16 x i8> *%ptr
%v11 = load volatile <16 x i8>, <16 x i8> *%ptr
%v12 = load volatile <16 x i8>, <16 x i8> *%ptr
%v13 = load volatile <16 x i8>, <16 x i8> *%ptr
%v14 = load volatile <16 x i8>, <16 x i8> *%ptr
%v15 = load volatile <16 x i8>, <16 x i8> *%ptr
%v16 = load volatile <16 x i8>, <16 x i8> *%ptr
%v17 = load volatile <16 x i8>, <16 x i8> *%ptr
%v18 = load volatile <16 x i8>, <16 x i8> *%ptr
%v19 = load volatile <16 x i8>, <16 x i8> *%ptr
%v20 = load volatile <16 x i8>, <16 x i8> *%ptr
%v21 = load volatile <16 x i8>, <16 x i8> *%ptr
%v22 = load volatile <16 x i8>, <16 x i8> *%ptr
%v23 = load volatile <16 x i8>, <16 x i8> *%ptr
%v24 = load volatile <16 x i8>, <16 x i8> *%ptr
%v25 = load volatile <16 x i8>, <16 x i8> *%ptr
%v26 = load volatile <16 x i8>, <16 x i8> *%ptr
%v27 = load volatile <16 x i8>, <16 x i8> *%ptr
%v28 = load volatile <16 x i8>, <16 x i8> *%ptr
%v29 = load volatile <16 x i8>, <16 x i8> *%ptr
%v30 = load volatile <16 x i8>, <16 x i8> *%ptr
%v31 = load volatile <16 x i8>, <16 x i8> *%ptr
%vx = load volatile <16 x i8>, <16 x i8> *%ptr
store volatile <16 x i8> %vx, <16 x i8> *%ptr
store volatile <16 x i8> %v31, <16 x i8> *%ptr
store volatile <16 x i8> %v30, <16 x i8> *%ptr
store volatile <16 x i8> %v29, <16 x i8> *%ptr
store volatile <16 x i8> %v28, <16 x i8> *%ptr
store volatile <16 x i8> %v27, <16 x i8> *%ptr
store volatile <16 x i8> %v26, <16 x i8> *%ptr
store volatile <16 x i8> %v25, <16 x i8> *%ptr
store volatile <16 x i8> %v24, <16 x i8> *%ptr
store volatile <16 x i8> %v23, <16 x i8> *%ptr
store volatile <16 x i8> %v22, <16 x i8> *%ptr
store volatile <16 x i8> %v21, <16 x i8> *%ptr
store volatile <16 x i8> %v20, <16 x i8> *%ptr
store volatile <16 x i8> %v19, <16 x i8> *%ptr
store volatile <16 x i8> %v18, <16 x i8> *%ptr
store volatile <16 x i8> %v17, <16 x i8> *%ptr
store volatile <16 x i8> %v16, <16 x i8> *%ptr
store volatile <16 x i8> %v15, <16 x i8> *%ptr
store volatile <16 x i8> %v14, <16 x i8> *%ptr
store volatile <16 x i8> %v13, <16 x i8> *%ptr
store volatile <16 x i8> %v12, <16 x i8> *%ptr
store volatile <16 x i8> %v11, <16 x i8> *%ptr
store volatile <16 x i8> %v10, <16 x i8> *%ptr
store volatile <16 x i8> %v9, <16 x i8> *%ptr
store volatile <16 x i8> %v8, <16 x i8> *%ptr
store volatile <16 x i8> %v7, <16 x i8> *%ptr
store volatile <16 x i8> %v6, <16 x i8> *%ptr
store volatile <16 x i8> %v5, <16 x i8> *%ptr
store volatile <16 x i8> %v4, <16 x i8> *%ptr
store volatile <16 x i8> %v3, <16 x i8> *%ptr
store volatile <16 x i8> %v2, <16 x i8> *%ptr
store volatile <16 x i8> %v1, <16 x i8> *%ptr
store volatile <16 x i8> %v0, <16 x i8> *%ptr
ret void
}
; Like f1, but no 16-byte slot should be needed.
