You've already forked linux-packaging-mono
Imported Upstream version 5.18.0.207
Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
parent
8e12397d70
commit
eb85e2fc17
277
external/llvm/test/CodeGen/X86/loop-blocks.ll
vendored
277
external/llvm/test/CodeGen/X86/loop-blocks.ll
vendored
@ -1,277 +0,0 @@
|
||||
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -asm-verbose=false | FileCheck %s
|
||||
|
||||
; These tests check for loop branching structure, and that the loop align
|
||||
; directive is placed in the expected place.
|
||||
|
||||
; CodeGen should insert a branch into the middle of the loop in
|
||||
; order to avoid a branch within the loop.
|
||||
|
||||
; CHECK-LABEL: simple:
|
||||
; CHECK: jmp .LBB0_1
|
||||
; CHECK-NEXT: align
|
||||
; CHECK-NEXT: .LBB0_2:
|
||||
; CHECK-NEXT: callq loop_latch
|
||||
; CHECK-NEXT: .LBB0_1:
|
||||
; CHECK-NEXT: callq loop_header
|
||||
|
||||
define void @simple() nounwind {
|
||||
entry:
|
||||
br label %loop
|
||||
|
||||
loop:
|
||||
call void @loop_header()
|
||||
%t0 = tail call i32 @get()
|
||||
%t1 = icmp slt i32 %t0, 0
|
||||
br i1 %t1, label %done, label %bb
|
||||
|
||||
bb:
|
||||
call void @loop_latch()
|
||||
br label %loop
|
||||
|
||||
done:
|
||||
call void @exit()
|
||||
ret void
|
||||
}
|
||||
|
||||
; CodeGen should move block_a to the top of the loop so that it
|
||||
; falls through into the loop, avoiding a branch within the loop.
|
||||
|
||||
; CHECK-LABEL: slightly_more_involved:
|
||||
; CHECK: jmp .LBB1_1
|
||||
; CHECK-NEXT: align
|
||||
; CHECK-NEXT: .LBB1_4:
|
||||
; CHECK-NEXT: callq bar99
|
||||
; CHECK-NEXT: .LBB1_1:
|
||||
; CHECK-NEXT: callq body
|
||||
|
||||
define void @slightly_more_involved() nounwind {
|
||||
entry:
|
||||
br label %loop
|
||||
|
||||
loop:
|
||||
call void @body()
|
||||
%t0 = call i32 @get()
|
||||
%t1 = icmp slt i32 %t0, 2
|
||||
br i1 %t1, label %block_a, label %bb
|
||||
|
||||
bb:
|
||||
%t2 = call i32 @get()
|
||||
%t3 = icmp slt i32 %t2, 99
|
||||
br i1 %t3, label %exit, label %loop
|
||||
|
||||
block_a:
|
||||
call void @bar99()
|
||||
br label %loop
|
||||
|
||||
exit:
|
||||
call void @exit()
|
||||
ret void
|
||||
}
|
||||
|
||||
; Same as slightly_more_involved, but block_a is now a CFG diamond with
|
||||
; fallthrough edges which should be preserved.
|
||||
; "callq block_a_merge_func" is tail duped.
|
||||
|
||||
; CHECK-LABEL: yet_more_involved:
|
||||
; CHECK: jmp .LBB2_1
|
||||
; CHECK-NEXT: align
|
||||
; CHECK-NEXT: .LBB2_5:
|
||||
; CHECK-NEXT: callq block_a_true_func
|
||||
; CHECK-NEXT: callq block_a_merge_func
|
||||
; CHECK-NEXT: .LBB2_1:
|
||||
; CHECK-NEXT: callq body
|
||||
;
|
||||
; LBB2_4
|
||||
; CHECK: callq bar99
|
||||
; CHECK-NEXT: callq get
|
||||
; CHECK-NEXT: cmpl $2999, %eax
|
||||
; CHECK-NEXT: jle .LBB2_5
|
||||
; CHECK-NEXT: callq block_a_false_func
|
||||
; CHECK-NEXT: callq block_a_merge_func
|
||||
; CHECK-NEXT: jmp .LBB2_1
|
||||
|
||||
define void @yet_more_involved() nounwind {
|
||||
entry:
|
||||
br label %loop
|
||||
|
||||
loop:
|
||||
call void @body()
|
||||
%t0 = call i32 @get()
|
||||
%t1 = icmp slt i32 %t0, 2
|
||||
br i1 %t1, label %block_a, label %bb
|
||||
|
||||
bb:
|
||||
%t2 = call i32 @get()
|
||||
%t3 = icmp slt i32 %t2, 99
|
||||
br i1 %t3, label %exit, label %loop
|
||||
|
||||
block_a:
|
||||
call void @bar99()
|
||||
%z0 = call i32 @get()
|
||||
%z1 = icmp slt i32 %z0, 3000
|
||||
br i1 %z1, label %block_a_true, label %block_a_false
|
||||
|
||||
block_a_true:
|
||||
call void @block_a_true_func()
|
||||
br label %block_a_merge
|
||||
|
||||
block_a_false:
|
||||
call void @block_a_false_func()
|
||||
br label %block_a_merge
|
||||
|
||||
block_a_merge:
|
||||
call void @block_a_merge_func()
|
||||
br label %loop
|
||||
|
||||
exit:
|
||||
call void @exit()
|
||||
ret void
|
||||
}
|
||||
|
||||
; CodeGen should move the CFG islands that are part of the loop but don't
|
||||
; conveniently fit anywhere so that they are at least contiguous with the
|
||||
; loop.
