RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 09:13:34 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

[InlineCost] Add a test case for GEP cost

Browse Source 
The added test case is to check whether the simplified value is passed to
getGEPCost().

Differential Revision: https://reviews.llvm.org/D33779

llvm-svn: 304454
This commit is contained in:
Haicheng Wu 2017-06-01 19:06:07 +00:00
parent ebba7331db
commit 350cff2b25
1 changed files with 23 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
test/Transforms/Inline/AArch64/gep-cost.ll
View File

@ -4,11 +4,21 @@
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64--linux-gnu"
define void @outer([4 x i32]* %ptr, i32 %i) {
define void @outer1([4 x i32]* %ptr, i32 %i) {
call void @inner1([4 x i32]* %ptr, i32 %i)
ret void
}
define void @outer2([4 x i32]* %ptr, i32 %i) {
call void @inner2([4 x i32]* %ptr, i32 %i)
ret void
}
define void @outer3([4 x i32]* %ptr, i32 %j) {
call void @inner3([4 x i32]* %ptr, i32 0, i32 %j)
ret void
}
; The gep in inner1() is reg+reg, which is a legal addressing mode for AArch64.
; Thus, both the gep and ret can be simplified.
; CHECK: Analyzing call of inner1
@ -19,7 +29,7 @@ define void @inner1([4 x i32]* %ptr, i32 %i) {
ret void
}
; The gep in inner2() is reg+imm+reg, which is not a legal addressing mode for
; The gep in inner2() is reg+imm+reg, which is not a legal addressing mode for
; AArch64. Thus, only the ret can be simplified and not the gep.
; CHECK: Analyzing call of inner2
; CHECK: NumInstructionsSimplified: 1
@ -28,3 +38,14 @@ define void @inner2([4 x i32]* %ptr, i32 %i) {
%G = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i32 1, i32 %i
ret void
}
; The gep in inner3() is reg+reg because %i is a known constant from the
; callsite. This case is a legal addressing mode for AArch64. Thus, both the
; gep and ret can be simplified.
; CHECK: Analyzing call of inner3
; CHECK: NumInstructionsSimplified: 2
; CHECK: NumInstructions: 2
define void @inner3([4 x i32]* %ptr, i32 %i, i32 %j) {
%G = getelementptr inbounds [4 x i32], [4 x i32]* %ptr, i32 %i, i32 %j
ret void
}