define void @f2(<16 x i8> *%ptr) {
; CHECK-LABEL: f2:
; CHECK: aghi %r15, -224
; CHECK-DAG: std %f8,
; CHECK-DAG: std %f9,
; CHECK-DAG: std %f10,
; CHECK-DAG: std %f11,
; CHECK-DAG: std %f12,
; CHECK-DAG: std %f13,
; CHECK-DAG: std %f14,
; CHECK-DAG: std %f15,
; CHECK-NOT: vst {{.*}}(%r15)
; CHECK-NOT: vl {{.*}}(%r15)
; CHECK-DAG: ld %f8,
; CHECK-DAG: ld %f9,
; CHECK-DAG: ld %f10,
; CHECK-DAG: ld %f11,
; CHECK-DAG: ld %f12,
; CHECK-DAG: ld %f13,
; CHECK-DAG: ld %f14,
; CHECK-DAG: ld %f15,
; CHECK: aghi %r15, 224
; CHECK: br %r14
%v0 = load volatile <16 x i8>, <16 x i8> *%ptr
%v1 = load volatile <16 x i8>, <16 x i8> *%ptr
%v2 = load volatile <16 x i8>, <16 x i8> *%ptr
%v3 = load volatile <16 x i8>, <16 x i8> *%ptr
%v4 = load volatile <16 x i8>, <16 x i8> *%ptr
%v5 = load volatile <16 x i8>, <16 x i8> *%ptr
%v6 = load volatile <16 x i8>, <16 x i8> *%ptr
%v7 = load volatile <16 x i8>, <16 x i8> *%ptr
%v8 = load volatile <16 x i8>, <16 x i8> *%ptr
%v9 = load volatile <16 x i8>, <16 x i8> *%ptr
%v10 = load volatile <16 x i8>, <16 x i8> *%ptr
%v11 = load volatile <16 x i8>, <16 x i8> *%ptr
%v12 = load volatile <16 x i8>, <16 x i8> *%ptr
%v13 = load volatile <16 x i8>, <16 x i8> *%ptr
%v14 = load volatile <16 x i8>, <16 x i8> *%ptr
%v15 = load volatile <16 x i8>, <16 x i8> *%ptr
%v16 = load volatile <16 x i8>, <16 x i8> *%ptr
%v17 = load volatile <16 x i8>, <16 x i8> *%ptr
%v18 = load volatile <16 x i8>, <16 x i8> *%ptr
%v19 = load volatile <16 x i8>, <16 x i8> *%ptr
%v20 = load volatile <16 x i8>, <16 x i8> *%ptr
%v21 = load volatile <16 x i8>, <16 x i8> *%ptr
%v22 = load volatile <16 x i8>, <16 x i8> *%ptr
%v23 = load volatile <16 x i8>, <16 x i8> *%ptr
%v24 = load volatile <16 x i8>, <16 x i8> *%ptr
%v25 = load volatile <16 x i8>, <16 x i8> *%ptr
%v26 = load volatile <16 x i8>, <16 x i8> *%ptr
%v27 = load volatile <16 x i8>, <16 x i8> *%ptr
%v28 = load volatile <16 x i8>, <16 x i8> *%ptr
%v29 = load volatile <16 x i8>, <16 x i8> *%ptr
%v30 = load volatile <16 x i8>, <16 x i8> *%ptr
%v31 = load volatile <16 x i8>, <16 x i8> *%ptr
store volatile <16 x i8> %v31, <16 x i8> *%ptr
store volatile <16 x i8> %v30, <16 x i8> *%ptr
store volatile <16 x i8> %v29, <16 x i8> *%ptr
store volatile <16 x i8> %v28, <16 x i8> *%ptr
store volatile <16 x i8> %v27, <16 x i8> *%ptr
store volatile <16 x i8> %v26, <16 x i8> *%ptr
store volatile <16 x i8> %v25, <16 x i8> *%ptr
store volatile <16 x i8> %v24, <16 x i8> *%ptr
store volatile <16 x i8> %v23, <16 x i8> *%ptr
store volatile <16 x i8> %v22, <16 x i8> *%ptr
store volatile <16 x i8> %v21, <16 x i8> *%ptr
store volatile <16 x i8> %v20, <16 x i8> *%ptr
store volatile <16 x i8> %v19, <16 x i8> *%ptr
store volatile <16 x i8> %v18, <16 x i8> *%ptr
store volatile <16 x i8> %v17, <16 x i8> *%ptr
store volatile <16 x i8> %v16, <16 x i8> *%ptr
store volatile <16 x i8> %v15, <16 x i8> *%ptr
store volatile <16 x i8> %v14, <16 x i8> *%ptr
store volatile <16 x i8> %v13, <16 x i8> *%ptr
store volatile <16 x i8> %v12, <16 x i8> *%ptr
store volatile <16 x i8> %v11, <16 x i8> *%ptr
store volatile <16 x i8> %v10, <16 x i8> *%ptr
store volatile <16 x i8> %v9, <16 x i8> *%ptr
store volatile <16 x i8> %v8, <16 x i8> *%ptr
store volatile <16 x i8> %v7, <16 x i8> *%ptr
store volatile <16 x i8> %v6, <16 x i8> *%ptr
store volatile <16 x i8> %v5, <16 x i8> *%ptr
store volatile <16 x i8> %v4, <16 x i8> *%ptr
store volatile <16 x i8> %v3, <16 x i8> *%ptr
store volatile <16 x i8> %v2, <16 x i8> *%ptr
store volatile <16 x i8> %v1, <16 x i8> *%ptr
store volatile <16 x i8> %v0, <16 x i8> *%ptr
ret void
}
; Like f2, but only %f8 should be saved.
