210 lines
6.3 KiB
LLVM
210 lines
6.3 KiB
LLVM
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
||
|
|
; RUN: llc < %s -mcpu cortex-a53 -mtriple=aarch64-eabi | FileCheck %s --check-prefix=A53
|
||
|
|
|
||
|
|
; PR26827 - Merge stores causes wrong dependency.
|
||
|
|
%struct1 = type { ptr, ptr, i32, i32, i16, i16, ptr, ptr }
|
||
|
|
@gv0 = internal unnamed_addr global i32 0, align 4
|
||
|
|
@gv1 = internal unnamed_addr global ptr null, align 8
|
||
|
|
|
||
|
|
define void @test(ptr %fde, i32 %fd, ptr %func, ptr %arg) uwtable {
|
||
|
|
;CHECK-LABEL: test
|
||
|
|
; A53-LABEL: test:
|
||
|
|
; A53: // %bb.0: // %entry
|
||
|
|
; A53-NEXT: stp x30, x19, [sp, #-16]! // 16-byte Folded Spill
|
||
|
|
; A53-NEXT: .cfi_def_cfa_offset 16
|
||
|
|
; A53-NEXT: .cfi_offset w19, -8
|
||
|
|
; A53-NEXT: .cfi_offset w30, -16
|
||
|
|
; A53-NEXT: .cfi_remember_state
|
||
|
|
; A53-NEXT: movi v0.2d, #0000000000000000
|
||
|
|
; A53-NEXT: mov x8, x0
|
||
|
|
; A53-NEXT: mov x19, x8
|
||
|
|
; A53-NEXT: mov w0, w1
|
||
|
|
; A53-NEXT: mov w9, #256
|
||
|
|
; A53-NEXT: stp x2, x3, [x8, #32]
|
||
|
|
; A53-NEXT: mov x2, x8
|
||
|
|
; A53-NEXT: str q0, [x19, #16]!
|
||
|
|
; A53-NEXT: str w1, [x19]
|
||
|
|
; A53-NEXT: mov w1, #4
|
||
|
|
; A53-NEXT: str q0, [x8]
|
||
|
|
; A53-NEXT: strh w9, [x8, #24]
|
||
|
|
; A53-NEXT: str wzr, [x8, #20]
|
||
|
|
; A53-NEXT: bl fcntl
|
||
|
|
; A53-NEXT: adrp x9, gv0
|
||
|
|
; A53-NEXT: add x9, x9, :lo12:gv0
|
||
|
|
; A53-NEXT: cmp x19, x9
|
||
|
|
; A53-NEXT: b.eq .LBB0_4
|
||
|
|
; A53-NEXT: // %bb.1:
|
||
|
|
; A53-NEXT: ldr w8, [x19]
|
||
|
|
; A53-NEXT: ldr w9, [x9]
|
||
|
|
; A53-NEXT: .p2align 4, , 8
|
||
|
|
; A53-NEXT: .LBB0_2: // %while.body.i.split.ver.us
|
||
|
|
; A53-NEXT: // =>This Inner Loop Header: Depth=1
|
||
|
|
; A53-NEXT: lsl w9, w9, #1
|
||
|
|
; A53-NEXT: cmp w9, w8
|
||
|
|
; A53-NEXT: b.le .LBB0_2
|
||
|
|
; A53-NEXT: // %bb.3: // %while.end.i
|
||
|
|
; A53-NEXT: bl foo
|
||
|
|
; A53-NEXT: adrp x8, gv1
|
||
|
|
; A53-NEXT: str x0, [x8, :lo12:gv1]
|
||
|
|
; A53-NEXT: ldp x30, x19, [sp], #16 // 16-byte Folded Reload
|
||
|
|
; A53-NEXT: .cfi_def_cfa_offset 0
|
||
|
|
; A53-NEXT: .cfi_restore w19
|
||
|
|
; A53-NEXT: .cfi_restore w30
|
||
|
|
; A53-NEXT: ret
|
||
|
|
; A53-NEXT: .p2align 4, , 8
|
||
|
|
; A53-NEXT: .LBB0_4: // %while.body.i.split
|
||
|
|
; A53-NEXT: // =>This Inner Loop Header: Depth=1
|
||
|
|
; A53-NEXT: .cfi_restore_state
|
||
|
|
; A53-NEXT: b .LBB0_4
|
||
|
|
entry:
