Cost Model: change the default cost of control flow instructions (br / ret / ...) to zero.
llvm-svn: 169423
diff --git a/llvm/lib/Target/TargetTransformImpl.cpp b/llvm/lib/Target/TargetTransformImpl.cpp
index b36e6f8..2df7263 100644
--- a/llvm/lib/Target/TargetTransformImpl.cpp
+++ b/llvm/lib/Target/TargetTransformImpl.cpp
@@ -283,7 +283,7 @@
}
unsigned VectorTargetTransformImpl::getCFInstrCost(unsigned Opcode) const {
- return 1;
+ return 0;
}
unsigned VectorTargetTransformImpl::getCmpSelInstrCost(unsigned Opcode,
diff --git a/llvm/test/Analysis/CostModel/X86/arith.ll b/llvm/test/Analysis/CostModel/X86/arith.ll
index 37cca8d..ae78d44 100644
--- a/llvm/test/Analysis/CostModel/X86/arith.ll
+++ b/llvm/test/Analysis/CostModel/X86/arith.ll
@@ -14,7 +14,7 @@
%D = add <4 x i64> undef, undef
;CHECK: cost of 8 {{.*}} add
%E = add <8 x i64> undef, undef
- ;CHECK: cost of 1 {{.*}} ret
+ ;CHECK: cost of 0 {{.*}} ret
ret i32 undef
}
@@ -28,7 +28,7 @@
%C = xor <2 x i64> undef, undef
;CHECK: cost of 1 {{.*}} xor
%D = xor <4 x i64> undef, undef
- ;CHECK: cost of 1 {{.*}} ret
+ ;CHECK: cost of 0 {{.*}} ret
ret i32 undef
}
diff --git a/llvm/test/Analysis/CostModel/X86/cast.ll b/llvm/test/Analysis/CostModel/X86/cast.ll
index 75c97a7..cedc682 100644
--- a/llvm/test/Analysis/CostModel/X86/cast.ll
+++ b/llvm/test/Analysis/CostModel/X86/cast.ll
@@ -28,7 +28,7 @@
;CHECK: cost of 0 {{.*}} trunc
%H = trunc i32 undef to i1
- ;CHECK: cost of 1 {{.*}} ret
+ ;CHECK: cost of 0 {{.*}} ret
ret i32 undef
}
diff --git a/llvm/test/Analysis/CostModel/X86/cmp.ll b/llvm/test/Analysis/CostModel/X86/cmp.ll
index f868bd1..90b09c1 100644
--- a/llvm/test/Analysis/CostModel/X86/cmp.ll
+++ b/llvm/test/Analysis/CostModel/X86/cmp.ll
@@ -35,7 +35,7 @@
;CHECK: cost of 4 {{.*}} icmp
%M = icmp eq <32 x i8> undef, undef
- ;CHECK: cost of 1 {{.*}} ret
+ ;CHECK: cost of 0 {{.*}} ret
ret i32 undef
}
diff --git a/llvm/test/Analysis/CostModel/X86/i32.ll b/llvm/test/Analysis/CostModel/X86/i32.ll
index 4015e0b..52c2959 100644
--- a/llvm/test/Analysis/CostModel/X86/i32.ll
+++ b/llvm/test/Analysis/CostModel/X86/i32.ll
@@ -2,7 +2,7 @@
;CHECK: cost of 2 {{.*}} add
-;CHECK: cost of 1 {{.*}} ret
+;CHECK: cost of 0 {{.*}} ret
define i32 @no_info(i32 %arg) {
%e = add i64 undef, undef
ret i32 undef
diff --git a/llvm/test/Analysis/CostModel/X86/tiny.ll b/llvm/test/Analysis/CostModel/X86/tiny.ll
index cc7b443..0dafdad 100644
--- a/llvm/test/Analysis/CostModel/X86/tiny.ll
+++ b/llvm/test/Analysis/CostModel/X86/tiny.ll
@@ -4,7 +4,7 @@
target triple = "x86_64-apple-macosx10.8.0"
;CHECK: cost of 1 {{.*}} add
-;CHECK: cost of 1 {{.*}} ret
+;CHECK: cost of 0 {{.*}} ret
define i32 @no_info(i32 %arg) {
%e = add i32 %arg, %arg
ret i32 %e
diff --git a/llvm/test/Analysis/CostModel/X86/vectorized-loop.ll b/llvm/test/Analysis/CostModel/X86/vectorized-loop.ll
index 7919a9c..6c9e111 100644
--- a/llvm/test/Analysis/CostModel/X86/vectorized-loop.ll
+++ b/llvm/test/Analysis/CostModel/X86/vectorized-loop.ll
@@ -41,7 +41,7 @@
store <8 x i32> %11, <8 x i32>* %9, align 4
%index.next = add i64 %index, 8
%12 = icmp eq i64 %index.next, %end.idx.rnd.down
- ;CHECK: cost of 1 {{.*}} br
+ ;CHECK: cost of 0 {{.*}} br
br i1 %12, label %middle.block, label %vector.body
middle.block: ; preds = %vector.body, %for.body.lr.ph
@@ -65,11 +65,11 @@
;CHECK: cost of 0 {{.*}} trunc
%16 = trunc i64 %indvars.iv.next to i32
%cmp = icmp slt i32 %16, %end
- ;CHECK: cost of 1 {{.*}} br
+ ;CHECK: cost of 0 {{.*}} br
br i1 %cmp, label %for.body, label %for.end
for.end: ; preds = %middle.block, %for.body, %entry
- ;CHECK: cost of 1 {{.*}} ret
+ ;CHECK: cost of 0 {{.*}} ret
ret i32 undef
}