define void @f3(<16 x i8> *%ptr) {
; CHECK-LABEL: f3:
; CHECK: aghi %r15, -168
; CHECK-DAG: std %f8,
; CHECK-NOT: vst {{.*}}(%r15)
; CHECK-NOT: vl {{.*}}(%r15)
; CHECK-NOT: %v9
; CHECK-NOT: %v10
; CHECK-NOT: %v11
; CHECK-NOT: %v12
; CHECK-NOT: %v13
; CHECK-NOT: %v14
; CHECK-NOT: %v15
; CHECK-DAG: ld %f8,
; CHECK: aghi %r15, 168
; CHECK: br %r14
%v0 = load volatile <16 x i8>, <16 x i8> *%ptr
%v1 = load volatile <16 x i8>, <16 x i8> *%ptr
%v2 = load volatile <16 x i8>, <16 x i8> *%ptr
%v3 = load volatile <16 x i8>, <16 x i8> *%ptr
%v4 = load volatile <16 x i8>, <16 x i8> *%ptr
%v5 = load volatile <16 x i8>, <16 x i8> *%ptr
%v6 = load volatile <16 x i8>, <16 x i8> *%ptr
%v7 = load volatile <16 x i8>, <16 x i8> *%ptr
%v8 = load volatile <16 x i8>, <16 x i8> *%ptr
%v16 = load volatile <16 x i8>, <16 x i8> *%ptr
%v17 = load volatile <16 x i8>, <16 x i8> *%ptr
%v18 = load volatile <16 x i8>, <16 x i8> *%ptr
%v19 = load volatile <16 x i8>, <16 x i8> *%ptr
%v20 = load volatile <16 x i8>, <16 x i8> *%ptr
%v21 = load volatile <16 x i8>, <16 x i8> *%ptr
%v22 = load volatile <16 x i8>, <16 x i8> *%ptr
%v23 = load volatile <16 x i8>, <16 x i8> *%ptr
%v24 = load volatile <16 x i8>, <16 x i8> *%ptr
%v25 = load volatile <16 x i8>, <16 x i8> *%ptr
%v26 = load volatile <16 x i8>, <16 x i8> *%ptr
%v27 = load volatile <16 x i8>, <16 x i8> *%ptr
%v28 = load volatile <16 x i8>, <16 x i8> *%ptr
%v29 = load volatile <16 x i8>, <16 x i8> *%ptr
%v30 = load volatile <16 x i8>, <16 x i8> *%ptr
%v31 = load volatile <16 x i8>, <16 x i8> *%ptr
store volatile <16 x i8> %v31, <16 x i8> *%ptr
store volatile <16 x i8> %v30, <16 x i8> *%ptr
store volatile <16 x i8> %v29, <16 x i8> *%ptr
store volatile <16 x i8> %v28, <16 x i8> *%ptr
store volatile <16 x i8> %v27, <16 x i8> *%ptr
store volatile <16 x i8> %v26, <16 x i8> *%ptr
store volatile <16 x i8> %v25, <16 x i8> *%ptr
store volatile <16 x i8> %v24, <16 x i8> *%ptr
store volatile <16 x i8> %v23, <16 x i8> *%ptr
store volatile <16 x i8> %v22, <16 x i8> *%ptr
store volatile <16 x i8> %v21, <16 x i8> *%ptr
store volatile <16 x i8> %v20, <16 x i8> *%ptr
store volatile <16 x i8> %v19, <16 x i8> *%ptr
store volatile <16 x i8> %v18, <16 x i8> *%ptr
store volatile <16 x i8> %v17, <16 x i8> *%ptr
store volatile <16 x i8> %v16, <16 x i8> *%ptr
store volatile <16 x i8> %v8, <16 x i8> *%ptr
store volatile <16 x i8> %v7, <16 x i8> *%ptr
store volatile <16 x i8> %v6, <16 x i8> *%ptr
store volatile <16 x i8> %v5, <16 x i8> *%ptr
store volatile <16 x i8> %v4, <16 x i8> *%ptr
store volatile <16 x i8> %v3, <16 x i8> *%ptr
store volatile <16 x i8> %v2, <16 x i8> *%ptr
store volatile <16 x i8> %v1, <16 x i8> *%ptr
store volatile <16 x i8> %v0, <16 x i8> *%ptr
ret void
}
; Like f2, but no registers should be saved.
