mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
ea120b6bb5
This commit only handles IfConvertTriangle. To update edge weights of a successor, one interface is added to MachineBasicBlock: /// Set successor weight of a given iterator. setSuccWeight(succ_iterator I, uint32_t weight) An existing testing case test/CodeGen/Thumb2/v8_IT_5.ll is updated, since we now correctly update the edge weights, the cold block is placed at the end of the function and we jump to the cold block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200428 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.1 KiB
LLVM
43 lines
1.1 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv8 -print-machineinstrs=if-converter -o /dev/null 2>&1 | FileCheck %s
|
|
|
|
%struct.S = type { i8* (i8*)*, [1 x i8] }
|
|
define internal zeroext i8 @bar(%struct.S* %x, %struct.S* nocapture %y) nounwind readonly {
|
|
entry:
|
|
%0 = getelementptr inbounds %struct.S* %x, i32 0, i32 1, i32 0
|
|
%1 = load i8* %0, align 1
|
|
%2 = zext i8 %1 to i32
|
|
%3 = and i32 %2, 112
|
|
%4 = icmp eq i32 %3, 0
|
|
br i1 %4, label %return, label %bb
|
|
|
|
bb:
|
|
%5 = getelementptr inbounds %struct.S* %y, i32 0, i32 1, i32 0
|
|
%6 = load i8* %5, align 1
|
|
%7 = zext i8 %6 to i32
|
|
%8 = and i32 %7, 112
|
|
%9 = icmp eq i32 %8, 0
|
|
br i1 %9, label %return, label %bb2
|
|
|
|
; CHECK: BB#2: derived from LLVM BB %bb2
|
|
; CHECK: Successors according to CFG: BB#3(192) BB#4(192)
|
|
|
|
bb2:
|
|
%v10 = icmp eq i32 %3, 16
|
|
br i1 %v10, label %bb4, label %bb3, !prof !0
|
|
|
|
bb3:
|
|
%v11 = icmp eq i32 %8, 16
|
|
br i1 %v11, label %bb4, label %return, !prof !1
|
|
|
|
bb4:
|
|
%v12 = ptrtoint %struct.S* %x to i32
|
|
%phitmp = trunc i32 %v12 to i8
|
|
ret i8 %phitmp
|
|
|
|
return:
|
|
ret i8 1
|
|
}
|
|
|
|
!0 = metadata !{metadata !"branch_weights", i32 4, i32 12}
|
|
!1 = metadata !{metadata !"branch_weights", i32 8, i32 16}
|