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author | Tim Northover <tnorthover@apple.com> | 2014-02-06 18:18:36 +0000 |
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committer | Tim Northover <tnorthover@apple.com> | 2014-02-06 18:18:36 +0000 |
commit | 0c245b69f7a6b9eaa1386f7c2251a47a253ced62 (patch) | |
tree | da0f2a7a9d37fa05b043a4a3f3505531a8facc43 /test | |
parent | 6984ee6aa262a0ab3b49a161066f4fab941a2ee6 (diff) | |
download | llvm-0c245b69f7a6b9eaa1386f7c2251a47a253ced62.tar.gz llvm-0c245b69f7a6b9eaa1386f7c2251a47a253ced62.tar.bz2 llvm-0c245b69f7a6b9eaa1386f7c2251a47a253ced62.tar.xz |
X86: add costs for 64-bit vector ext/trunc & rebalance
The most important part of this is probably adding any cost at all for
operations like zext <8 x i8> to <8 x i32>. Before they were being
recorded as extremely costly (24, I believe) which made LLVM fall back
on a 4-wide vectorisation of a loop.
It also rebalances the values for sext, zext and trunc. Lacking any
other sane metric that might work across CPU microarchitectures I went
for instructions. This seems to be in reasonable accord with the rest
of the table (sitofp, ...) though no doubt at least one value is
sub-optimal for some bizarre reason.
Finally, separate AVX and AVX2 values are provided where appropriate.
The CodeGen is quite different in many cases.
rdar://problem/15981990
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200928 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/Analysis/CostModel/X86/cast.ll | 97 |
1 files changed, 75 insertions, 22 deletions
diff --git a/test/Analysis/CostModel/X86/cast.ll b/test/Analysis/CostModel/X86/cast.ll index f3c1283c7e..7f97b176f7 100644 --- a/test/Analysis/CostModel/X86/cast.ll +++ b/test/Analysis/CostModel/X86/cast.ll @@ -1,10 +1,11 @@ -; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s +; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=core-avx2 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-AVX2 +; RUN: opt < %s -cost-model -analyze -mtriple=x86_64-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-AVX target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx10.8.0" define i32 @add(i32 %arg) { - +; CHECK-LABEL: for function 'add' ; -- Same size registeres -- ;CHECK: cost of 1 {{.*}} zext %A = zext <4 x i1> undef to <4 x i32> @@ -33,57 +34,106 @@ define i32 @add(i32 %arg) { } define i32 @zext_sext(<8 x i1> %in) { - ;CHECK: cost of 6 {{.*}} zext +; CHECK-AVX2-LABEL: for function 'zext_sext' +; CHECK-AVX-LABEL: for function 'zext_sext' + ;CHECK-AVX2: cost of 3 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext %Z = zext <8 x i1> %in to <8 x i32> - ;CHECK: cost of 9 {{.*}} sext + ;CHECK-AVX2: cost of 3 {{.*}} sext + ;CHECK-AVX: cost of 7 {{.*}} sext %S = sext <8 x i1> %in to <8 x i32> - ;CHECK: cost of 1 {{.*}} zext + ;CHECK-AVX2: cost of 1 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext %A1 = zext <16 x i8> undef to <16 x i16> - ;CHECK: cost of 1 {{.*}} sext + ;CHECK-AVX2: cost of 1 {{.*}} sext + ;CHECK-AVX: cost of 4 {{.*}} sext %A2 = sext <16 x i8> undef to <16 x i16> - ;CHECK: cost of 1 {{.*}} sext + ;CHECK-AVX2: cost of 1 {{.*}} sext + ;CHECK-AVX: cost of 4 {{.*}} sext %A = sext <8 x i16> undef to <8 x i32> - ;CHECK: cost of 1 {{.*}} zext + ;CHECK-AVX2: cost of 1 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext %B = zext <8 x i16> undef to <8 x i32> - ;CHECK: cost of 1 {{.*}} sext + ;CHECK-AVX2: cost of 1 {{.*}} sext + ;CHECK-AVX: cost of 4 {{.*}} sext %C = sext <4 x i32> undef to <4 x i64> - ;CHECK: cost of 6 {{.*}} sext - %C1 = sext <4 x i8> undef to <4 x i64> - ;CHECK: cost of 6 {{.*}} sext - %C2 = sext <4 x i16> undef to <4 x i64> - ;CHECK: cost of 1 {{.