1 ; Test vector byte masks, v2f64 version. 2 ; 3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s 4 5 ; Test an all-zeros vector. 6 define <2 x double> @f1() { 7 ; CHECK-LABEL: f1: 8 ; CHECK: vgbm %v24, 0 9 ; CHECK: br %r14 10 ret <2 x double> zeroinitializer 11 } 12 13 ; Test an all-ones vector. 14 define <2 x double> @f2() { 15 ; CHECK-LABEL: f2: 16 ; CHECK: vgbm %v24, 65535 17 ; CHECK: br %r14 18 ret <2 x double> <double 0xffffffffffffffff, double 0xffffffffffffffff> 19 } 20 21 ; Test a mixed vector (mask 0x8c76). 22 define <2 x double> @f3() { 23 ; CHECK-LABEL: f3: 24 ; CHECK: vgbm %v24, 35958 25 ; CHECK: br %r14 26 ret <2 x double> <double 0xff000000ffff0000, double 0x00ffffff00ffff00> 27 } 28 29 ; Test that undefs are treated as zero (mask 0x8c00). 30 define <2 x double> @f4() { 31 ; CHECK-LABEL: f4: 32 ; CHECK: vgbm %v24, 35840 33 ; CHECK: br %r14 34 ret <2 x double> <double 0xff000000ffff0000, double undef> 35 } 36 37 ; Test that we don't use VGBM if one of the bytes is not 0 or 0xff. 38 define <2 x double> @f5() { 39 ; CHECK-LABEL: f5: 40 ; CHECK-NOT: vgbm 41 ; CHECK: br %r14 42 ret <2 x double> <double 0xfe000000ffff0000, double 0x00ffffff00ffff00> 43 } 44
