diff options
Diffstat (limited to 'llvm/test/CodeGen/SystemZ/vec-const-06.ll')
| -rw-r--r-- | llvm/test/CodeGen/SystemZ/vec-const-06.ll | 40 |
1 files changed, 32 insertions, 8 deletions
diff --git a/llvm/test/CodeGen/SystemZ/vec-const-06.ll b/llvm/test/CodeGen/SystemZ/vec-const-06.ll index 6144e0f4910..be53a0581ec 100644 --- a/llvm/test/CodeGen/SystemZ/vec-const-06.ll +++ b/llvm/test/CodeGen/SystemZ/vec-const-06.ll @@ -1,19 +1,43 @@ -; Test vector byte masks, v2f64 version. Only all-zero vectors are handled. +; Test vector byte masks, v2f64 version. ; ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s ; Test an all-zeros vector. -define <2 x double> @f0() { -; CHECK-LABEL: f0: +define <2 x double> @f1() { +; CHECK-LABEL: f1: ; CHECK: vgbm %v24, 0 ; CHECK: br %r14 ret <2 x double> zeroinitializer } -; Test that undefs are treated as zero. -define <2 x double> @f1() { -; CHECK-LABEL: f1: -; CHECK: vgbm %v24, 0 +; Test an all-ones vector. +define <2 x double> @f2() { +; CHECK-LABEL: f2: +; CHECK: vgbm %v24, 65535 +; CHECK: br %r14 + ret <2 x double> <double 0xffffffffffffffff, double 0xffffffffffffffff> +} + +; Test a mixed vector (mask 0x8c76). +define <2 x double> @f3() { +; CHECK-LABEL: f3: +; CHECK: vgbm %v24, 35958 +; CHECK: br %r14 + ret <2 x double> <double 0xff000000ffff0000, double 0x00ffffff00ffff00> +} + +; Test that undefs are treated as zero (mask 0x8c00). +define <2 x double> @f4() { +; CHECK-LABEL: f4: +; CHECK: vgbm %v24, 35840 +; CHECK: br %r14 + ret <2 x double> <double 0xff000000ffff0000, double undef> +} + +; Test that we don't use VGBM if one of the bytes is not 0 or 0xff. +define <2 x double> @f5() { +; CHECK-LABEL: f5: +; CHECK-NOT: vgbm ; CHECK: br %r14 - ret <2 x double> <double zeroinitializer, double undef> + ret <2 x double> <double 0xfe000000ffff0000, double 0x00ffffff00ffff00> } |
