You've already forked linux-packaging-mono
Imported Upstream version 5.18.0.167
Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
This commit is contained in:
Xamarin Public Jenkins (auto-signing)
parent
e19d552987
commit
b084638f15
235
external/llvm/test/CodeGen/ARM/fold-stack-adjust.ll
vendored
235
external/llvm/test/CodeGen/ARM/fold-stack-adjust.ll
vendored
@ -1,235 +0,0 @@
|
||||
; Disable shrink-wrapping on the first test otherwise we wouldn't
|
||||
; exerce the path for PR18136.
|
||||
; RUN: llc -mtriple=thumbv7-apple-none-macho < %s -enable-shrink-wrap=false | FileCheck %s
|
||||
; RUN: llc -mtriple=thumbv6m-apple-none-macho -disable-fp-elim < %s | FileCheck %s --check-prefix=CHECK-T1
|
||||
; RUN: llc -mtriple=thumbv7-apple-darwin-ios -disable-fp-elim < %s | FileCheck %s --check-prefix=CHECK-IOS
|
||||
; RUN: llc -mtriple=thumbv7--linux-gnueabi -disable-fp-elim < %s | FileCheck %s --check-prefix=CHECK-LINUX
|
||||
|
||||
|
||||
declare void @bar(i8*)
|
||||
|
||||
%bigVec = type [2 x double]
|
||||
|
||||
@var = global %bigVec zeroinitializer
|
||||
|
||||
define void @check_simple() minsize {
|
||||
; CHECK-LABEL: check_simple:
|
||||
; CHECK: push {r3, r4, r5, r6, r7, lr}
|
||||
; CHECK-NOT: sub sp, sp,
|
||||
; ...
|
||||
; CHECK-NOT: add sp, sp,
|
||||
; CHECK: pop {r0, r1, r2, r3, r7, pc}
|
||||
|
||||
; CHECK-T1-LABEL: check_simple:
|
||||
; CHECK-T1: push {r3, r4, r5, r6, r7, lr}
|
||||
; CHECK-T1: add r7, sp, #16
|
||||
; CHECK-T1-NOT: sub sp, sp,
|
||||
; ...
|
||||
; CHECK-T1-NOT: add sp, sp,
|
||||
; CHECK-T1: pop {r0, r1, r2, r3, r7, pc}
|
||||
|
||||
; iOS always has a frame pointer and messing with the push affects
|
||||
; how it's set in the prologue. Make sure we get that right.
|
||||
; CHECK-IOS-LABEL: check_simple:
|
||||
; CHECK-IOS: push {r3, r4, r5, r6, r7, lr}
|
||||
; CHECK-NOT: sub sp,
|
||||
; CHECK-IOS: add r7, sp, #16
|
||||
; CHECK-NOT: sub sp,
|
||||
; ...
|
||||
; CHECK-NOT: add sp,
|
||||
; CHEC: pop {r3, r4, r5, r6, r7, pc}
|
||||
|
||||
%var = alloca i8, i32 16
|
||||
call void @bar(i8* %var)
|
||||
ret void
|
||||
}
|
||||
|
||||
define void @check_simple_too_big() minsize {
|
||||
; CHECK-LABEL: check_simple_too_big:
|
||||
; CHECK: push {r7, lr}
|
||||
; CHECK: sub sp,
|
||||
; ...
|
||||
; CHECK: add sp,
|
||||
; CHECK: pop {r7, pc}
|
||||
%var = alloca i8, i32 64
|
||||
call void @bar(i8* %var)
|
||||
ret void
|
||||
}
|
||||
|
||||
define void @check_vfp_fold() minsize {
|
||||
; CHECK-LABEL: check_vfp_fold:
|
||||
; CHECK: push {r[[GLOBREG:[0-9]+]], lr}
|
||||
; CHECK: vpush {d6, d7, d8, d9}
|
||||
; CHECK-NOT: sub sp,
|
||||
; ...
|
||||
; CHECK-NOT: add sp,
|
||||
; CHECK: vpop {d6, d7, d8, d9}
|
||||
; CHECK: pop {r[[GLOBREG]], pc}
|
||||
|
||||
; iOS uses aligned NEON stores here, which is convenient since we
|
||||
; want to make sure that works too.