|
||
|
|
tail call void @llvm.memset.p0.i64(ptr align 8 %fde, i8 0, i64 40, i1 false)
|
||
|
|
%state = getelementptr inbounds %struct1, ptr %fde, i64 0, i32 4
|
||
|
|
store i16 256, ptr %state, align 8
|
||
|
|
%fd1 = getelementptr inbounds %struct1, ptr %fde, i64 0, i32 2
|
||
|
|
store i32 %fd, ptr %fd1, align 8
|
||
|
|
%force_eof = getelementptr inbounds %struct1, ptr %fde, i64 0, i32 3
|
||
|
|
store i32 0, ptr %force_eof, align 4
|
||
|
|
%func2 = getelementptr inbounds %struct1, ptr %fde, i64 0, i32 6
|
||
|
|
store ptr %func, ptr %func2, align 8
|
||
|
|
%arg3 = getelementptr inbounds %struct1, ptr %fde, i64 0, i32 7
|
||
|
|
store ptr %arg, ptr %arg3, align 8
|
||
|
|
%call = tail call i32 (i32, i32, ...) @fcntl(i32 %fd, i32 4, ptr %fde) #6
|
||
|
|
%0 = load i32, ptr %fd1, align 8
|
||
|
|
%cmp.i = icmp slt i32 %0, 0
|
||
|
|
br i1 %cmp.i, label %if.then.i, label %while.body.i.preheader
|
||
|
|
if.then.i:
|
||
|
|
unreachable
|
||
|
|
|
||
|
|
while.body.i.preheader:
|
||
|
|
%1 = load i32, ptr @gv0, align 4
|
||
|
|
%2 = icmp eq ptr %fd1, @gv0
|
||
|
|
br i1 %2, label %while.body.i.split, label %while.body.i.split.ver.us.preheader
|
||
|
|
|
||
|
|
while.body.i.split.ver.us.preheader:
|
||
|
|
br label %while.body.i.split.ver.us
|
||
|
|
|
||
|
|
while.body.i.split.ver.us:
|
||
|
|
%.reg2mem21.0 = phi i32 [ %mul.i.ver.us, %while.body.i.split.ver.us ], [ %1, %while.body.i.split.ver.us.preheader ]
|
||
|
|
%mul.i.ver.us = shl nsw i32 %.reg2mem21.0, 1
|
||
|
|
%3 = icmp sgt i32 %mul.i.ver.us, %0
|
||
|
|
br i1 %3, label %while.end.i, label %while.body.i.split.ver.us
|
||
|
|
|
||
|
|
while.body.i.split:
|
||
|
|
br label %while.body.i.split
|
||
|
|
|
||
|
|
while.end.i:
|
||
|
|
%call.i = tail call ptr @foo()
|
||
|
|
store ptr %call.i, ptr @gv1, align 8
|
||
|
|
br label %exit
|
||
|
|
|
||
|
|
exit:
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; TODO: rev16?
|
||
|
|
|
||
|
|
define void @rotate16_in_place(ptr %p) {
|
||
|
|
; A53-LABEL: rotate16_in_place:
|
||
|
|
; A53: // %bb.0:
|
||
|
|
; A53-NEXT: ldrb w8, [x0, #1]
|
||
|
|
; A53-NEXT: ldrb w9, [x0]
|
||
|
|
; A53-NEXT: strb w8, [x0]
|
||
|
|
; A53-NEXT: strb w9, [x0, #1]
|
||
|
|
; A53-NEXT: ret
|
||
|
|
%p1 = getelementptr i8, ptr %p, i64 1
|
||
|
|
%i0 = load i8, ptr %p, align 1
|
||
|
|
%i1 = load i8, ptr %p1, align 1
|
||
|
|
store i8 %i1, ptr %p, align 1
|
||
|
|
store i8 %i0, ptr %p1, align 1
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; TODO: rev16?
