addcda483e
Now that the call graph supports efficient replacement of a function and spurious reference edges, we can port ArgumentPromotion to the new pass manager very easily. The old PM-specific bits are sunk into callbacks that the new PM simply doesn't use. Unlike the old PM, the new PM simply does argument promotion and afterward does the update to LCG reflecting the promoted function. Differential Revision: https://reviews.llvm.org/D29580 llvm-svn: 294667
51 lines
1.5 KiB
LLVM
51 lines
1.5 KiB
LLVM
; RUN: opt %s -argpromotion -sroa -S | FileCheck %s
|
|
; RUN: opt %s -passes='argpromotion,function(sroa)' -S | FileCheck %s
|
|
|
|
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
|
|
|
|
%struct.ss = type { i32, i32 }
|
|
|
|
; Argpromote + sroa should change this to passing the two integers by value.
|
|
define internal i32 @f(%struct.ss* inalloca %s) {
|
|
entry:
|
|
%f0 = getelementptr %struct.ss, %struct.ss* %s, i32 0, i32 0
|
|
%f1 = getelementptr %struct.ss, %struct.ss* %s, i32 0, i32 1
|
|
%a = load i32, i32* %f0, align 4
|
|
%b = load i32, i32* %f1, align 4
|
|
%r = add i32 %a, %b
|
|
ret i32 %r
|
|
}
|
|
; CHECK-LABEL: define internal i32 @f
|
|
; CHECK-NOT: load
|
|
; CHECK: ret
|
|
|
|
define i32 @main() {
|
|
entry:
|
|
%S = alloca inalloca %struct.ss
|
|
%f0 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 0
|
|
%f1 = getelementptr %struct.ss, %struct.ss* %S, i32 0, i32 1
|
|
store i32 1, i32* %f0, align 4
|
|
store i32 2, i32* %f1, align 4
|
|
%r = call i32 @f(%struct.ss* inalloca %S)
|
|
ret i32 %r
|
|
}
|
|
; CHECK-LABEL: define i32 @main
|
|
; CHECK-NOT: load
|
|
; CHECK: ret
|
|
|
|
; Argpromote can't promote %a because of the icmp use.
|
|
define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b) nounwind {
|
|
; CHECK: define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b)
|
|
entry:
|
|
%c = icmp eq %struct.ss* %a, %b
|
|
ret i1 %c
|
|
}
|
|
|
|
define i32 @test() {
|
|
entry:
|
|
%S = alloca inalloca %struct.ss
|
|
%c = call i1 @g(%struct.ss* %S, %struct.ss* inalloca %S)
|
|
; CHECK: call i1 @g(%struct.ss* %S, %struct.ss* inalloca %S)
|
|
ret i32 0
|
|
}
|