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-rw-r--r--test/CodeGen/PowerPC/unaligned.ll34
1 files changed, 33 insertions, 1 deletions
diff --git a/test/CodeGen/PowerPC/unaligned.ll b/test/CodeGen/PowerPC/unaligned.ll
index d469c62..64c03cd 100644
--- a/test/CodeGen/PowerPC/unaligned.ll
+++ b/test/CodeGen/PowerPC/unaligned.ll
@@ -1,4 +1,6 @@
-; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s
+; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=-vsx | FileCheck %s
+target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128-n32"
+; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -mattr=+vsx | FileCheck -check-prefix=CHECK-VSX %s
target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128-n32"
define void @foo1(i16* %p, i16* %r) nounwind {
@@ -10,6 +12,10 @@ entry:
; CHECK: @foo1
; CHECK: lhz
; CHECK: sth
+
+; CHECK-VSX: @foo1
+; CHECK-VSX: lhz
+; CHECK-VSX: sth
}
define void @foo2(i32* %p, i32* %r) nounwind {
@@ -21,6 +27,10 @@ entry:
; CHECK: @foo2
; CHECK: lwz
; CHECK: stw
+
+; CHECK-VSX: @foo2
+; CHECK-VSX: lwz
+; CHECK-VSX: stw
}
define void @foo3(i64* %p, i64* %r) nounwind {
@@ -32,6 +42,10 @@ entry:
; CHECK: @foo3
; CHECK: ld
; CHECK: std
+
+; CHECK-VSX: @foo3
+; CHECK-VSX: ld
+; CHECK-VSX: std
}
define void @foo4(float* %p, float* %r) nounwind {
@@ -43,6 +57,10 @@ entry:
; CHECK: @foo4
; CHECK: lfs
; CHECK: stfs
+
+; CHECK-VSX: @foo4
+; CHECK-VSX: lfs
+; CHECK-VSX: stfs
}
define void @foo5(double* %p, double* %r) nounwind {
@@ -54,6 +72,10 @@ entry:
; CHECK: @foo5
; CHECK: lfd
; CHECK: stfd
+
+; CHECK-VSX: @foo5
+; CHECK-VSX: lxsdx
+; CHECK-VSX: stxsdx
}
define void @foo6(<4 x float>* %p, <4 x float>* %r) nounwind {
@@ -69,5 +91,15 @@ entry:
; CHECK-DAG: ld
; CHECK-DAG: stdx
; CHECK: stdx
+
+; For VSX on P7, unaligned loads and stores are preferable to aligned
+; stack slots, but lvsl/vperm is better still. (On P8 lxvw4x is preferable.)
+; Using unaligned stxvw4x is preferable on both machines.
+; CHECK-VSX: @foo6
+; CHECK-VSX-DAG: lvsl
+; CHECK-VSX-DAG: lvx
+; CHECK-VSX-DAG: lvx
+; CHECK-VSX: vperm
+; CHECK-VSX: stxvw4x
}