|
||||
; CHECK-IOS-LABEL: check_vfp_fold:
|
||||
; CHECK-IOS: push {r4, r7, lr}
|
||||
; CHECK-IOS: sub.w r4, sp, #16
|
||||
; CHECK-IOS: bfc r4, #0, #4
|
||||
; CHECK-IOS: mov sp, r4
|
||||
; CHECK-IOS: vst1.64 {d8, d9}, [r4:128]
|
||||
; CHECK-IOS: sub sp, #16
|
||||
; ...
|
||||
; CHECK-IOS: add r4, sp, #16
|
||||
; CHECK-IOS: vld1.64 {d8, d9}, [r4:128]
|
||||
; CHECK-IOS: mov sp, r4
|
||||
; CHECK-IOS: pop {r4, r7, pc}
|
||||
|
||||
%var = alloca i8, i32 16
|
||||
|
||||
call void asm "", "r,~{d8},~{d9}"(i8* %var)
|
||||
call void @bar(i8* %var)
|
||||
|
||||
ret void
|
||||
}
|
||||
|
||||
; This function should use just enough space that the "add sp, sp, ..." could be
|
||||
; folded in except that doing so would clobber the value being returned.
|
||||
define i64 @check_no_return_clobber() minsize {
|
||||
; CHECK-LABEL: check_no_return_clobber:
|
||||
; CHECK: push {r1, r2, r3, r4, r5, r6, r7, lr}
|
||||
; CHECK-NOT: sub sp,
|
||||
; ...
|
||||
; CHECK: add sp, #24
|
||||
; CHECK: pop {r7, pc}
|
||||
|
||||
; Just to keep iOS FileCheck within previous function:
|
||||
; CHECK-IOS-LABEL: check_no_return_clobber:
|
||||
|
||||
%var = alloca i8, i32 20
|
||||
call void @bar(i8* %var)
|
||||
ret i64 0
|
||||
}
|
||||
|
||||
define arm_aapcs_vfpcc double @check_vfp_no_return_clobber() minsize {
|
||||
; CHECK-LABEL: check_vfp_no_return_clobber:
|
||||
; CHECK: push {r[[GLOBREG:[0-9]+]], lr}
|
||||
; CHECK: vpush {d0, d1, d2, d3, d4, d5, d6, d7, d8, d9}
|
||||
; CHECK-NOT: sub sp,
|
||||
; ...
|
||||
; CHECK: add sp, #64
|
||||
; CHECK: vpop {d8, d9}
|
||||
; CHECK: pop {r[[GLOBREG]], pc}
|
||||
|
||||
%var = alloca i8, i32 64
|
||||
|
||||
%tmp = load %bigVec, %bigVec* @var
|
||||
call void @bar(i8* %var)
|
||||
store %bigVec %tmp, %bigVec* @var
|
||||
|
||||
ret double 1.0
|
||||
}
|
||||
|
||||
@dbl = global double 0.0
|
||||
|
||||
; PR18136: there was a bug determining where the first eligible pop in a
|
||||
; basic-block was when the entire block was epilogue code.
|
||||
define void @test_fold_point(i1 %tst) minsize {
|
||||
; CHECK-LABEL: test_fold_point:
|
||||
|
||||
; Important to check for beginning of basic block, because if it gets
|
||||
; if-converted the test is probably no longer checking what it should.
|
||||
; CHECK: %end
|
||||
; CHECK-NEXT: vpop {d7, d8}
|
||||
; CHECK-NEXT: pop {r4, pc}
|
||||
|
||||
; With a guaranteed frame-pointer, we want to make sure that its offset in the
|
||||
; push block is correct, even if a few registers have been tacked onto a later
|
||||
; vpush (PR18160).
|
||||
; CHECK-IOS-LABEL: test_fold_point:
|
||||
; CHECK-IOS: push {r4, r7, lr}
|
||||
; CHECK-IOS-NEXT: add r7, sp, #4
|
||||
; CHECK-IOS-NEXT: vpush {d7, d8}
|
||||
|
||||
; We want some memory so there's a stack adjustment to fold...
