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llvm-mirror/test/Transforms/MemCpyOpt/smaller.ll
Matt Arsenault 4bf7d5872e OpaquePtr: Bulk update tests to use typed byval
Upgrade of the IR text tests should be the only thing blocking making
typed byval mandatory. Partially done through regex and partially
manual.
2020-11-20 14:00:46 -05:00

41 lines
2.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -memcpyopt -S < %s -enable-memcpyopt-memoryssa=0 | FileCheck %s
; RUN: opt -memcpyopt -S < %s -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s
; RUN: opt -passes=memcpyopt -S < %s -enable-memcpyopt-memoryssa=0 | FileCheck %s
; RUN: opt -passes=memcpyopt -S < %s -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s
; rdar://8875553
; Memcpyopt shouldn't optimize the second memcpy using the first
; because the first has a smaller size.
target datalayout = "e-p:32:32:32"
%struct.s = type { [11 x i8], i32 }
@.str = private constant [11 x i8] c"0123456789\00"
@cell = external global %struct.s
declare void @check(%struct.s* byval(%struct.s) %p) nounwind
declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind
define void @foo() nounwind {
; CHECK-LABEL: @foo(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[AGG_TMP:%.*]] = alloca [[STRUCT_S:%.*]], align 4
; CHECK-NEXT: store i32 99, i32* getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 1), align 4
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i8* align 1 getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 11, i1 false)
; CHECK-NEXT: [[TMP:%.*]] = getelementptr inbounds [[STRUCT_S]], %struct.s* [[AGG_TMP]], i32 0, i32 0, i32 0
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 [[TMP]], i8* align 4 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i1 false)
; CHECK-NEXT: call void @check(%struct.s* byval(%struct.s) [[AGG_TMP]])
; CHECK-NEXT: ret void
;
entry:
%agg.tmp = alloca %struct.s, align 4
store i32 99, i32* getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 1), align 4
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 1 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i8* align 1 getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i32 0, i32 0), i32 11, i1 false)
%tmp = getelementptr inbounds %struct.s, %struct.s* %agg.tmp, i32 0, i32 0, i32 0
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %tmp, i8* align 4 getelementptr inbounds (%struct.s, %struct.s* @cell, i32 0, i32 0, i32 0), i32 16, i1 false)
call void @check(%struct.s* byval(%struct.s) %agg.tmp)
ret void
}