forked from OSchip/llvm-project
44 lines
1.1 KiB
LLVM
44 lines
1.1 KiB
LLVM
; Test vector byte masks, v2f64 version.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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; Test an all-zeros vector.
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define <2 x double> @f1() {
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; CHECK-LABEL: f1:
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; CHECK: vgbm %v24, 0
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; CHECK: br %r14
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ret <2 x double> zeroinitializer
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}
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; Test an all-ones vector.
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define <2 x double> @f2() {
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; CHECK-LABEL: f2:
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; CHECK: vgbm %v24, 65535
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; CHECK: br %r14
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ret <2 x double> <double 0xffffffffffffffff, double 0xffffffffffffffff>
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}
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; Test a mixed vector (mask 0x8c76).
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define <2 x double> @f3() {
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; CHECK-LABEL: f3:
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; CHECK: vgbm %v24, 35958
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; CHECK: br %r14
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ret <2 x double> <double 0xff000000ffff0000, double 0x00ffffff00ffff00>
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}
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; Test that undefs are treated as zero (mask 0x8c00).
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define <2 x double> @f4() {
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; CHECK-LABEL: f4:
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; CHECK: vgbm %v24, 35840
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; CHECK: br %r14
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ret <2 x double> <double 0xff000000ffff0000, double undef>
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}
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; Test that we don't use VGBM if one of the bytes is not 0 or 0xff.
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define <2 x double> @f5() {
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; CHECK-LABEL: f5:
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; CHECK-NOT: vgbm
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; CHECK: br %r14
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ret <2 x double> <double 0xfe000000ffff0000, double 0x00ffffff00ffff00>
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}
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