|
||||
%var = alloca i8, i32 8
|
||||
|
||||
; We want a long-lived floating register so that a callee-saved dN is used and
|
||||
; there's both a vpop and a pop.
|
||||
%live_val = load double, double* @dbl
|
||||
br i1 %tst, label %true, label %end
|
||||
true:
|
||||
call void @bar(i8* %var)
|
||||
store double %live_val, double* @dbl
|
||||
br label %end
|
||||
end:
|
||||
; We want the epilogue to be the only thing in a basic block so that we hit
|
||||
; the correct edge-case (first inst in block is correct one to adjust).
|
||||
ret void
|
||||
}
|
||||
|
||||
define void @test_varsize(...) minsize {
|
||||
; CHECK-T1-LABEL: test_varsize:
|
||||
; CHECK-T1: sub sp, #16
|
||||
; CHECK-T1: push {r5, r6, r7, lr}
|
||||
; ...
|
||||
; CHECK-T1: pop {r2, r3, r7}
|
||||
; CHECK-T1: pop {[[POP_REG:r[0-3]]]}
|
||||
; CHECK-T1: add sp, #16
|
||||
; CHECK-T1: bx [[POP_REG]]
|
||||
|
||||
; CHECK-LABEL: test_varsize:
|
||||
; CHECK: sub sp, #16
|
||||
; CHECK: push {r5, r6, r7, lr}
|
||||
; ...
|
||||
; CHECK: pop.w {r2, r3, r7, lr}
|
||||
; CHECK: add sp, #16
|
||||
; CHECK: bx lr
|
||||
|
||||
%var = alloca i8, i32 8
|
||||
call void @llvm.va_start(i8* %var)
|
||||
call void @bar(i8* %var)
|
||||
ret void
|
||||
}
|
||||
|
||||
%"MyClass" = type { i8*, i32, i32, float, float, float, [2 x i8], i32, i32* }
|
||||
|
||||
declare float @foo()
|
||||
|
||||
declare void @bar3()
|
||||
|
||||
declare %"MyClass"* @bar2(%"MyClass"* returned, i16*, i32, float, float, i32, i32, i1 zeroext, i1 zeroext, i32)
|
||||
|
||||
define fastcc float @check_vfp_no_return_clobber2(i16* %r, i16* %chars, i32 %length, i1 zeroext %flag) minsize {
|
||||
entry:
|
||||
; CHECK-LINUX-LABEL: check_vfp_no_return_clobber2
|
||||
; CHECK-LINUX: vpush {d0, d1, d2, d3, d4, d5, d6, d7, d8}
|
||||
; CHECK-NOT: sub sp,
|
||||
; ...
|
||||
; CHECK-LINUX: add sp
|
||||
; CHECK-LINUX: vpop {d8}
|
||||
%run = alloca %"MyClass", align 4
|
||||
%call = call %"MyClass"* @bar2(%"MyClass"* %run, i16* %chars, i32 %length, float 0.000000e+00, float 0.000000e+00, i32 1, i32 1, i1 zeroext false, i1 zeroext true, i32 3)
|
||||
%call1 = call float @foo()
|
||||
%cmp = icmp eq %"MyClass"* %run, null
|
||||
br i1 %cmp, label %exit, label %if.then
|
||||
|
||||
if.then: ; preds = %entry
|
||||
call void @bar3()
|
||||
br label %exit
|
||||
|
||||
exit: ; preds = %if.then, %entry
|
||||
ret float %call1
|
||||
}
|
||||
|
||||
declare void @use_arr(i32*)
|
||||
define void @test_fold_reuse() minsize {
|
||||
; CHECK-LABEL: test_fold_reuse:
|
||||
; CHECK: push.w {r4, r7, r8, lr}
|
||||
; CHECK: sub sp, #24
|
||||
; [...]
|
||||
; CHECK: add sp, #24
|
||||
; CHECK: pop.w {r4, r7, r8, pc}
|
||||
%arr = alloca i8, i32 24
|
||||
call void asm sideeffect "", "~{r8},~{r4}"()
|
||||
call void @bar(i8* %arr)
|
||||
ret void
|
||||
}
|
||||
|
||||
declare void @llvm.va_start(i8*) nounwind
|
||||
Reference in New Issue
Block a user