llvm-6502/test/CodeGen/SystemZ/vec-add-01.ll
Ulrich Weigand cf0fa9b9dd [SystemZ] Add CodeGen support for scalar f64 ops in vector registers
The z13 vector facility includes some instructions that operate only on the
high f64 in a v2f64, effectively extending the FP register set from 16
to 32 registers.  It's still better to use the old instructions if the
operands happen to fit though, since the older instructions have a shorter
encoding.

Based on a patch by Richard Sandiford.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236524 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-05 19:28:34 +00:00

61 lines
1.6 KiB
LLVM

; Test vector addition.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
; Test a v16i8 addition.
define <16 x i8> @f1(<16 x i8> %dummy, <16 x i8> %val1, <16 x i8> %val2) {
; CHECK-LABEL: f1:
; CHECK: vab %v24, %v26, %v28
; CHECK: br %r14
%ret = add <16 x i8> %val1, %val2
ret <16 x i8> %ret
}
; Test a v8i16 addition.
define <8 x i16> @f2(<8 x i16> %dummy, <8 x i16> %val1, <8 x i16> %val2) {
; CHECK-LABEL: f2:
; CHECK: vah %v24, %v26, %v28
; CHECK: br %r14
%ret = add <8 x i16> %val1, %val2
ret <8 x i16> %ret
}
; Test a v4i32 addition.
define <4 x i32> @f3(<4 x i32> %dummy, <4 x i32> %val1, <4 x i32> %val2) {
; CHECK-LABEL: f3:
; CHECK: vaf %v24, %v26, %v28
; CHECK: br %r14
%ret = add <4 x i32> %val1, %val2
ret <4 x i32> %ret
}
; Test a v2i64 addition.
define <2 x i64> @f4(<2 x i64> %dummy, <2 x i64> %val1, <2 x i64> %val2) {
; CHECK-LABEL: f4:
; CHECK: vag %v24, %v26, %v28
; CHECK: br %r14
%ret = add <2 x i64> %val1, %val2
ret <2 x i64> %ret
}
; Test a v2f64 addition.
define <2 x double> @f5(<2 x double> %dummy, <2 x double> %val1,
<2 x double> %val2) {
; CHECK-LABEL: f5:
; CHECK: vfadb %v24, %v26, %v28
; CHECK: br %r14
%ret = fadd <2 x double> %val1, %val2
ret <2 x double> %ret
}
; Test an f64 addition that uses vector registers.
define double @f6(<2 x double> %val1, <2 x double> %val2) {
; CHECK-LABEL: f6:
; CHECK: wfadb %f0, %v24, %v26
; CHECK: br %r14
%scalar1 = extractelement <2 x double> %val1, i32 0
%scalar2 = extractelement <2 x double> %val2, i32 0
%ret = fadd double %scalar1, %scalar2
ret double %ret
}