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; RUN: llc -mtriple=aarch64-none-linux-gnu -max-bytes-for-alignment=8 --align-loops=32 < %s -o -| FileCheck %s --check-prefixes=CHECK,CHECK-EXPLICIT
; RUN: llc -mtriple=aarch64-none-linux-gnu --align-loops=32 < %s -o -| FileCheck %s --check-prefixes=CHECK,CHECK-IMPLICIT
; RUN: llc -mtriple=aarch64-none-linux-gnu --align-loops=32 < %s -o - --filetype=obj | llvm-objdump --arch=aarch64 -d -| FileCheck %s --check-prefixes=CHECK-OBJ,CHECK-OBJ-IMPLICIT
; RUN: llc -mtriple=aarch64-none-linux-gnu -max-bytes-for-alignment=8 --align-loops=32 < %s -o - --filetype=obj | llvm-objdump --arch=aarch64 -d -| FileCheck %s --check-prefixes=CHECK-OBJ,CHECK-OBJ-EXPLICIT
; This test is checking that the correct operands to the .p2align are emitted correctly, and that the resulting obj
; is padded as expected. The key interest in the CHECK-OBJ-* sections is the size of the padding region (the nops),
; and not the exact instructions either side of them (But the last instruction of the EXPLICIT and IMPLICIT checks
; should be the same, at different locations)
define i32 @a(i32 %x, i32* nocapture readonly %y, i32* nocapture readonly %z) {
; CHECK-LABEL: a:
; CHECK-EXPLICIT: .p2align 5, 0x0, 8
; CHECK-IMPLICIT: .p2align 5
; CHECK-NEXT: .LBB0_5: // %vector.body
; CHECK-EXPLICIT: .p2align 5, 0x0, 8
; CHECK-IMPLICIT: .p2align 5
; CHECK-NEXT: .LBB0_8: // %for.body
; CHECK-OBJ;Disassembly of section .text:
; CHECK-OBJ: 88: 2a 00 0a 8b add
; CHECK-OBJ-IMPLICIT-NEXT: 8c: 1f 20 03 d5 nop
; CHECK-OBJ-IMPLICIT-NEXT: 90: 1f 20 03 d5 nop
; CHECK-OBJ-IMPLICIT-NEXT: 94: 1f 20 03 d5 nop
; CHECK-OBJ-IMPLICIT-NEXT: 98: 1f 20 03 d5 nop
; CHECK-OBJ-IMPLICIT-NEXT: 9c: 1f 20 03 d5 nop
; CHECK-OBJ-IMPLICIT-NEXT: a0: 4b 45 40 b8 ldr
; CHECK-OBJ-EXPLICIT-NEXT: 8c: 4b 45 40 b8 ldr
entry:
%cmp10 = icmp sgt i32 %x, 0
br i1 %cmp10, label %for.body.preheader, label %for.cond.cleanup
for.body.preheader: ; preds = %entry
%wide.trip.count = zext i32 %x to i64
%min.iters.check = icmp ult i32 %x, 8
br i1 %min.iters.check, label %for.body.preheader17, label %vector.ph
vector.ph: ; preds = %for.body.preheader
%n.vec = and i64 %wide.trip.count, 4294967288
br label %vector.body
vector.body: ; preds = %vector.body, %vector.ph
%index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
%vec.phi = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %10, %vector.body ]
%vec.phi13 = phi <4 x i32> [ zeroinitializer, %vector.ph ], [ %11, %vector.body ]
%0 = getelementptr inbounds i32, i32* %y, i64 %index
%1 = bitcast i32* %0 to <4 x i32>*
%wide.load = load <4 x i32>, <4 x i32>* %1, align 4
%2 = getelementptr inbounds i32, i32* %0, i64 4
%3 = bitcast i32* %2 to <4 x i32>*
%wide.load14 = load <4 x i32>, <4 x i32>* %3, align 4
%4 = getelementptr inbounds i32, i32* %z, i64 %index
%5 = bitcast i32* %4 to <4 x i32>*
%wide.load15 = load <4 x i32>, <4 x i32>* %5, align 4
%6 = getelementptr inbounds i32, i32* %4, i64 4
%7 = bitcast i32* %6 to <4 x i32>*
%wide.load16 = load <4 x i32>, <4 x i32>* %7, align 4
%8 = add <4 x i32> %wide.load, %vec.phi
%9 = add <4 x i32> %wide.load14, %vec.phi13
%10 = add <4 x i32> %8, %wide.load15
%11 = add <4 x i32> %9, %wide.load16
%index.next = add nuw i64 %index, 8
%12 = icmp eq i64 %index.next, %n.vec
br i1 %12, label %middle.block, label %vector.body
middle.block: ; preds = %vector.body
%bin.rdx = add <4 x i32> %11, %10
%13 = call i32 @llvm.vector.reduce.add.v4i32(<4 x i32> %bin.rdx)
%cmp.n = icmp eq i64 %n.vec, %wide.trip.count
br i1 %cmp.n, label %for.cond.cleanup, label %for.body.preheader17
for.body.preheader17: ; preds = %for.body.preheader, %middle.block
%indvars.iv.ph = phi i64 [ 0, %for.body.preheader ], [ %n.vec, %middle.block ]
%b.011.ph = phi i32 [ 0, %for.body.preheader ], [ %13, %middle.block ]
br label %for.body
for.cond.cleanup: ; preds = %for.body, %middle.block, %entry
%b.0.lcssa = phi i32 [ 0, %entry ], [ %13, %middle.block ], [ %add3, %for.body ]
ret i32 %b.0.lcssa
for.body: ; preds = %for.body.preheader17, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ %indvars.iv.ph, %for.body.preheader17 ]
%b.011 = phi i32 [ %add3, %for.body ], [ %b.011.ph, %for.body.preheader17 ]
%arrayidx = getelementptr inbounds i32, i32* %y, i64 %indvars.iv
%14 = load i32, i32* %arrayidx, align 4
%arrayidx2 = getelementptr inbounds i32, i32* %z, i64 %indvars.iv
%15 = load i32, i32* %arrayidx2, align 4
%add = add i32 %14, %b.011
%add3 = add i32 %add, %15
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
declare i32 @llvm.vector.reduce.add.v4i32(<4 x i32>)
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