*}} zext + ;CHECK-AVX2: cost of 3 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext + %C.v8i8.z = zext <8 x i8> undef to <8 x i32> + ;CHECK-AVX2: cost of 3 {{.*}} sext + ;CHECK-AVX: cost of 7 {{.*}} sext + %C.v8i8.s = sext <8 x i8> undef to <8 x i32> + ;CHECK-AVX2: cost of 3 {{.*}} zext + ;CHECK-AVX: cost of 3 {{.*}} zext + %C.v4i16.z = zext <4 x i16> undef to <4 x i64> + ;CHECK-AVX2: cost of 3 {{.*}} sext + ;CHECK-AVX: cost of 6 {{.*}} sext + %C.v4i16.s = sext <4 x i16> undef to <4 x i64> + + ;CHECK-AVX2: cost of 3 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext + %C.v4i8.z = zext <4 x i8> undef to <4 x i64> + ;CHECK-AVX2: cost of 3 {{.*}} sext + ;CHECK-AVX: cost of 6 {{.*}} sext + %C.v4i8.s = sext <4 x i8> undef to <4 x i64> + + ;CHECK-AVX2: cost of 1 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext %D = zext <4 x i32> undef to <4 x i64> - ;CHECK: cost of 1 {{.*}} trunc + ;CHECK-AVX2: cost of 2 {{.*}} trunc + ;CHECK-AVX: cost of 4 {{.*}} trunc %E = trunc <4 x i64> undef to <4 x i32> - ;CHECK: cost of 1 {{.*}} trunc + ;CHECK-AVX2: cost of 2 {{.*}} trunc + ;CHECK-AVX: cost of 5 {{.*}} trunc %F = trunc <8 x i32> undef to <8 x i16> - ;CHECK: cost of 2 {{.*}} trunc + ;CHECK-AVX2: cost of 4 {{.*}} trunc + ;CHECK-AVX: cost of 4 {{.*}} trunc %F1 = trunc <16 x i16> undef to <16 x i8> - - ;CHECK: cost of 3 {{.*}} trunc + ;CHECK-AVX2: cost of 2 {{.*}} trunc + ;CHECK-AVX: cost of 4 {{.*}} trunc + %F2 = trunc <8 x i32> undef to <8 x i8> + ;CHECK-AVX2: cost of 2 {{.*}} trunc + ;CHECK-AVX: cost of 4 {{.*}} trunc + %F3 = trunc <4 x i64> undef to <4 x i8> + + ;CHECK-AVX2: cost of 4 {{.*}} trunc + ;CHECK-AVX: cost of 9 {{.*}} trunc %G = trunc <8 x i64> undef to <8 x i32> ret i32 undef } define i32 @masks8(<8 x i1> %in) { - ;CHECK: cost of 6 {{.*}} zext +; CHECK-AVX2-LABEL: for function 'masks8' +; CHECK-AVX-LABEL: for function 'masks8' + + ;CHECK-AVX2: cost of 3 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext %Z = zext <8 x i1> %in to <8 x i32> - ;CHECK: cost of 9 {{.*}} sext + ;CHECK-AVX2: cost of 3 {{.*}} sext + ;CHECK-AVX: cost of 7 {{.*}} sext %S = sext <8 x i1> %in to <8 x i32> ret i32 undef } define i32 @masks4(<4 x i1> %in) { - ;CHECK: cost of 8 {{.*}} sext +; CHECK-AVX2-LABEL: for function 'masks4' +; CHECK-AVX-LABEL: for function 'masks4' + + ;CHECK-AVX2: cost of 3 {{.*}} zext + ;CHECK-AVX: cost of 4 {{.*}} zext + %Z = zext <4 x i1> %in to <4 x i64> + ;CHECK-AVX2: cost of 3 {{.*}} sext + ;CHECK-AVX: cost of 6 {{.*}} sext %S = sext <4 x i1> %in to <4 x i64> ret i32 undef } define void @sitofp4(<4 x i1> %a, <4 x i8> %b, <4 x i16> %c, <4 x i32> %d) { +; CHECK-LABEL: for function 'sitofp4' ; CHECK: cost of 3 {{.*}} sitofp %A1 = sitofp <4 x i1> %a to <4 x float> ; CHECK: cost of 3 {{.*}} sitofp @@ -107,6 +157,7 @@ define void @sitofp4(<4 x i1> %a, <4 x i8> %b, <4 x i16> %c, <4 x i32> %d) { } define void @sitofp8(<8 x i1> %a, <8 x i8> %b, <8 x i16> %c, <8 x i32> %d) { +; CHECK-LABEL: for function 'sitofp8' ; CHECK: cost of 8 {{.*}} sitofp %A1 = sitofp <8 x i1> %a to <8 x float> @@ -122,6 +173,7 @@ define void @sitofp8(<8 x i1> %a, <8 x i8> %b, <8 x i16> %c, <8 x i32> %d) { } define void @uitofp4(<4 x i1> %a, <4 x i8> %b, <4 x i16> %c, <4 x i32> %d) { +; CHECK-LABEL: for function 'uitofp4' ; CHECK: cost of 7 {{.*}} uitofp %A1 = uitofp <4 x i1> %a to <4 x float> ; CHECK: cost of 7 {{.*}} uitofp @@ -145,6 +197,7 @@ define void @uitofp4(<4 x i1> %a, <4 x i8> %b, <4 x i16> %c, <4 x i32> %d) { } define void @uitofp8(<8 x i1> %a, <8 x i8> %b, <8 x i16> %c, <8 x i32> %d) { +; CHECK-LABEL: for function 'uitofp8' ; CHECK: cost of 6 {{.*}} uitofp %A1 = uitofp <8 x i1> %a to <8 x float> |