|
||
|
|
|
||
|
|
define void @rotate16(ptr %p, ptr %q) {
|
||
|
|
; A53-LABEL: rotate16:
|
||
|
|
; A53: // %bb.0:
|
||
|
|
; A53-NEXT: ldrb w8, [x0, #1]
|
||
|
|
; A53-NEXT: ldrb w9, [x0]
|
||
|
|
; A53-NEXT: strb w8, [x1]
|
||
|
|
; A53-NEXT: strb w9, [x1, #1]
|
||
|
|
; A53-NEXT: ret
|
||
|
|
%p1 = getelementptr i8, ptr %p, i64 1
|
||
|
|
%q1 = getelementptr i8, ptr %q, i64 1
|
||
|
|
%i0 = load i8, ptr %p, align 1
|
||
|
|
%i1 = load i8, ptr %p1, align 1
|
||
|
|
store i8 %i1, ptr %q, align 1
|
||
|
|
store i8 %i0, ptr %q1, align 1
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @rotate32_in_place(ptr %p) {
|
||
|
|
; A53-LABEL: rotate32_in_place:
|
||
|
|
; A53: // %bb.0:
|
||
|
|
; A53-NEXT: ldr w8, [x0]
|
||
|
|
; A53-NEXT: ror w8, w8, #16
|
||
|
|
; A53-NEXT: str w8, [x0]
|
||
|
|
; A53-NEXT: ret
|
||
|
|
%p1 = getelementptr i16, ptr %p, i64 1
|
||
|
|
%i0 = load i16, ptr %p, align 2
|
||
|
|
%i1 = load i16, ptr %p1, align 2
|
||
|
|
store i16 %i1, ptr %p, align 2
|
||
|
|
store i16 %i0, ptr %p1, align 2
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
define void @rotate32(ptr %p) {
|
||
|
|
; A53-LABEL: rotate32:
|
||
|
|
; A53: // %bb.0:
|
||
|
|
; A53-NEXT: ldr w8, [x0]
|
||
|
|
; A53-NEXT: ror w8, w8, #16
|
||
|
|
; A53-NEXT: str w8, [x0, #84]
|
||
|
|
; A53-NEXT: ret
|
||
|
|
%p1 = getelementptr i16, ptr %p, i64 1
|
||
|
|
%p42 = getelementptr i16, ptr %p, i64 42
|
||
|
|
%p43 = getelementptr i16, ptr %p, i64 43
|
||
|
|
%i0 = load i16, ptr %p, align 2
|
||
|
|
%i1 = load i16, ptr %p1, align 2
|
||
|
|
store i16 %i1, ptr %p42, align 2
|
||
|
|
store i16 %i0, ptr %p43, align 2
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Prefer paired memops over rotate.
|
||
|
|
|
||
|
|
define void @rotate64_in_place(ptr %p) {
|
||
|
|
; A53-LABEL: rotate64_in_place:
|
||
|
|
; A53: // %bb.0:
|
||
|
|
; A53-NEXT: ldp w9, w8, [x0]
|
||
|
|
; A53-NEXT: stp w8, w9, [x0]
|
||
|
|
; A53-NEXT: ret
|
||
|
|
%p1 = getelementptr i32, ptr %p, i64 1
|
||
|
|
%i0 = load i32, ptr %p, align 4
|
||
|
|
%i1 = load i32, ptr %p1, align 4
|
||
|
|
store i32 %i1, ptr %p, align 4
|
||
|
|
store i32 %i0, ptr %p1, align 4
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Prefer paired memops over rotate.
|
||
|
|
|
||
|
|
define void @rotate64(ptr %p) {
|
||
|
|
; A53-LABEL: rotate64:
|
||
|
|
; A53: // %bb.0:
|
||
|
|
; A53-NEXT: ldp w9, w8, [x0]
|
||
|
|
; A53-NEXT: stp w8, w9, [x0, #8]
|
||
|
|
; A53-NEXT: ret
|
||
|
|
%p1 = getelementptr i32, ptr %p, i64 1
|
||
|
|
%p2 = getelementptr i32, ptr %p, i64 2
|
||
|
|
%p3 = getelementptr i32, ptr %p, i64 3
|
||
|
|
%i0 = load i32, ptr %p, align 4
|
||
|
|
%i1 = load i32, ptr %p1, align 4
|
||
|
|
store i32 %i1, ptr %p2, align 4
|
||
|
|
store i32 %i0, ptr %p3, align 4
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1)
|
||
|
|
declare i32 @fcntl(i32, i32, ...)
|
||
|
|
declare noalias ptr @foo()
|