define void @f4(<16 x i8> *%ptr) {
; CHECK-LABEL: f4:
; CHECK-NOT: %r15
; CHECK: br %r14
%v0 = load volatile <16 x i8>, <16 x i8> *%ptr
%v1 = load volatile <16 x i8>, <16 x i8> *%ptr
%v2 = load volatile <16 x i8>, <16 x i8> *%ptr
%v3 = load volatile <16 x i8>, <16 x i8> *%ptr
%v4 = load volatile <16 x i8>, <16 x i8> *%ptr
%v5 = load volatile <16 x i8>, <16 x i8> *%ptr
%v6 = load volatile <16 x i8>, <16 x i8> *%ptr
%v7 = load volatile <16 x i8>, <16 x i8> *%ptr
%v16 = load volatile <16 x i8>, <16 x i8> *%ptr
%v17 = load volatile <16 x i8>, <16 x i8> *%ptr
%v18 = load volatile <16 x i8>, <16 x i8> *%ptr
%v19 = load volatile <16 x i8>, <16 x i8> *%ptr
%v20 = load volatile <16 x i8>, <16 x i8> *%ptr
%v21 = load volatile <16 x i8>, <16 x i8> *%ptr
%v22 = load volatile <16 x i8>, <16 x i8> *%ptr
%v23 = load volatile <16 x i8>, <16 x i8> *%ptr
%v24 = load volatile <16 x i8>, <16 x i8> *%ptr
%v25 = load volatile <16 x i8>, <16 x i8> *%ptr
%v26 = load volatile <16 x i8>, <16 x i8> *%ptr
%v27 = load volatile <16 x i8>, <16 x i8> *%ptr
%v28 = load volatile <16 x i8>, <16 x i8> *%ptr
%v29 = load volatile <16 x i8>, <16 x i8> *%ptr
%v30 = load volatile <16 x i8>, <16 x i8> *%ptr
%v31 = load volatile <16 x i8>, <16 x i8> *%ptr
store volatile <16 x i8> %v31, <16 x i8> *%ptr
store volatile <16 x i8> %v30, <16 x i8> *%ptr
store volatile <16 x i8> %v29, <16 x i8> *%ptr
store volatile <16 x i8> %v28, <16 x i8> *%ptr
store volatile <16 x i8> %v27, <16 x i8> *%ptr
store volatile <16 x i8> %v26, <16 x i8> *%ptr
store volatile <16 x i8> %v25, <16 x i8> *%ptr
store volatile <16 x i8> %v24, <16 x i8> *%ptr
store volatile <16 x i8> %v23, <16 x i8> *%ptr
store volatile <16 x i8> %v22, <16 x i8> *%ptr
store volatile <16 x i8> %v21, <16 x i8> *%ptr
store volatile <16 x i8> %v20, <16 x i8> *%ptr
store volatile <16 x i8> %v19, <16 x i8> *%ptr
store volatile <16 x i8> %v18, <16 x i8> *%ptr
store volatile <16 x i8> %v17, <16 x i8> *%ptr
store volatile <16 x i8> %v16, <16 x i8> *%ptr
store volatile <16 x i8> %v7, <16 x i8> *%ptr
store volatile <16 x i8> %v6, <16 x i8> *%ptr
store volatile <16 x i8> %v5, <16 x i8> *%ptr
store volatile <16 x i8> %v4, <16 x i8> *%ptr
store volatile <16 x i8> %v3, <16 x i8> *%ptr
store volatile <16 x i8> %v2, <16 x i8> *%ptr
store volatile <16 x i8> %v1, <16 x i8> *%ptr
store volatile <16 x i8> %v0, <16 x i8> *%ptr
ret void
}
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