|
||||
|
||||
; CHECK-LABEL: cfg_islands:
|
||||
; CHECK: jmp .LBB3_1
|
||||
; CHECK-NEXT: align
|
||||
; CHECK-NEXT: .LBB3_7:
|
||||
; CHECK-NEXT: callq bar100
|
||||
; CHECK-NEXT: .LBB3_1:
|
||||
; CHECK-NEXT: callq loop_header
|
||||
; CHECK: jl .LBB3_7
|
||||
; CHECK: jge .LBB3_3
|
||||
; CHECK-NEXT: callq bar101
|
||||
; CHECK-NEXT: jmp .LBB3_1
|
||||
; CHECK-NEXT: align
|
||||
; CHECK-NEXT: .LBB3_3:
|
||||
; CHECK: jge .LBB3_4
|
||||
; CHECK-NEXT: callq bar102
|
||||
; CHECK-NEXT: jmp .LBB3_1
|
||||
; CHECK-NEXT: .LBB3_4:
|
||||
; CHECK: jl .LBB3_6
|
||||
; CHECK-NEXT: callq loop_latch
|
||||
; CHECK-NEXT: jmp .LBB3_1
|
||||
; CHECK-NEXT: .LBB3_6:
|
||||
|
||||
define void @cfg_islands() nounwind {
|
||||
entry:
|
||||
br label %loop
|
||||
|
||||
loop:
|
||||
call void @loop_header()
|
||||
%t0 = call i32 @get()
|
||||
%t1 = icmp slt i32 %t0, 100
|
||||
br i1 %t1, label %block100, label %bb
|
||||
|
||||
bb:
|
||||
%t2 = call i32 @get()
|
||||
%t3 = icmp slt i32 %t2, 101
|
||||
br i1 %t3, label %block101, label %bb1
|
||||
|
||||
bb1:
|
||||
%t4 = call i32 @get()
|
||||
%t5 = icmp slt i32 %t4, 102
|
||||
br i1 %t5, label %block102, label %bb2
|
||||
|
||||
bb2:
|
||||
%t6 = call i32 @get()
|
||||
%t7 = icmp slt i32 %t6, 103
|
||||
br i1 %t7, label %exit, label %bb3
|
||||
|
||||
bb3:
|
||||
call void @loop_latch()
|
||||
br label %loop
|
||||
|
||||
exit:
|
||||
call void @exit()
|
||||
ret void
|
||||
|
||||
block100:
|
||||
call void @bar100()
|
||||
br label %loop
|
||||
|
||||
block101:
|
||||
call void @bar101()
|
||||
br label %loop
|
||||
|
||||
block102:
|
||||
call void @bar102()
|
||||
br label %loop
|
||||
}
|
||||
|
||||
; CHECK-LABEL: check_minsize:
|
||||
; CHECK: jmp .LBB4_1
|
||||
; CHECK-NOT: align
|
||||
; CHECK-NEXT: .LBB4_2:
|
||||
; CHECK-NEXT: callq loop_latch
|
||||
; CHECK-NEXT: .LBB4_1:
|
||||
; CHECK-NEXT: callq loop_header
|
||||
|
||||
|
||||
define void @check_minsize() minsize nounwind {
|
||||
entry:
|
||||
br label %loop
|
||||
|
||||
loop:
|
||||
call void @loop_header()
|
||||
%t0 = tail call i32 @get()
|
||||
%t1 = icmp slt i32 %t0, 0
|
||||
br i1 %t1, label %done, label %bb
|
||||
|
||||
bb:
|
||||
call void @loop_latch()
|
||||
br label %loop
|
||||
|
||||
done:
|
||||
call void @exit()
|
||||
ret void
|
||||
}
|
||||
|
||||
; This is exactly the same function as slightly_more_involved.
|
||||
; The difference is that when optimising for size, we do not want
|
||||
; to see this reordering.
|
||||
|
||||
; CHECK-LABEL: slightly_more_involved_2:
|
||||
; CHECK-NOT: jmp .LBB5_1
|
||||
; CHECK: .LBB5_1:
|
||||
; CHECK-NEXT: callq body
|
||||
|
||||
define void @slightly_more_involved_2() #0 {
|
||||
entry:
|
||||
br label %loop
|
||||
|
||||
loop:
|
||||
call void @body()
|
||||
%t0 = call i32 @get()
|
||||
%t1 = icmp slt i32 %t0, 2
|
||||
br i1 %t1, label %block_a, label %bb
|
||||
|
||||
bb:
|
||||
%t2 = call i32 @get()
|
||||
%t3 = icmp slt i32 %t2, 99
|
||||
br i1 %t3, label %exit, label %loop
|
||||
|
||||
block_a:
|
||||
call void @bar99()
|
||||
br label %loop
|
||||
|
||||
exit:
|
||||
call void @exit()
|
||||
ret void
|
||||
}
|
||||
|
||||
attributes #0 = { minsize norecurse nounwind optsize readnone uwtable }
|
||||
|
||||
declare void @bar99() nounwind
|
||||
declare void @bar100() nounwind
|
||||
declare void @bar101() nounwind
|
||||
declare void @bar102() nounwind
|
||||
declare void @body() nounwind
|
||||
declare void @exit() nounwind
|
||||
declare void @loop_header() nounwind
|
||||
declare void @loop_latch() nounwind
|
||||
declare i32 @get() nounwind
|
||||
declare void @block_a_true_func() nounwind
|
||||
declare void @block_a_false_func() nounwind
|
||||
declare void @block_a_merge_func() nounwind
|
||||
Reference in New Issue
Block a user